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authorDavid Woodhouse <David.Woodhouse@intel.com>2010-05-10 15:32:46 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-05-10 15:32:46 +0200
commit0ae28a35bcb7984838acbf28bfba9c030f8b74f0 (patch)
tree4f449d929b5df9e126e839f388ff0fd2b52028a0 /fs
parentmtd: mpc5121_nfc: Changed SVR check to allow MPC5123. (diff)
parentLinux 2.6.34-rc7 (diff)
downloadlinux-0ae28a35bcb7984838acbf28bfba9c030f8b74f0.tar.xz
linux-0ae28a35bcb7984838acbf28bfba9c030f8b74f0.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/mtd/mtdcore.c Pull in the bdi fixes and ARM platform changes that other outstanding patches depend on.
Diffstat (limited to 'fs')
-rw-r--r--fs/9p/cache.c1
-rw-r--r--fs/9p/fid.c13
-rw-r--r--fs/9p/v9fs.c32
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-rw-r--r--fs/9p/vfs_super.c5
-rw-r--r--fs/adfs/super.c1
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-rw-r--r--fs/affs/super.c1
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-rw-r--r--fs/afs/file.c2
-rw-r--r--fs/afs/fsclient.c1
-rw-r--r--fs/afs/inode.c1
-rw-r--r--fs/afs/internal.h2
-rw-r--r--fs/afs/mntpt.c26
-rw-r--r--fs/afs/rxrpc.c1
-rw-r--r--fs/afs/security.c5
-rw-r--r--fs/afs/super.c1
-rw-r--r--fs/afs/vlclient.c1
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-rw-r--r--fs/afs/volume.c7
-rw-r--r--fs/anon_inodes.c1
-rw-r--r--fs/autofs/root.c1
-rw-r--r--fs/autofs4/dev-ioctl.c1
-rw-r--r--fs/autofs4/root.c1
-rw-r--r--fs/befs/datastream.c1
-rw-r--r--fs/binfmt_aout.c16
-rw-r--r--fs/binfmt_elf_fdpic.c9
-rw-r--r--fs/binfmt_em86.c1
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-rw-r--r--fs/btrfs/ctree.c5
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-rw-r--r--fs/btrfs/extent-tree.c44
-rw-r--r--fs/btrfs/extent_io.c16
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-rw-r--r--fs/ecryptfs/ecryptfs_kernel.h15
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-rw-r--r--fs/ecryptfs/keystore.c1
-rw-r--r--fs/ecryptfs/kthread.c1
-rw-r--r--fs/ecryptfs/main.c11
-rw-r--r--fs/ecryptfs/messaging.c1
-rw-r--r--fs/ecryptfs/miscdev.c1
-rw-r--r--fs/ecryptfs/mmap.c39
-rw-r--r--fs/ecryptfs/super.c3
-rw-r--r--fs/eventfd.c1
-rw-r--r--fs/exofs/exofs.h2
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-rw-r--r--fs/ext2/balloc.c1
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-rw-r--r--fs/ext3/balloc.c1
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-rw-r--r--fs/ext4/block_validity.c1
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-rw-r--r--fs/fat/cache.c1
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-rw-r--r--fs/ubifs/sb.c1
-rw-r--r--fs/ubifs/tnc.c1
-rw-r--r--fs/ubifs/ubifs.h1
-rw-r--r--fs/ubifs/xattr.c1
-rw-r--r--fs/udf/balloc.c10
-rw-r--r--fs/udf/file.c2
-rw-r--r--fs/udf/inode.c2
-rw-r--r--fs/udf/namei.c9
-rw-r--r--fs/udf/partition.c1
-rw-r--r--fs/udf/symlink.c1
-rw-r--r--fs/udf/udfdecl.h3
-rw-r--r--fs/udf/unicode.c1
-rw-r--r--fs/xattr_acl.c2
-rw-r--r--fs/xfs/linux-2.6/kmem.c1
-rw-r--r--fs/xfs/linux-2.6/xfs_acl.c1
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.c1
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c1
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl32.c1
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c1
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c6
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.c116
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.h7
-rw-r--r--fs/xfs/quota/xfs_qm_syscalls.c3
-rw-r--r--fs/xfs/xfs_ag.h1
-rw-r--r--fs/xfs/xfs_dfrag.c22
-rw-r--r--fs/xfs/xfs_log.c38
-rw-r--r--fs/xfs/xfs_mount.h1
429 files changed, 2431 insertions, 1407 deletions
diff --git a/fs/9p/cache.c b/fs/9p/cache.c
index e777961939f3..0dbe0d139ac2 100644
--- a/fs/9p/cache.c
+++ b/fs/9p/cache.c
@@ -22,6 +22,7 @@
#include <linux/jiffies.h>
#include <linux/file.h>
+#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/sched.h>
#include <linux/fs.h>
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index 08b2eb157048..7317b39b2815 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/idr.h>
#include <net/9p/9p.h>
@@ -110,7 +111,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
{
int i, n, l, clone, any, access;
u32 uid;
- struct p9_fid *fid;
+ struct p9_fid *fid, *old_fid = NULL;
struct dentry *d, *ds;
struct v9fs_session_info *v9ses;
char **wnames, *uname;
@@ -183,10 +184,18 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
l = min(n - i, P9_MAXWELEM);
fid = p9_client_walk(fid, l, &wnames[i], clone);
if (IS_ERR(fid)) {
+ if (old_fid) {
+ /*
+ * If we fail, clunk fid which are mapping
+ * to path component and not the last component
+ * of the path.
+ */
+ p9_client_clunk(old_fid);
+ }
kfree(wnames);
return fid;
}
-
+ old_fid = fid;
i += l;
clone = 0;
}
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 6c7f6a251115..f8b86e92cd66 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -29,6 +29,7 @@
#include <linux/sched.h>
#include <linux/parser.h>
#include <linux/idr.h>
+#include <linux/slab.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
#include <net/9p/transport.h>
@@ -237,11 +238,18 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
return ERR_PTR(-ENOMEM);
}
+ rc = bdi_setup_and_register(&v9ses->bdi, "9p", BDI_CAP_MAP_COPY);
+ if (rc) {
+ __putname(v9ses->aname);
+ __putname(v9ses->uname);
+ return ERR_PTR(rc);
+ }
+
spin_lock(&v9fs_sessionlist_lock);
list_add(&v9ses->slist, &v9fs_sessionlist);
spin_unlock(&v9fs_sessionlist_lock);
- v9ses->flags = V9FS_PROTO_2000U | V9FS_ACCESS_USER;
+ v9ses->flags = V9FS_ACCESS_USER;
strcpy(v9ses->uname, V9FS_DEFUSER);
strcpy(v9ses->aname, V9FS_DEFANAME);
v9ses->uid = ~0;
@@ -262,8 +270,10 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
goto error;
}
- if (!p9_is_proto_dotu(v9ses->clnt))
- v9ses->flags &= ~V9FS_PROTO_2000U;
+ if (p9_is_proto_dotl(v9ses->clnt))
+ v9ses->flags |= V9FS_PROTO_2000L;
+ else if (p9_is_proto_dotu(v9ses->clnt))
+ v9ses->flags |= V9FS_PROTO_2000U;
v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;
@@ -298,6 +308,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
return fid;
error:
+ bdi_destroy(&v9ses->bdi);
return ERR_PTR(retval);
}
@@ -323,6 +334,8 @@ void v9fs_session_close(struct v9fs_session_info *v9ses)
__putname(v9ses->uname);
__putname(v9ses->aname);
+ bdi_destroy(&v9ses->bdi);
+
spin_lock(&v9fs_sessionlist_lock);
list_del(&v9ses->slist);
spin_unlock(&v9fs_sessionlist_lock);
@@ -340,6 +353,19 @@ void v9fs_session_cancel(struct v9fs_session_info *v9ses) {
p9_client_disconnect(v9ses->clnt);
}
+/**
+ * v9fs_session_begin_cancel - Begin terminate of a session
+ * @v9ses: session to terminate
+ *
+ * After this call we don't allow any request other than clunk.
+ */
+
+void v9fs_session_begin_cancel(struct v9fs_session_info *v9ses)
+{
+ P9_DPRINTK(P9_DEBUG_ERROR, "begin cancel session %p\n", v9ses);
+ p9_client_begin_disconnect(v9ses->clnt);
+}
+
extern int v9fs_error_init(void);
static struct kobject *v9fs_kobj;
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index 6b801d1ddf4b..bec4d0bcb458 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -20,6 +20,7 @@
* Boston, MA 02111-1301 USA
*
*/
+#include <linux/backing-dev.h>
/**
* enum p9_session_flags - option flags for each 9P session
@@ -102,12 +103,14 @@ struct v9fs_session_info {
u32 uid; /* if ACCESS_SINGLE, the uid that has access */
struct p9_client *clnt; /* 9p client */
struct list_head slist; /* list of sessions registered with v9fs */
+ struct backing_dev_info bdi;
};
struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *,
char *);
void v9fs_session_close(struct v9fs_session_info *v9ses);
void v9fs_session_cancel(struct v9fs_session_info *v9ses);
+void v9fs_session_begin_cancel(struct v9fs_session_info *v9ses);
#define V9FS_MAGIC 0x01021997
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index d74325295b1e..cbf4e50f3933 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -34,6 +34,7 @@
#include <linux/namei.h>
#include <linux/idr.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index d8a3afe4ff72..0adfd64dfcee 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -32,6 +32,7 @@
#include <linux/sched.h>
#include <linux/inet.h>
#include <linux/idr.h>
+#include <linux/slab.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -130,6 +131,8 @@ static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
rdir = (struct p9_rdir *) fid->rdir;
err = mutex_lock_interruptible(&rdir->mutex);
+ if (err)
+ return err;
while (err == 0) {
if (rdir->tail == rdir->head) {
err = v9fs_file_readn(filp, rdir->buf, NULL,
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 5fe45d692c9f..f2434fc9d2c4 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -34,6 +34,7 @@
#include <linux/namei.h>
#include <linux/idr.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -431,6 +432,7 @@ error:
static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
{
+ int retval;
struct inode *file_inode;
struct v9fs_session_info *v9ses;
struct p9_fid *v9fid;
@@ -444,7 +446,10 @@ static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
if (IS_ERR(v9fid))
return PTR_ERR(v9fid);
- return p9_client_remove(v9fid);
+ retval = p9_client_remove(v9fid);
+ if (!retval)
+ drop_nlink(file_inode);
+ return retval;
}
static int
@@ -656,6 +661,9 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
P9_DPRINTK(P9_DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
dir, dentry->d_name.name, dentry, nameidata);
+ if (dentry->d_name.len > NAME_MAX)
+ return ERR_PTR(-ENAMETOOLONG);
+
sb = dir->i_sb;
v9ses = v9fs_inode2v9ses(dir);
dfid = v9fs_fid_lookup(dentry->d_parent);
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 69357c0d9899..806da5d3b3a0 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -37,6 +37,7 @@
#include <linux/mount.h>
#include <linux/idr.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
@@ -76,6 +77,7 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
sb->s_blocksize = 1 << sb->s_blocksize_bits;
sb->s_magic = V9FS_MAGIC;
sb->s_op = &v9fs_super_ops;
+ sb->s_bdi = &v9ses->bdi;
sb->s_flags = flags | MS_ACTIVE | MS_SYNCHRONOUS | MS_DIRSYNC |
MS_NOATIME;
@@ -193,6 +195,7 @@ static void v9fs_kill_super(struct super_block *s)
kill_anon_super(s);
+ v9fs_session_cancel(v9ses);
v9fs_session_close(v9ses);
kfree(v9ses);
s->s_fs_info = NULL;
@@ -205,7 +208,7 @@ v9fs_umount_begin(struct super_block *sb)
struct v9fs_session_info *v9ses;
v9ses = sb->s_fs_info;
- v9fs_session_cancel(v9ses);
+ v9fs_session_begin_cancel(v9ses);
}
static const struct super_operations v9fs_super_ops = {
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index 6910a98bd73c..4a3af7075c1d 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -13,6 +13,7 @@
#include <linux/parser.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/statfs.h>
#include "adfs.h"
diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c
index 8306d53307ed..3e262711ae06 100644
--- a/fs/affs/bitmap.c
+++ b/fs/affs/bitmap.c
@@ -7,6 +7,7 @@
* block allocation, deallocation, calculation of free space.
*/
+#include <linux/slab.h>
#include "affs.h"
/* This is, of course, shamelessly stolen from fs/minix */
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index c9744d771d98..f4b2a4ee4f91 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -10,6 +10,7 @@
* (C) 1991 Linus Torvalds - minix filesystem
*/
#include <linux/sched.h>
+#include <linux/gfp.h>
#include "affs.h"
extern const struct inode_operations affs_symlink_inode_operations;
diff --git a/fs/affs/super.c b/fs/affs/super.c
index d41e9673cd97..16a3e4765f68 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -17,6 +17,7 @@
#include <linux/magic.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include "affs.h"
extern struct timezone sys_tz;
diff --git a/fs/afs/cache.c b/fs/afs/cache.c
index e2b1d3f16519..0fb315dd4d2a 100644
--- a/fs/afs/cache.c
+++ b/fs/afs/cache.c
@@ -9,7 +9,6 @@
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/slab.h>
#include <linux/sched.h>
#include "internal.h"
diff --git a/fs/afs/cmservice.c b/fs/afs/cmservice.c
index eb765489164f..a3bcec75c54a 100644
--- a/fs/afs/cmservice.c
+++ b/fs/afs/cmservice.c
@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/ip.h>
#include "internal.h"
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 88067f36e5e7..adc1cb771b57 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/ctype.h>
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 39b301662f22..0df9bc2b724d 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -12,10 +12,10 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/writeback.h>
+#include <linux/gfp.h>
#include "internal.h"
static int afs_readpage(struct file *file, struct page *page);
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 023b95b0d9d7..4bd0218473a9 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -10,6 +10,7 @@
*/
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/circ_buf.h>
#include "internal.h"
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index c048f0658751..d00b312e3110 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -16,7 +16,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/sched.h>
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index c54dad4e6063..a10f2582844f 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -19,6 +19,7 @@
#include <linux/workqueue.h>
#include <linux/sched.h>
#include <linux/fscache.h>
+#include <linux/backing-dev.h>
#include "afs.h"
#include "afs_vl.h"
@@ -313,6 +314,7 @@ struct afs_volume {
unsigned short rjservers; /* number of servers discarded due to -ENOMEDIUM */
struct afs_server *servers[8]; /* servers on which volume resides (ordered) */
struct rw_semaphore server_sem; /* lock for accessing current server */
+ struct backing_dev_info bdi;
};
/*
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index 5ffb570cd3a8..b3feddc4f7d6 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -12,11 +12,11 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/mount.h>
#include <linux/namei.h>
+#include <linux/gfp.h>
#include "internal.h"
@@ -138,9 +138,9 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
{
struct afs_super_info *super;
struct vfsmount *mnt;
- struct page *page = NULL;
+ struct page *page;
size_t size;
- char *buf, *devname = NULL, *options = NULL;
+ char *buf, *devname, *options;
int ret;
_enter("{%s}", mntpt->d_name.name);
@@ -150,22 +150,22 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
ret = -EINVAL;
size = mntpt->d_inode->i_size;
if (size > PAGE_SIZE - 1)
- goto error;
+ goto error_no_devname;
ret = -ENOMEM;
devname = (char *) get_zeroed_page(GFP_KERNEL);
if (!devname)
- goto error;
+ goto error_no_devname;
options = (char *) get_zeroed_page(GFP_KERNEL);
if (!options)
- goto error;
+ goto error_no_options;
/* read the contents of the AFS special symlink */
page = read_mapping_page(mntpt->d_inode->i_mapping, 0, NULL);
if (IS_ERR(page)) {
ret = PTR_ERR(page);
- goto error;
+ goto error_no_page;
}
ret = -EIO;
@@ -196,12 +196,12 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
return mnt;
error:
- if (page)
- page_cache_release(page);
- if (devname)
- free_page((unsigned long) devname);
- if (options)
- free_page((unsigned long) options);
+ page_cache_release(page);
+error_no_page:
+ free_page((unsigned long) options);
+error_no_options:
+ free_page((unsigned long) devname);
+error_no_devname:
_leave(" = %d", ret);
return ERR_PTR(ret);
}
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index bde3f19c0995..67cf810e0fd6 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -9,6 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/slab.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include <rxrpc/packet.h>
diff --git a/fs/afs/security.c b/fs/afs/security.c
index 3ef504370034..bb4ed144d0e4 100644
--- a/fs/afs/security.c
+++ b/fs/afs/security.c
@@ -189,8 +189,9 @@ void afs_cache_permit(struct afs_vnode *vnode, struct key *key, long acl_order)
if (!permits)
goto out_unlock;
- memcpy(permits->permits, xpermits->permits,
- count * sizeof(struct afs_permit));
+ if (xpermits)
+ memcpy(permits->permits, xpermits->permits,
+ count * sizeof(struct afs_permit));
_debug("key %x access %x",
key_serial(key), vnode->status.caller_access);
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 14f6431598ad..e932e5a3a0c1 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -311,6 +311,7 @@ static int afs_fill_super(struct super_block *sb, void *data)
sb->s_magic = AFS_FS_MAGIC;
sb->s_op = &afs_super_ops;
sb->s_fs_info = as;
+ sb->s_bdi = &as->volume->bdi;
/* allocate the root inode and dentry */
fid.vid = as->volume->vid;
diff --git a/fs/afs/vlclient.c b/fs/afs/vlclient.c
index 36c1306e09e0..340afd0cd182 100644
--- a/fs/afs/vlclient.c
+++ b/fs/afs/vlclient.c
@@ -9,6 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/sched.h>
#include "internal.h"
diff --git a/fs/afs/vlocation.c b/fs/afs/vlocation.c
index 6e689208def2..9ac260d1361d 100644
--- a/fs/afs/vlocation.c
+++ b/fs/afs/vlocation.c
@@ -11,6 +11,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/sched.h>
#include "internal.h"
diff --git a/fs/afs/vnode.c b/fs/afs/vnode.c
index 2f05c4fc2a70..25cf4c3f4ff7 100644
--- a/fs/afs/vnode.c
+++ b/fs/afs/vnode.c
@@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include "internal.h"
diff --git a/fs/afs/volume.c b/fs/afs/volume.c
index a353e69e2391..401eeb21869f 100644
--- a/fs/afs/volume.c
+++ b/fs/afs/volume.c
@@ -106,6 +106,10 @@ struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
volume->cell = params->cell;
volume->vid = vlocation->vldb.vid[params->type];
+ ret = bdi_setup_and_register(&volume->bdi, "afs", BDI_CAP_MAP_COPY);
+ if (ret)
+ goto error_bdi;
+
init_rwsem(&volume->server_sem);
/* look up all the applicable server records */
@@ -151,6 +155,8 @@ error:
return ERR_PTR(ret);
error_discard:
+ bdi_destroy(&volume->bdi);
+error_bdi:
up_write(&params->cell->vl_sem);
for (loop = volume->nservers - 1; loop >= 0; loop--)
@@ -200,6 +206,7 @@ void afs_put_volume(struct afs_volume *volume)
for (loop = volume->nservers - 1; loop >= 0; loop--)
afs_put_server(volume->servers[loop]);
+ bdi_destroy(&volume->bdi);
kfree(volume);
_leave(" [destroyed]");
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 2de009565d8e..e4b75d6eda83 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -12,7 +12,6 @@
#include <linux/file.h>
#include <linux/poll.h>
#include <linux/sched.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/mount.h>
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index 4a1401cea0a1..8713c7cfbc79 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -13,6 +13,7 @@
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/stat.h>
+#include <linux/slab.h>
#include <linux/param.h>
#include <linux/time.h>
#include <linux/smp_lock.h>
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index c8a80dffb455..d29b7f6df862 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -22,6 +22,7 @@
#include <linux/magic.h>
#include <linux/dcache.h>
#include <linux/uaccess.h>
+#include <linux/slab.h>
#include "autofs_i.h"
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index a015b49891df..109a6c606d92 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -15,6 +15,7 @@
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/stat.h>
+#include <linux/slab.h>
#include <linux/param.h>
#include <linux/time.h>
#include "autofs_i.h"
diff --git a/fs/befs/datastream.c b/fs/befs/datastream.c
index e3287d0d1a58..59096b5e0fc7 100644
--- a/fs/befs/datastream.c
+++ b/fs/befs/datastream.c
@@ -11,7 +11,6 @@
*/
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/buffer_head.h>
#include <linux/string.h>
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 15d80bb35d6f..f96eff04e11a 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -20,11 +20,11 @@
#include <linux/fcntl.h>
#include <linux/ptrace.h>
#include <linux/user.h>
-#include <linux/slab.h>
#include <linux/binfmts.h>
#include <linux/personality.h>
#include <linux/init.h>
#include <linux/coredump.h>
+#include <linux/slab.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -75,14 +75,16 @@ static int aout_core_dump(struct coredump_params *cprm)
struct file *file = cprm->file;
mm_segment_t fs;
int has_dumped = 0;
- unsigned long dump_start, dump_size;
+ void __user *dump_start;
+ int dump_size;
struct user dump;
#ifdef __alpha__
-# define START_DATA(u) (u.start_data)
+# define START_DATA(u) ((void __user *)u.start_data)
#else
-# define START_DATA(u) ((u.u_tsize << PAGE_SHIFT) + u.start_code)
+# define START_DATA(u) ((void __user *)((u.u_tsize << PAGE_SHIFT) + \
+ u.start_code))
#endif
-# define START_STACK(u) (u.start_stack)
+# define START_STACK(u) ((void __user *)u.start_stack)
fs = get_fs();
set_fs(KERNEL_DS);
@@ -104,9 +106,9 @@ static int aout_core_dump(struct coredump_params *cprm)
/* make sure we actually have a data and stack area to dump */
set_fs(USER_DS);
- if (!access_ok(VERIFY_READ, (void __user *)START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
+ if (!access_ok(VERIFY_READ, START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
dump.u_dsize = 0;
- if (!access_ok(VERIFY_READ, (void __user *)START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
+ if (!access_ok(VERIFY_READ, START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
dump.u_ssize = 0;
set_fs(KERNEL_DS);
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 2c32d00a6690..2c5f9a0e5d72 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1005,15 +1005,8 @@ static int elf_fdpic_map_file_constdisp_on_uclinux(
}
} else if (!mm->start_data) {
mm->start_data = seg->addr;
-#ifndef CONFIG_MMU
mm->end_data = seg->addr + phdr->p_memsz;
-#endif
}
-
-#ifdef CONFIG_MMU
- if (seg->addr + phdr->p_memsz > mm->end_data)
- mm->end_data = seg->addr + phdr->p_memsz;
-#endif
}
seg++;
@@ -1590,7 +1583,7 @@ static size_t elf_core_vma_data_size(unsigned long mm_flags)
struct vm_area_struct *vma;
size_t size = 0;
- for (vma = current->mm->mmap; vma; vma->vm_next)
+ for (vma = current->mm->mmap; vma; vma = vma->vm_next)
if (maydump(vma, mm_flags))
size += vma->vm_end - vma->vm_start;
return size;
diff --git a/fs/binfmt_em86.c b/fs/binfmt_em86.c
index 32fb00b52cd0..b8e8b0acf9bd 100644
--- a/fs/binfmt_em86.c
+++ b/fs/binfmt_em86.c
@@ -11,7 +11,6 @@
#include <linux/module.h>
#include <linux/string.h>
#include <linux/stat.h>
-#include <linux/slab.h>
#include <linux/binfmts.h>
#include <linux/elf.h>
#include <linux/init.h>
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index e0e769bdca59..49566c1687d8 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -355,7 +355,7 @@ calc_reloc(unsigned long r, struct lib_info *p, int curid, int internalp)
if (!flat_reloc_valid(r, start_brk - start_data + text_len)) {
printk("BINFMT_FLAT: reloc outside program 0x%x (0 - 0x%x/0x%x)",
- (int) r,(int)(start_brk-start_code),(int)text_len);
+ (int) r,(int)(start_brk-start_data+text_len),(int)text_len);
goto failed;
}
diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c
index 08343505e184..aca9d55afb22 100644
--- a/fs/binfmt_script.c
+++ b/fs/binfmt_script.c
@@ -8,7 +8,6 @@
#include <linux/module.h>
#include <linux/string.h>
#include <linux/stat.h>
-#include <linux/slab.h>
#include <linux/binfmts.h>
#include <linux/init.h>
#include <linux/file.h>
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index a16f29e888cd..612a5c38d3c1 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -24,6 +24,7 @@
#include <linux/mempool.h>
#include <linux/bio.h>
#include <linux/workqueue.h>
+#include <linux/slab.h>
struct integrity_slab {
struct kmem_cache *slab;
diff --git a/fs/bio.c b/fs/bio.c
index e1f922184b45..e7bf6ca64dcf 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -554,7 +554,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
.bi_rw = bio->bi_rw,
};
- if (q->merge_bvec_fn(q, &bvm, prev) < len) {
+ if (q->merge_bvec_fn(q, &bvm, prev) < prev->bv_len) {
prev->bv_len -= len;
return 0;
}
@@ -607,7 +607,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
* merge_bvec_fn() returns number of bytes it can accept
* at this offset
*/
- if (q->merge_bvec_fn(q, &bvm, bvec) < len) {
+ if (q->merge_bvec_fn(q, &bvm, bvec) < bvec->bv_len) {
bvec->bv_page = NULL;
bvec->bv_len = 0;
bvec->bv_offset = 0;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index d11d0289f3d2..6dcee88c2e5d 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -404,20 +404,28 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin)
* NULL first argument is nfsd_sync_dir() and that's not a directory.
*/
-static int block_fsync(struct file *filp, struct dentry *dentry, int datasync)
+int blkdev_fsync(struct file *filp, struct dentry *dentry, int datasync)
{
- struct block_device *bdev = I_BDEV(filp->f_mapping->host);
+ struct inode *bd_inode = filp->f_mapping->host;
+ struct block_device *bdev = I_BDEV(bd_inode);
int error;
- error = sync_blockdev(bdev);
- if (error)
- return error;
-
+ /*
+ * There is no need to serialise calls to blkdev_issue_flush with
+ * i_mutex and doing so causes performance issues with concurrent
+ * O_SYNC writers to a block device.
+ */
+ mutex_unlock(&bd_inode->i_mutex);
+
error = blkdev_issue_flush(bdev, NULL);
if (error == -EOPNOTSUPP)
error = 0;
+
+ mutex_lock(&bd_inode->i_mutex);
+
return error;
}
+EXPORT_SYMBOL(blkdev_fsync);
/*
* pseudo-fs
@@ -1481,7 +1489,7 @@ const struct file_operations def_blk_fops = {
.aio_read = generic_file_aio_read,
.aio_write = blkdev_aio_write,
.mmap = generic_file_mmap,
- .fsync = block_fsync,
+ .fsync = blkdev_fsync,
.unlocked_ioctl = block_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = compat_blkdev_ioctl,
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 6df6d6ed74fd..6ef7b26724ec 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -22,6 +22,7 @@
#include <linux/posix_acl_xattr.h>
#include <linux/posix_acl.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include "ctree.h"
#include "btrfs_inode.h"
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index c0861e781cdb..462859a30141 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -17,6 +17,7 @@
*/
#include <linux/kthread.h>
+#include <linux/slab.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/freezer.h>
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 28b92a7218ab..396039b3a8a2 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -31,7 +31,7 @@
#include <linux/swap.h>
#include <linux/writeback.h>
#include <linux/bit_spinlock.h>
-#include <linux/pagevec.h>
+#include <linux/slab.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
@@ -445,7 +445,6 @@ static noinline int add_ra_bio_pages(struct inode *inode,
unsigned long nr_pages = 0;
struct extent_map *em;
struct address_space *mapping = inode->i_mapping;
- struct pagevec pvec;
struct extent_map_tree *em_tree;
struct extent_io_tree *tree;
u64 end;
@@ -461,7 +460,6 @@ static noinline int add_ra_bio_pages(struct inode *inode,
end_index = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT;
- pagevec_init(&pvec, 0);
while (last_offset < compressed_end) {
page_index = last_offset >> PAGE_CACHE_SHIFT;
@@ -478,26 +476,17 @@ static noinline int add_ra_bio_pages(struct inode *inode,
goto next;
}
- page = alloc_page(mapping_gfp_mask(mapping) & ~__GFP_FS);
+ page = __page_cache_alloc(mapping_gfp_mask(mapping) &
+ ~__GFP_FS);
if (!page)
break;
- page->index = page_index;
- /*
- * what we want to do here is call add_to_page_cache_lru,
- * but that isn't exported, so we reproduce it here
- */
- if (add_to_page_cache(page, mapping,
- page->index, GFP_NOFS)) {
+ if (add_to_page_cache_lru(page, mapping, page_index,
+ GFP_NOFS)) {
page_cache_release(page);
goto next;
}
- /* open coding of lru_cache_add, also not exported */
- page_cache_get(page);
- if (!pagevec_add(&pvec, page))
- __pagevec_lru_add_file(&pvec);
-
end = last_offset + PAGE_CACHE_SIZE - 1;
/*
* at this point, we have a locked page in the page cache
@@ -551,8 +540,6 @@ static noinline int add_ra_bio_pages(struct inode *inode,
next:
last_offset += PAGE_CACHE_SIZE;
}
- if (pagevec_count(&pvec))
- __pagevec_lru_add_file(&pvec);
return 0;
}
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index c4bc570a396e..6795a713b205 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -17,6 +17,7 @@
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
@@ -3040,6 +3041,10 @@ static noinline int setup_leaf_for_split(struct btrfs_trans_handle *trans,
if (ret > 0 || item_size != btrfs_item_size_nr(leaf, path->slots[0]))
goto err;
+ /* the leaf has changed, it now has room. return now */
+ if (btrfs_leaf_free_space(root, path->nodes[0]) >= ins_len)
+ goto err;
+
if (key.type == BTRFS_EXTENT_DATA_KEY) {
fi = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_file_extent_item);
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0af2e3868573..746a7248678e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -26,6 +26,7 @@
#include <linux/completion.h>
#include <linux/backing-dev.h>
#include <linux/wait.h>
+#include <linux/slab.h>
#include <asm/kmap_types.h>
#include "extent_io.h"
#include "extent_map.h"
@@ -834,7 +835,6 @@ struct btrfs_fs_info {
u64 last_trans_log_full_commit;
u64 open_ioctl_trans;
unsigned long mount_opt;
- u64 max_extent;
u64 max_inline;
u64 alloc_start;
struct btrfs_transaction *running_transaction;
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 84e6781413b1..902ce507c4e3 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -17,6 +17,7 @@
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/sort.h>
#include "ctree.h"
#include "delayed-ref.h"
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 11d0ad30e203..feca04197d02 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -27,6 +27,7 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/crc32c.h>
+#include <linux/slab.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
@@ -43,8 +44,6 @@ static struct extent_io_ops btree_extent_io_ops;
static void end_workqueue_fn(struct btrfs_work *work);
static void free_fs_root(struct btrfs_root *root);
-static atomic_t btrfs_bdi_num = ATOMIC_INIT(0);
-
/*
* end_io_wq structs are used to do processing in task context when an IO is
* complete. This is used during reads to verify checksums, and it is used
@@ -1374,19 +1373,11 @@ static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi)
{
int err;
- bdi->name = "btrfs";
bdi->capabilities = BDI_CAP_MAP_COPY;
- err = bdi_init(bdi);
+ err = bdi_setup_and_register(bdi, "btrfs", BDI_CAP_MAP_COPY);
if (err)
return err;
- err = bdi_register(bdi, NULL, "btrfs-%d",
- atomic_inc_return(&btrfs_bdi_num));
- if (err) {
- bdi_destroy(bdi);
- return err;
- }
-
bdi->ra_pages = default_backing_dev_info.ra_pages;
bdi->unplug_io_fn = btrfs_unplug_io_fn;
bdi->unplug_io_data = info;
@@ -1634,7 +1625,6 @@ struct btrfs_root *open_ctree(struct super_block *sb,
atomic_set(&fs_info->async_submit_draining, 0);
atomic_set(&fs_info->nr_async_bios, 0);
fs_info->sb = sb;
- fs_info->max_extent = (u64)-1;
fs_info->max_inline = 8192 * 1024;
fs_info->metadata_ratio = 0;
@@ -1922,7 +1912,11 @@ struct btrfs_root *open_ctree(struct super_block *sb,
csum_root->track_dirty = 1;
- btrfs_read_block_groups(extent_root);
+ ret = btrfs_read_block_groups(extent_root);
+ if (ret) {
+ printk(KERN_ERR "Failed to read block groups: %d\n", ret);
+ goto fail_block_groups;
+ }
fs_info->generation = generation;
fs_info->last_trans_committed = generation;
@@ -1932,7 +1926,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root,
"btrfs-cleaner");
if (IS_ERR(fs_info->cleaner_kthread))
- goto fail_csum_root;
+ goto fail_block_groups;
fs_info->transaction_kthread = kthread_run(transaction_kthread,
tree_root,
@@ -2020,7 +2014,8 @@ fail_cleaner:
filemap_write_and_wait(fs_info->btree_inode->i_mapping);
invalidate_inode_pages2(fs_info->btree_inode->i_mapping);
-fail_csum_root:
+fail_block_groups:
+ btrfs_free_block_groups(fs_info);
free_extent_buffer(csum_root->node);
free_extent_buffer(csum_root->commit_root);
fail_dev_root:
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 1727b26fb194..b34d32fdaaec 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -22,6 +22,7 @@
#include <linux/sort.h>
#include <linux/rcupdate.h>
#include <linux/kthread.h>
+#include <linux/slab.h>
#include "compat.h"
#include "hash.h"
#include "ctree.h"
@@ -2676,6 +2677,8 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags,
INIT_LIST_HEAD(&found->block_groups);
init_rwsem(&found->groups_sem);
+ init_waitqueue_head(&found->flush_wait);
+ init_waitqueue_head(&found->allocate_wait);
spin_lock_init(&found->lock);
found->flags = flags;
found->total_bytes = total_bytes;
@@ -2846,7 +2849,7 @@ int btrfs_unreserve_metadata_for_delalloc(struct btrfs_root *root,
}
spin_unlock(&BTRFS_I(inode)->accounting_lock);
- BTRFS_I(inode)->reserved_extents--;
+ BTRFS_I(inode)->reserved_extents -= num_items;
BUG_ON(BTRFS_I(inode)->reserved_extents < 0);
if (meta_sinfo->bytes_delalloc < num_bytes) {
@@ -2944,12 +2947,10 @@ static void flush_delalloc(struct btrfs_root *root,
spin_lock(&info->lock);
- if (!info->flushing) {
+ if (!info->flushing)
info->flushing = 1;
- init_waitqueue_head(&info->flush_wait);
- } else {
+ else
wait = true;
- }
spin_unlock(&info->lock);
@@ -3011,7 +3012,6 @@ static int maybe_allocate_chunk(struct btrfs_root *root,
if (!info->allocating_chunk) {
info->force_alloc = 1;
info->allocating_chunk = 1;
- init_waitqueue_head(&info->allocate_wait);
} else {
wait = true;
}
@@ -3111,7 +3111,7 @@ again:
return -ENOSPC;
}
- BTRFS_I(inode)->reserved_extents++;
+ BTRFS_I(inode)->reserved_extents += num_items;
check_force_delalloc(meta_sinfo);
spin_unlock(&meta_sinfo->lock);
@@ -3235,7 +3235,8 @@ int btrfs_check_data_free_space(struct btrfs_root *root, struct inode *inode,
u64 bytes)
{
struct btrfs_space_info *data_sinfo;
- int ret = 0, committed = 0;
+ u64 used;
+ int ret = 0, committed = 0, flushed = 0;
/* make sure bytes are sectorsize aligned */
bytes = (bytes + root->sectorsize - 1) & ~((u64)root->sectorsize - 1);
@@ -3247,12 +3248,21 @@ int btrfs_check_data_free_space(struct btrfs_root *root, struct inode *inode,
again:
/* make sure we have enough space to handle the data first */
spin_lock(&data_sinfo->lock);
- if (data_sinfo->total_bytes - data_sinfo->bytes_used -
- data_sinfo->bytes_delalloc - data_sinfo->bytes_reserved -
- data_sinfo->bytes_pinned - data_sinfo->bytes_readonly -
- data_sinfo->bytes_may_use - data_sinfo->bytes_super < bytes) {
+ used = data_sinfo->bytes_used + data_sinfo->bytes_delalloc +
+ data_sinfo->bytes_reserved + data_sinfo->bytes_pinned +
+ data_sinfo->bytes_readonly + data_sinfo->bytes_may_use +
+ data_sinfo->bytes_super;
+
+ if (used + bytes > data_sinfo->total_bytes) {
struct btrfs_trans_handle *trans;
+ if (!flushed) {
+ spin_unlock(&data_sinfo->lock);
+ flush_delalloc(root, data_sinfo);
+ flushed = 1;
+ goto again;
+ }
+
/*
* if we don't have enough free bytes in this space then we need
* to alloc a new chunk.
@@ -4170,6 +4180,10 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
ins->offset = 0;
space_info = __find_space_info(root->fs_info, data);
+ if (!space_info) {
+ printk(KERN_ERR "No space info for %d\n", data);
+ return -ENOSPC;
+ }
if (orig_root->ref_cows || empty_size)
allowed_chunk_alloc = 1;
@@ -5205,6 +5219,8 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans,
next = btrfs_find_tree_block(root, bytenr, blocksize);
if (!next) {
next = btrfs_find_create_tree_block(root, bytenr, blocksize);
+ if (!next)
+ return -ENOMEM;
reada = 1;
}
btrfs_tree_lock(next);
@@ -5417,7 +5433,8 @@ static noinline int walk_down_tree(struct btrfs_trans_handle *trans,
if (ret > 0) {
path->slots[level]++;
continue;
- }
+ } else if (ret < 0)
+ return ret;
level = wc->level;
}
return 0;
@@ -7369,7 +7386,6 @@ static int find_first_block_group(struct btrfs_root *root,
}
path->slots[0]++;
}
- ret = -ENOENT;
out:
return ret;
}
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index c99121ac5d6b..d2d03684fab2 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2,7 +2,6 @@
#include <linux/slab.h>
#include <linux/bio.h>
#include <linux/mm.h>
-#include <linux/gfp.h>
#include <linux/pagemap.h>
#include <linux/page-flags.h>
#include <linux/module.h>
@@ -2679,33 +2678,20 @@ int extent_readpages(struct extent_io_tree *tree,
{
struct bio *bio = NULL;
unsigned page_idx;
- struct pagevec pvec;
unsigned long bio_flags = 0;
- pagevec_init(&pvec, 0);
for (page_idx = 0; page_idx < nr_pages; page_idx++) {
struct page *page = list_entry(pages->prev, struct page, lru);
prefetchw(&page->flags);
list_del(&page->lru);
- /*
- * what we want to do here is call add_to_page_cache_lru,
- * but that isn't exported, so we reproduce it here
- */
- if (!add_to_page_cache(page, mapping,
+ if (!add_to_page_cache_lru(page, mapping,
page->index, GFP_KERNEL)) {
-
- /* open coding of lru_cache_add, also not exported */
- page_cache_get(page);
- if (!pagevec_add(&pvec, page))
- __pagevec_lru_add_file(&pvec);
__extent_read_full_page(tree, page, get_extent,
&bio, 0, &bio_flags);
}
page_cache_release(page);
}
- if (pagevec_count(&pvec))
- __pagevec_lru_add_file(&pvec);
BUG_ON(!list_empty(pages));
if (bio)
submit_one_bio(READ, bio, 0, bio_flags);
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 28d87ba60ce8..454ca52d6451 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -1,5 +1,4 @@
#include <linux/err.h>
-#include <linux/gfp.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/spinlock.h>
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 9b99886562d0..54a255065aa3 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -17,6 +17,7 @@
*/
#include <linux/bio.h>
+#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/highmem.h>
#include "ctree.h"
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index ee3323c7fc1c..29ff749ff4ca 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -28,6 +28,7 @@
#include <linux/writeback.h>
#include <linux/statfs.h>
#include <linux/compat.h>
+#include <linux/slab.h>
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index dd831ed31eea..f488fac04d99 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -18,6 +18,7 @@
#include <linux/pagemap.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/math64.h>
#include "ctree.h"
#include "free-space-cache.h"
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 02bb099845fd..2bfdc641d4e3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -36,6 +36,7 @@
#include <linux/xattr.h>
#include <linux/posix_acl.h>
#include <linux/falloc.h>
+#include <linux/slab.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
@@ -796,7 +797,7 @@ static noinline int cow_file_range(struct inode *inode,
while (disk_num_bytes > 0) {
unsigned long op;
- cur_alloc_size = min(disk_num_bytes, root->fs_info->max_extent);
+ cur_alloc_size = disk_num_bytes;
ret = btrfs_reserve_extent(trans, root, cur_alloc_size,
root->sectorsize, 0, alloc_hint,
(u64)-1, &ins, 1);
@@ -1227,30 +1228,9 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page,
static int btrfs_split_extent_hook(struct inode *inode,
struct extent_state *orig, u64 split)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
- u64 size;
-
if (!(orig->state & EXTENT_DELALLOC))
return 0;
- size = orig->end - orig->start + 1;
- if (size > root->fs_info->max_extent) {
- u64 num_extents;
- u64 new_size;
-
- new_size = orig->end - split + 1;
- num_extents = div64_u64(size + root->fs_info->max_extent - 1,
- root->fs_info->max_extent);
-
- /*
- * if we break a large extent up then leave oustanding_extents
- * be, since we've already accounted for the large extent.
- */
- if (div64_u64(new_size + root->fs_info->max_extent - 1,
- root->fs_info->max_extent) < num_extents)
- return 0;
- }
-
spin_lock(&BTRFS_I(inode)->accounting_lock);
BTRFS_I(inode)->outstanding_extents++;
spin_unlock(&BTRFS_I(inode)->accounting_lock);
@@ -1268,38 +1248,10 @@ static int btrfs_merge_extent_hook(struct inode *inode,
struct extent_state *new,
struct extent_state *other)
{
- struct btrfs_root *root = BTRFS_I(inode)->root;
- u64 new_size, old_size;
- u64 num_extents;
-
/* not delalloc, ignore it */
if (!(other->state & EXTENT_DELALLOC))
return 0;
- old_size = other->end - other->start + 1;
- if (new->start < other->start)
- new_size = other->end - new->start + 1;
- else
- new_size = new->end - other->start + 1;
-
- /* we're not bigger than the max, unreserve the space and go */
- if (new_size <= root->fs_info->max_extent) {
- spin_lock(&BTRFS_I(inode)->accounting_lock);
- BTRFS_I(inode)->outstanding_extents--;
- spin_unlock(&BTRFS_I(inode)->accounting_lock);
- return 0;
- }
-
- /*
- * If we grew by another max_extent, just return, we want to keep that
- * reserved amount.
- */
- num_extents = div64_u64(old_size + root->fs_info->max_extent - 1,
- root->fs_info->max_extent);
- if (div64_u64(new_size + root->fs_info->max_extent - 1,
- root->fs_info->max_extent) > num_extents)
- return 0;
-
spin_lock(&BTRFS_I(inode)->accounting_lock);
BTRFS_I(inode)->outstanding_extents--;
spin_unlock(&BTRFS_I(inode)->accounting_lock);
@@ -1328,6 +1280,7 @@ static int btrfs_set_bit_hook(struct inode *inode, u64 start, u64 end,
BTRFS_I(inode)->outstanding_extents++;
spin_unlock(&BTRFS_I(inode)->accounting_lock);
btrfs_delalloc_reserve_space(root, inode, end - start + 1);
+
spin_lock(&root->fs_info->delalloc_lock);
BTRFS_I(inode)->delalloc_bytes += end - start + 1;
root->fs_info->delalloc_bytes += end - start + 1;
@@ -1356,6 +1309,7 @@ static int btrfs_clear_bit_hook(struct inode *inode,
if (bits & EXTENT_DO_ACCOUNTING) {
spin_lock(&BTRFS_I(inode)->accounting_lock);
+ WARN_ON(!BTRFS_I(inode)->outstanding_extents);
BTRFS_I(inode)->outstanding_extents--;
spin_unlock(&BTRFS_I(inode)->accounting_lock);
btrfs_unreserve_metadata_for_delalloc(root, inode, 1);
@@ -5384,7 +5338,6 @@ free:
void btrfs_drop_inode(struct inode *inode)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
-
if (inode->i_nlink > 0 && btrfs_root_refs(&root->root_item) == 0)
generic_delete_inode(inode);
else
@@ -5788,18 +5741,15 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end,
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_key ins;
- u64 alloc_size;
u64 cur_offset = start;
u64 num_bytes = end - start;
int ret = 0;
u64 i_size;
while (num_bytes > 0) {
- alloc_size = min(num_bytes, root->fs_info->max_extent);
-
trans = btrfs_start_transaction(root, 1);
- ret = btrfs_reserve_extent(trans, root, alloc_size,
+ ret = btrfs_reserve_extent(trans, root, num_bytes,
root->sectorsize, 0, alloc_hint,
(u64)-1, &ins, 1);
if (ret) {
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 2845c6ceecd2..e84ef60ffe35 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -39,6 +39,7 @@
#include <linux/security.h>
#include <linux/xattr.h>
#include <linux/vmalloc.h>
+#include <linux/slab.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
@@ -48,7 +49,6 @@
#include "print-tree.h"
#include "volumes.h"
#include "locking.h"
-#include "ctree.h"
/* Mask out flags that are inappropriate for the given type of inode. */
static inline __u32 btrfs_mask_flags(umode_t mode, __u32 flags)
@@ -511,7 +511,7 @@ static int should_defrag_range(struct inode *inode, u64 start, u64 len,
em = btrfs_get_extent(inode, NULL, 0, start, len, 0);
unlock_extent(io_tree, start, start + len - 1, GFP_NOFS);
- if (!em)
+ if (IS_ERR(em))
return 0;
}
@@ -1212,6 +1212,9 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file,
return -EPERM;
args = kmalloc(sizeof(*args), GFP_KERNEL);
+ if (!args)
+ return -ENOMEM;
+
if (copy_from_user(args, argp, sizeof(*args))) {
kfree(args);
return -EFAULT;
@@ -1375,6 +1378,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
sizeof(*range))) {
ret = -EFAULT;
kfree(range);
+ goto out;
}
/* compression requires us to start the IO */
if ((range->flags & BTRFS_DEFRAG_RANGE_COMPRESS)) {
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c
index 1c36e5cd8f55..6151f2ea38bb 100644
--- a/fs/btrfs/locking.c
+++ b/fs/btrfs/locking.c
@@ -16,7 +16,6 @@
* Boston, MA 021110-1307, USA.
*/
#include <linux/sched.h>
-#include <linux/gfp.h>
#include <linux/pagemap.h>
#include <linux/spinlock.h>
#include <linux/page-flags.h>
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index a8ffecd0b491..a127c0ebb2dc 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -16,7 +16,6 @@
* Boston, MA 021110-1307, USA.
*/
-#include <linux/gfp.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/writeback.h>
@@ -303,6 +302,7 @@ static int __btrfs_remove_ordered_extent(struct inode *inode,
struct btrfs_ordered_extent *entry)
{
struct btrfs_ordered_inode_tree *tree;
+ struct btrfs_root *root = BTRFS_I(inode)->root;
struct rb_node *node;
tree = &BTRFS_I(inode)->ordered_tree;
@@ -312,12 +312,13 @@ static int __btrfs_remove_ordered_extent(struct inode *inode,
set_bit(BTRFS_ORDERED_COMPLETE, &entry->flags);
spin_lock(&BTRFS_I(inode)->accounting_lock);
+ WARN_ON(!BTRFS_I(inode)->outstanding_extents);
BTRFS_I(inode)->outstanding_extents--;
spin_unlock(&BTRFS_I(inode)->accounting_lock);
btrfs_unreserve_metadata_for_delalloc(BTRFS_I(inode)->root,
inode, 1);
- spin_lock(&BTRFS_I(inode)->root->fs_info->ordered_extent_lock);
+ spin_lock(&root->fs_info->ordered_extent_lock);
list_del_init(&entry->root_extent_list);
/*
@@ -329,7 +330,7 @@ static int __btrfs_remove_ordered_extent(struct inode *inode,
!mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY)) {
list_del_init(&BTRFS_I(inode)->ordered_operations);
}
- spin_unlock(&BTRFS_I(inode)->root->fs_info->ordered_extent_lock);
+ spin_unlock(&root->fs_info->ordered_extent_lock);
return 0;
}
diff --git a/fs/btrfs/ref-cache.c b/fs/btrfs/ref-cache.c
index d0cc62bccb94..a97314cf6bd6 100644
--- a/fs/btrfs/ref-cache.c
+++ b/fs/btrfs/ref-cache.c
@@ -17,6 +17,7 @@
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/sort.h>
#include "ctree.h"
#include "ref-cache.h"
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 0b23942cbc0d..e558dd941ded 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -21,6 +21,7 @@
#include <linux/writeback.h>
#include <linux/blkdev.h>
#include <linux/rbtree.h>
+#include <linux/slab.h>
#include "ctree.h"
#include "disk-io.h"
#include "transaction.h"
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 9ac612e6ca60..1866dff0538e 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -38,6 +38,7 @@
#include <linux/namei.h>
#include <linux/miscdevice.h>
#include <linux/magic.h>
+#include <linux/slab.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
@@ -64,10 +65,9 @@ static void btrfs_put_super(struct super_block *sb)
enum {
Opt_degraded, Opt_subvol, Opt_subvolid, Opt_device, Opt_nodatasum,
- Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start,
- Opt_nobarrier, Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool,
- Opt_noacl, Opt_compress, Opt_compress_force, Opt_notreelog, Opt_ratio,
- Opt_flushoncommit,
+ Opt_nodatacow, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd,
+ Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, Opt_compress,
+ Opt_compress_force, Opt_notreelog, Opt_ratio, Opt_flushoncommit,
Opt_discard, Opt_err,
};
@@ -79,7 +79,6 @@ static match_table_t tokens = {
{Opt_nodatasum, "nodatasum"},
{Opt_nodatacow, "nodatacow"},
{Opt_nobarrier, "nobarrier"},
- {Opt_max_extent, "max_extent=%s"},
{Opt_max_inline, "max_inline=%s"},
{Opt_alloc_start, "alloc_start=%s"},
{Opt_thread_pool, "thread_pool=%d"},
@@ -188,18 +187,6 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
info->thread_pool_size);
}
break;
- case Opt_max_extent:
- num = match_strdup(&args[0]);
- if (num) {
- info->max_extent = memparse(num, NULL);
- kfree(num);
-
- info->max_extent = max_t(u64,
- info->max_extent, root->sectorsize);
- printk(KERN_INFO "btrfs: max_extent at %llu\n",
- (unsigned long long)info->max_extent);
- }
- break;
case Opt_max_inline:
num = match_strdup(&args[0]);
if (num) {
@@ -529,9 +516,6 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_puts(seq, ",nodatacow");
if (btrfs_test_opt(root, NOBARRIER))
seq_puts(seq, ",nobarrier");
- if (info->max_extent != (u64)-1)
- seq_printf(seq, ",max_extent=%llu",
- (unsigned long long)info->max_extent);
if (info->max_inline != 8192 * 1024)
seq_printf(seq, ",max_inline=%llu",
(unsigned long long)info->max_inline);
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 2d654c1c794d..2cb116099b90 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -17,6 +17,7 @@
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/writeback.h>
#include <linux/pagemap.h>
@@ -147,18 +148,13 @@ static void wait_current_trans(struct btrfs_root *root)
while (1) {
prepare_to_wait(&root->fs_info->transaction_wait, &wait,
TASK_UNINTERRUPTIBLE);
- if (cur_trans->blocked) {
- mutex_unlock(&root->fs_info->trans_mutex);
- schedule();
- mutex_lock(&root->fs_info->trans_mutex);
- finish_wait(&root->fs_info->transaction_wait,
- &wait);
- } else {
- finish_wait(&root->fs_info->transaction_wait,
- &wait);
+ if (!cur_trans->blocked)
break;
- }
+ mutex_unlock(&root->fs_info->trans_mutex);
+ schedule();
+ mutex_lock(&root->fs_info->trans_mutex);
}
+ finish_wait(&root->fs_info->transaction_wait, &wait);
put_transaction(cur_trans);
}
}
@@ -760,10 +756,17 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
struct btrfs_root_item *new_root_item;
struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_root *root = pending->root;
+ struct btrfs_root *parent_root;
+ struct inode *parent_inode;
struct extent_buffer *tmp;
struct extent_buffer *old;
int ret;
u64 objectid;
+ int namelen;
+ u64 index = 0;
+
+ parent_inode = pending->dentry->d_parent->d_inode;
+ parent_root = BTRFS_I(parent_inode)->root;
new_root_item = kmalloc(sizeof(*new_root_item), GFP_NOFS);
if (!new_root_item) {
@@ -774,79 +777,59 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
if (ret)
goto fail;
- record_root_in_trans(trans, root);
- btrfs_set_root_last_snapshot(&root->root_item, trans->transid);
- memcpy(new_root_item, &root->root_item, sizeof(*new_root_item));
-
key.objectid = objectid;
/* record when the snapshot was created in key.offset */
key.offset = trans->transid;
btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY);
- old = btrfs_lock_root_node(root);
- btrfs_cow_block(trans, root, old, NULL, 0, &old);
- btrfs_set_lock_blocking(old);
-
- btrfs_copy_root(trans, root, old, &tmp, objectid);
- btrfs_tree_unlock(old);
- free_extent_buffer(old);
-
- btrfs_set_root_node(new_root_item, tmp);
- ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key,
- new_root_item);
- btrfs_tree_unlock(tmp);
- free_extent_buffer(tmp);
- if (ret)
- goto fail;
-
- key.offset = (u64)-1;
memcpy(&pending->root_key, &key, sizeof(key));
-fail:
- kfree(new_root_item);
- return ret;
-}
-
-static noinline int finish_pending_snapshot(struct btrfs_fs_info *fs_info,
- struct btrfs_pending_snapshot *pending)
-{
- int ret;
- int namelen;
- u64 index = 0;
- struct btrfs_trans_handle *trans;
- struct inode *parent_inode;
- struct btrfs_root *parent_root;
-
- parent_inode = pending->dentry->d_parent->d_inode;
- parent_root = BTRFS_I(parent_inode)->root;
- trans = btrfs_join_transaction(parent_root, 1);
+ pending->root_key.offset = (u64)-1;
+ record_root_in_trans(trans, parent_root);
/*
* insert the directory item
*/
namelen = strlen(pending->name);
ret = btrfs_set_inode_index(parent_inode, &index);
+ BUG_ON(ret);
ret = btrfs_insert_dir_item(trans, parent_root,
pending->name, namelen,
parent_inode->i_ino,
&pending->root_key, BTRFS_FT_DIR, index);
-
- if (ret)
- goto fail;
+ BUG_ON(ret);
btrfs_i_size_write(parent_inode, parent_inode->i_size + namelen * 2);
ret = btrfs_update_inode(trans, parent_root, parent_inode);
BUG_ON(ret);
+ record_root_in_trans(trans, root);
+ btrfs_set_root_last_snapshot(&root->root_item, trans->transid);
+ memcpy(new_root_item, &root->root_item, sizeof(*new_root_item));
+
+ old = btrfs_lock_root_node(root);
+ btrfs_cow_block(trans, root, old, NULL, 0, &old);
+ btrfs_set_lock_blocking(old);
+
+ btrfs_copy_root(trans, root, old, &tmp, objectid);
+ btrfs_tree_unlock(old);
+ free_extent_buffer(old);
+
+ btrfs_set_root_node(new_root_item, tmp);
+ ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key,
+ new_root_item);
+ BUG_ON(ret);
+ btrfs_tree_unlock(tmp);
+ free_extent_buffer(tmp);
+
ret = btrfs_add_root_ref(trans, parent_root->fs_info->tree_root,
pending->root_key.objectid,
parent_root->root_key.objectid,
parent_inode->i_ino, index, pending->name,
namelen);
-
BUG_ON(ret);
fail:
- btrfs_end_transaction(trans, fs_info->fs_root);
+ kfree(new_root_item);
return ret;
}
@@ -867,25 +850,6 @@ static noinline int create_pending_snapshots(struct btrfs_trans_handle *trans,
return 0;
}
-static noinline int finish_pending_snapshots(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info)
-{
- struct btrfs_pending_snapshot *pending;
- struct list_head *head = &trans->transaction->pending_snapshots;
- int ret;
-
- while (!list_empty(head)) {
- pending = list_entry(head->next,
- struct btrfs_pending_snapshot, list);
- ret = finish_pending_snapshot(fs_info, pending);
- BUG_ON(ret);
- list_del(&pending->list);
- kfree(pending->name);
- kfree(pending);
- }
- return 0;
-}
-
static void update_super_roots(struct btrfs_root *root)
{
struct btrfs_root_item *root_item;
@@ -1097,9 +1061,6 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
btrfs_finish_extent_commit(trans, root);
- /* do the directory inserts of any pending snapshot creations */
- finish_pending_snapshots(trans, root->fs_info);
-
mutex_lock(&root->fs_info->trans_mutex);
cur_trans->commit_done = 1;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 1255fcc8ade5..af57dd2b43d4 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -17,6 +17,7 @@
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include "ctree.h"
#include "transaction.h"
#include "disk-io.h"
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9df8e3f1ccab..8db7b14bbae8 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -17,6 +17,7 @@
*/
#include <linux/sched.h>
#include <linux/bio.h>
+#include <linux/slab.h>
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
#include <linux/random.h>
@@ -2198,9 +2199,9 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
min_stripes = 2;
}
if (type & (BTRFS_BLOCK_GROUP_RAID1)) {
- num_stripes = min_t(u64, 2, fs_devices->rw_devices);
- if (num_stripes < 2)
+ if (fs_devices->rw_devices < 2)
return -ENOSPC;
+ num_stripes = 2;
min_stripes = 2;
}
if (type & (BTRFS_BLOCK_GROUP_RAID10)) {
@@ -2244,8 +2245,16 @@ again:
do_div(calc_size, stripe_len);
calc_size *= stripe_len;
}
+
/* we don't want tiny stripes */
- calc_size = max_t(u64, min_stripe_size, calc_size);
+ if (!looped)
+ calc_size = max_t(u64, min_stripe_size, calc_size);
+
+ /*
+ * we're about to do_div by the stripe_len so lets make sure
+ * we end up with something bigger than a stripe
+ */
+ calc_size = max_t(u64, calc_size, stripe_len * 4);
do_div(calc_size, stripe_len);
calc_size *= stripe_len;
@@ -3389,6 +3398,8 @@ int btrfs_read_chunk_tree(struct btrfs_root *root)
key.type = 0;
again:
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ if (ret < 0)
+ goto error;
while (1) {
leaf = path->nodes[0];
slot = path->slots[0];
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 27089311fbea..37fe101a4e0d 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -9,6 +9,7 @@
* 2 of the Licence, or (at your option) any later version.
*/
+#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/buffer_head.h>
#include "internal.h"
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index eeb4986ea7db..d5db84a1ee0d 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -19,6 +19,7 @@
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/security.h>
+#include <linux/slab.h>
#include "internal.h"
#define CACHEFILES_KEYBUF_SIZE 512
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 1d8332563863..0f0d41fbb03f 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -10,6 +10,7 @@
*/
#include <linux/mount.h>
+#include <linux/slab.h>
#include <linux/file.h>
#include "internal.h"
diff --git a/fs/cachefiles/xattr.c b/fs/cachefiles/xattr.c
index f3e7a0bf068b..e18b183b47e1 100644
--- a/fs/cachefiles/xattr.c
+++ b/fs/cachefiles/xattr.c
@@ -16,6 +16,7 @@
#include <linux/fsnotify.h>
#include <linux/quotaops.h>
#include <linux/xattr.h>
+#include <linux/slab.h>
#include "internal.h"
static const char cachefiles_xattr_cache[] =
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 23bb0ceabe31..4b42c2bb603f 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -5,6 +5,7 @@
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/writeback.h> /* generic_writepages */
+#include <linux/slab.h>
#include <linux/pagevec.h>
#include <linux/task_io_accounting_ops.h>
@@ -336,16 +337,15 @@ out:
/*
* Get ref for the oldest snapc for an inode with dirty data... that is, the
* only snap context we are allowed to write back.
- *
- * Caller holds i_lock.
*/
-static struct ceph_snap_context *__get_oldest_context(struct inode *inode,
- u64 *snap_size)
+static struct ceph_snap_context *get_oldest_context(struct inode *inode,
+ u64 *snap_size)
{
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_snap_context *snapc = NULL;
struct ceph_cap_snap *capsnap = NULL;
+ spin_lock(&inode->i_lock);
list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
dout(" cap_snap %p snapc %p has %d dirty pages\n", capsnap,
capsnap->context, capsnap->dirty_pages);
@@ -356,21 +356,11 @@ static struct ceph_snap_context *__get_oldest_context(struct inode *inode,
break;
}
}
- if (!snapc && ci->i_snap_realm) {
- snapc = ceph_get_snap_context(ci->i_snap_realm->cached_context);
+ if (!snapc && ci->i_head_snapc) {
+ snapc = ceph_get_snap_context(ci->i_head_snapc);
dout(" head snapc %p has %d dirty pages\n",
snapc, ci->i_wrbuffer_ref_head);
}
- return snapc;
-}
-
-static struct ceph_snap_context *get_oldest_context(struct inode *inode,
- u64 *snap_size)
-{
- struct ceph_snap_context *snapc = NULL;
-
- spin_lock(&inode->i_lock);
- snapc = __get_oldest_context(inode, snap_size);
spin_unlock(&inode->i_lock);
return snapc;
}
@@ -391,7 +381,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
int len = PAGE_CACHE_SIZE;
loff_t i_size;
int err = 0;
- struct ceph_snap_context *snapc;
+ struct ceph_snap_context *snapc, *oldest;
u64 snap_size = 0;
long writeback_stat;
@@ -412,13 +402,16 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
dout("writepage %p page %p not dirty?\n", inode, page);
goto out;
}
- if (snapc != get_oldest_context(inode, &snap_size)) {
+ oldest = get_oldest_context(inode, &snap_size);
+ if (snapc->seq > oldest->seq) {
dout("writepage %p page %p snapc %p not writeable - noop\n",
inode, page, (void *)page->private);
/* we should only noop if called by kswapd */
WARN_ON((current->flags & PF_MEMALLOC) == 0);
+ ceph_put_snap_context(oldest);
goto out;
}
+ ceph_put_snap_context(oldest);
/* is this a partial page at end of file? */
if (snap_size)
@@ -457,7 +450,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
ClearPagePrivate(page);
end_page_writeback(page);
ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
- ceph_put_snap_context(snapc);
+ ceph_put_snap_context(snapc); /* page's reference */
out:
return err;
}
@@ -516,7 +509,7 @@ static void writepages_finish(struct ceph_osd_request *req,
u64 bytes = 0;
struct ceph_client *client = ceph_inode_to_client(inode);
long writeback_stat;
- unsigned issued = __ceph_caps_issued(ci, NULL);
+ unsigned issued = ceph_caps_issued(ci);
/* parse reply */
replyhead = msg->front.iov_base;
@@ -557,9 +550,9 @@ static void writepages_finish(struct ceph_osd_request *req,
dout("inode %p skipping page %p\n", inode, page);
wbc->pages_skipped++;
}
+ ceph_put_snap_context((void *)page->private);
page->private = 0;
ClearPagePrivate(page);
- ceph_put_snap_context(snapc);
dout("unlocking %d %p\n", i, page);
end_page_writeback(page);
@@ -617,7 +610,7 @@ static int ceph_writepages_start(struct address_space *mapping,
int range_whole = 0;
int should_loop = 1;
pgoff_t max_pages = 0, max_pages_ever = 0;
- struct ceph_snap_context *snapc = NULL, *last_snapc = NULL;
+ struct ceph_snap_context *snapc = NULL, *last_snapc = NULL, *pgsnapc;
struct pagevec pvec;
int done = 0;
int rc = 0;
@@ -769,9 +762,10 @@ get_more_pages:
}
/* only if matching snap context */
- if (snapc != (void *)page->private) {
- dout("page snapc %p != oldest %p\n",
- (void *)page->private, snapc);
+ pgsnapc = (void *)page->private;
+ if (pgsnapc->seq > snapc->seq) {
+ dout("page snapc %p %lld > oldest %p %lld\n",
+ pgsnapc, pgsnapc->seq, snapc, snapc->seq);
unlock_page(page);
if (!locked_pages)
continue; /* keep looking for snap */
@@ -913,12 +907,19 @@ static int context_is_writeable_or_written(struct inode *inode,
struct ceph_snap_context *snapc)
{
struct ceph_snap_context *oldest = get_oldest_context(inode, NULL);
- return !oldest || snapc->seq <= oldest->seq;
+ int ret = !oldest || snapc->seq <= oldest->seq;
+
+ ceph_put_snap_context(oldest);
+ return ret;
}
/*
* We are only allowed to write into/dirty the page if the page is
* clean, or already dirty within the same snap context.
+ *
+ * called with page locked.
+ * return success with page locked,
+ * or any failure (incl -EAGAIN) with page unlocked.
*/
static int ceph_update_writeable_page(struct file *file,
loff_t pos, unsigned len,
@@ -931,8 +932,8 @@ static int ceph_update_writeable_page(struct file *file,
int pos_in_page = pos & ~PAGE_CACHE_MASK;
int end_in_page = pos_in_page + len;
loff_t i_size;
- struct ceph_snap_context *snapc;
int r;
+ struct ceph_snap_context *snapc, *oldest;
retry_locked:
/* writepages currently holds page lock, but if we change that later, */
@@ -942,30 +943,34 @@ retry_locked:
BUG_ON(!ci->i_snap_realm);
down_read(&mdsc->snap_rwsem);
BUG_ON(!ci->i_snap_realm->cached_context);
- if (page->private &&
- (void *)page->private != ci->i_snap_realm->cached_context) {
+ snapc = (void *)page->private;
+ if (snapc && snapc != ci->i_head_snapc) {
/*
* this page is already dirty in another (older) snap
* context! is it writeable now?
*/
- snapc = get_oldest_context(inode, NULL);
+ oldest = get_oldest_context(inode, NULL);
up_read(&mdsc->snap_rwsem);
- if (snapc != (void *)page->private) {
+ if (snapc->seq > oldest->seq) {
+ ceph_put_snap_context(oldest);
dout(" page %p snapc %p not current or oldest\n",
- page, (void *)page->private);
+ page, snapc);
/*
* queue for writeback, and wait for snapc to
* be writeable or written
*/
- snapc = ceph_get_snap_context((void *)page->private);
+ snapc = ceph_get_snap_context(snapc);
unlock_page(page);
ceph_queue_writeback(inode);
- wait_event_interruptible(ci->i_cap_wq,
+ r = wait_event_interruptible(ci->i_cap_wq,
context_is_writeable_or_written(inode, snapc));
ceph_put_snap_context(snapc);
+ if (r == -ERESTARTSYS)
+ return r;
return -EAGAIN;
}
+ ceph_put_snap_context(oldest);
/* yay, writeable, do it now (without dropping page lock) */
dout(" page %p snapc %p not current, but oldest\n",
@@ -1035,7 +1040,7 @@ static int ceph_write_begin(struct file *file, struct address_space *mapping,
int r;
do {
- /* get a page*/
+ /* get a page */
page = grab_cache_page_write_begin(mapping, index, 0);
if (!page)
return -ENOMEM;
diff --git a/fs/ceph/auth.c b/fs/ceph/auth.c
index abb204fea6c7..818afe72e6c7 100644
--- a/fs/ceph/auth.c
+++ b/fs/ceph/auth.c
@@ -1,7 +1,9 @@
#include "ceph_debug.h"
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/err.h>
+#include <linux/slab.h>
#include "types.h"
#include "auth_none.h"
diff --git a/fs/ceph/auth_none.c b/fs/ceph/auth_none.c
index b4ef6f0a6c85..8cd9e3af07f7 100644
--- a/fs/ceph/auth_none.c
+++ b/fs/ceph/auth_none.c
@@ -4,6 +4,7 @@
#include <linux/err.h>
#include <linux/module.h>
#include <linux/random.h>
+#include <linux/slab.h>
#include "auth_none.h"
#include "auth.h"
diff --git a/fs/ceph/auth_none.h b/fs/ceph/auth_none.h
index 56c05533a31c..8164df1a08be 100644
--- a/fs/ceph/auth_none.h
+++ b/fs/ceph/auth_none.h
@@ -1,6 +1,8 @@
#ifndef _FS_CEPH_AUTH_NONE_H
#define _FS_CEPH_AUTH_NONE_H
+#include <linux/slab.h>
+
#include "auth.h"
/*
diff --git a/fs/ceph/auth_x.c b/fs/ceph/auth_x.c
index f0318427b6da..fee5a08da881 100644
--- a/fs/ceph/auth_x.c
+++ b/fs/ceph/auth_x.c
@@ -4,6 +4,7 @@
#include <linux/err.h>
#include <linux/module.h>
#include <linux/random.h>
+#include <linux/slab.h>
#include "auth_x.h"
#include "auth_x_protocol.h"
@@ -11,8 +12,6 @@
#include "auth.h"
#include "decode.h"
-struct kmem_cache *ceph_x_ticketbuf_cachep;
-
#define TEMP_TICKET_BUF_LEN 256
static void ceph_x_validate_tickets(struct ceph_auth_client *ac, int *pneed);
@@ -28,6 +27,12 @@ static int ceph_x_is_authenticated(struct ceph_auth_client *ac)
return (ac->want_keys & xi->have_keys) == ac->want_keys;
}
+static int ceph_x_encrypt_buflen(int ilen)
+{
+ return sizeof(struct ceph_x_encrypt_header) + ilen + 16 +
+ sizeof(u32);
+}
+
static int ceph_x_encrypt(struct ceph_crypto_key *secret,
void *ibuf, int ilen, void *obuf, size_t olen)
{
@@ -124,13 +129,12 @@ static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
char *ticket_buf;
u8 struct_v;
- dbuf = kmem_cache_alloc(ceph_x_ticketbuf_cachep, GFP_NOFS | GFP_ATOMIC);
+ dbuf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!dbuf)
return -ENOMEM;
ret = -ENOMEM;
- ticket_buf = kmem_cache_alloc(ceph_x_ticketbuf_cachep,
- GFP_NOFS | GFP_ATOMIC);
+ ticket_buf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!ticket_buf)
goto out_dbuf;
@@ -150,6 +154,11 @@ static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
struct timespec validity;
struct ceph_crypto_key old_key;
void *tp, *tpend;
+ struct ceph_timespec new_validity;
+ struct ceph_crypto_key new_session_key;
+ struct ceph_buffer *new_ticket_blob;
+ unsigned long new_expires, new_renew_after;
+ u64 new_secret_id;
ceph_decode_need(&p, end, sizeof(u32) + 1, bad);
@@ -182,16 +191,16 @@ static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
goto bad;
memcpy(&old_key, &th->session_key, sizeof(old_key));
- ret = ceph_crypto_key_decode(&th->session_key, &dp, dend);
+ ret = ceph_crypto_key_decode(&new_session_key, &dp, dend);
if (ret)
goto out;
- ceph_decode_copy(&dp, &th->validity, sizeof(th->validity));
- ceph_decode_timespec(&validity, &th->validity);
- th->expires = get_seconds() + validity.tv_sec;
- th->renew_after = th->expires - (validity.tv_sec / 4);
- dout(" expires=%lu renew_after=%lu\n", th->expires,
- th->renew_after);
+ ceph_decode_copy(&dp, &new_validity, sizeof(new_validity));
+ ceph_decode_timespec(&validity, &new_validity);
+ new_expires = get_seconds() + validity.tv_sec;
+ new_renew_after = new_expires - (validity.tv_sec / 4);
+ dout(" expires=%lu renew_after=%lu\n", new_expires,
+ new_renew_after);
/* ticket blob for service */
ceph_decode_8_safe(&p, end, is_enc, bad);
@@ -216,10 +225,21 @@ static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
dout(" ticket blob is %d bytes\n", dlen);
ceph_decode_need(&tp, tpend, 1 + sizeof(u64), bad);
struct_v = ceph_decode_8(&tp);
- th->secret_id = ceph_decode_64(&tp);
- ret = ceph_decode_buffer(&th->ticket_blob, &tp, tpend);
+ new_secret_id = ceph_decode_64(&tp);
+ ret = ceph_decode_buffer(&new_ticket_blob, &tp, tpend);
if (ret)
goto out;
+
+ /* all is well, update our ticket */
+ ceph_crypto_key_destroy(&th->session_key);
+ if (th->ticket_blob)
+ ceph_buffer_put(th->ticket_blob);
+ th->session_key = new_session_key;
+ th->ticket_blob = new_ticket_blob;
+ th->validity = new_validity;
+ th->secret_id = new_secret_id;
+ th->expires = new_expires;
+ th->renew_after = new_renew_after;
dout(" got ticket service %d (%s) secret_id %lld len %d\n",
type, ceph_entity_type_name(type), th->secret_id,
(int)th->ticket_blob->vec.iov_len);
@@ -228,9 +248,9 @@ static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
ret = 0;
out:
- kmem_cache_free(ceph_x_ticketbuf_cachep, ticket_buf);
+ kfree(ticket_buf);
out_dbuf:
- kmem_cache_free(ceph_x_ticketbuf_cachep, dbuf);
+ kfree(dbuf);
return ret;
bad:
@@ -242,7 +262,7 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac,
struct ceph_x_ticket_handler *th,
struct ceph_x_authorizer *au)
{
- int len;
+ int maxlen;
struct ceph_x_authorize_a *msg_a;
struct ceph_x_authorize_b msg_b;
void *p, *end;
@@ -253,15 +273,15 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac,
dout("build_authorizer for %s %p\n",
ceph_entity_type_name(th->service), au);
- len = sizeof(*msg_a) + sizeof(msg_b) + sizeof(u32) +
- ticket_blob_len + 16;
- dout(" need len %d\n", len);
- if (au->buf && au->buf->alloc_len < len) {
+ maxlen = sizeof(*msg_a) + sizeof(msg_b) +
+ ceph_x_encrypt_buflen(ticket_blob_len);
+ dout(" need len %d\n", maxlen);
+ if (au->buf && au->buf->alloc_len < maxlen) {
ceph_buffer_put(au->buf);
au->buf = NULL;
}
if (!au->buf) {
- au->buf = ceph_buffer_new(len, GFP_NOFS);
+ au->buf = ceph_buffer_new(maxlen, GFP_NOFS);
if (!au->buf)
return -ENOMEM;
}
@@ -296,6 +316,7 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac,
au->buf->vec.iov_len = p - au->buf->vec.iov_base;
dout(" built authorizer nonce %llx len %d\n", au->nonce,
(int)au->buf->vec.iov_len);
+ BUG_ON(au->buf->vec.iov_len > maxlen);
return 0;
out_buf:
@@ -581,8 +602,6 @@ static void ceph_x_destroy(struct ceph_auth_client *ac)
remove_ticket_handler(ac, th);
}
- kmem_cache_destroy(ceph_x_ticketbuf_cachep);
-
kfree(ac->private);
ac->private = NULL;
}
@@ -617,26 +636,20 @@ int ceph_x_init(struct ceph_auth_client *ac)
int ret;
dout("ceph_x_init %p\n", ac);
+ ret = -ENOMEM;
xi = kzalloc(sizeof(*xi), GFP_NOFS);
if (!xi)
- return -ENOMEM;
+ goto out;
- ret = -ENOMEM;
- ceph_x_ticketbuf_cachep = kmem_cache_create("ceph_x_ticketbuf",
- TEMP_TICKET_BUF_LEN, 8,
- (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD),
- NULL);
- if (!ceph_x_ticketbuf_cachep)
- goto done_nomem;
ret = -EINVAL;
if (!ac->secret) {
pr_err("no secret set (for auth_x protocol)\n");
- goto done_nomem;
+ goto out_nomem;
}
ret = ceph_crypto_key_unarmor(&xi->secret, ac->secret);
if (ret)
- goto done_nomem;
+ goto out_nomem;
xi->starting = true;
xi->ticket_handlers = RB_ROOT;
@@ -646,10 +659,9 @@ int ceph_x_init(struct ceph_auth_client *ac)
ac->ops = &ceph_x_ops;
return 0;
-done_nomem:
+out_nomem:
kfree(xi);
- if (ceph_x_ticketbuf_cachep)
- kmem_cache_destroy(ceph_x_ticketbuf_cachep);
+out:
return ret;
}
diff --git a/fs/ceph/buffer.c b/fs/ceph/buffer.c
index b98086c7aeba..c67535d70aa6 100644
--- a/fs/ceph/buffer.c
+++ b/fs/ceph/buffer.c
@@ -1,5 +1,8 @@
#include "ceph_debug.h"
+
+#include <linux/slab.h>
+
#include "buffer.h"
#include "decode.h"
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index db122bb357b8..0c1681806867 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -3,6 +3,7 @@
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/wait.h>
#include <linux/writeback.h>
@@ -1204,6 +1205,12 @@ retry:
if (capsnap->dirty_pages || capsnap->writing)
continue;
+ /*
+ * if cap writeback already occurred, we should have dropped
+ * the capsnap in ceph_put_wrbuffer_cap_refs.
+ */
+ BUG_ON(capsnap->dirty == 0);
+
/* pick mds, take s_mutex */
mds = __ceph_get_cap_mds(ci, &mseq);
if (session && session->s_mds != mds) {
@@ -1407,6 +1414,7 @@ static int try_nonblocking_invalidate(struct inode *inode)
*/
void ceph_check_caps(struct ceph_inode_info *ci, int flags,
struct ceph_mds_session *session)
+ __releases(session->s_mutex)
{
struct ceph_client *client = ceph_inode_to_client(&ci->vfs_inode);
struct ceph_mds_client *mdsc = &client->mdsc;
@@ -1414,7 +1422,6 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags,
struct ceph_cap *cap;
int file_wanted, used;
int took_snap_rwsem = 0; /* true if mdsc->snap_rwsem held */
- int drop_session_lock = session ? 0 : 1;
int issued, implemented, want, retain, revoking, flushing = 0;
int mds = -1; /* keep track of how far we've gone through i_caps list
to avoid an infinite loop on retry */
@@ -1639,7 +1646,7 @@ ack:
if (queue_invalidate)
ceph_queue_invalidate(inode);
- if (session && drop_session_lock)
+ if (session)
mutex_unlock(&session->s_mutex);
if (took_snap_rwsem)
up_read(&mdsc->snap_rwsem);
@@ -1854,8 +1861,8 @@ static void kick_flushing_capsnaps(struct ceph_mds_client *mdsc,
} else {
pr_err("%p auth cap %p not mds%d ???\n", inode,
cap, session->s_mds);
- spin_unlock(&inode->i_lock);
}
+ spin_unlock(&inode->i_lock);
}
}
@@ -2117,8 +2124,8 @@ void ceph_put_cap_refs(struct ceph_inode_info *ci, int had)
}
spin_unlock(&inode->i_lock);
- dout("put_cap_refs %p had %s %s\n", inode, ceph_cap_string(had),
- last ? "last" : "");
+ dout("put_cap_refs %p had %s%s%s\n", inode, ceph_cap_string(had),
+ last ? " last" : "", put ? " put" : "");
if (last && !flushsnaps)
ceph_check_caps(ci, 0, NULL);
@@ -2142,7 +2149,8 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
{
struct inode *inode = &ci->vfs_inode;
int last = 0;
- int last_snap = 0;
+ int complete_capsnap = 0;
+ int drop_capsnap = 0;
int found = 0;
struct ceph_cap_snap *capsnap = NULL;
@@ -2165,19 +2173,32 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) {
if (capsnap->context == snapc) {
found = 1;
- capsnap->dirty_pages -= nr;
- last_snap = !capsnap->dirty_pages;
break;
}
}
BUG_ON(!found);
+ capsnap->dirty_pages -= nr;
+ if (capsnap->dirty_pages == 0) {
+ complete_capsnap = 1;
+ if (capsnap->dirty == 0)
+ /* cap writeback completed before we created
+ * the cap_snap; no FLUSHSNAP is needed */
+ drop_capsnap = 1;
+ }
dout("put_wrbuffer_cap_refs on %p cap_snap %p "
- " snap %lld %d/%d -> %d/%d %s%s\n",
+ " snap %lld %d/%d -> %d/%d %s%s%s\n",
inode, capsnap, capsnap->context->seq,
ci->i_wrbuffer_ref+nr, capsnap->dirty_pages + nr,
ci->i_wrbuffer_ref, capsnap->dirty_pages,
last ? " (wrbuffer last)" : "",
- last_snap ? " (capsnap last)" : "");
+ complete_capsnap ? " (complete capsnap)" : "",
+ drop_capsnap ? " (drop capsnap)" : "");
+ if (drop_capsnap) {
+ ceph_put_snap_context(capsnap->context);
+ list_del(&capsnap->ci_item);
+ list_del(&capsnap->flushing_item);
+ ceph_put_cap_snap(capsnap);
+ }
}
spin_unlock(&inode->i_lock);
@@ -2185,28 +2206,31 @@ void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
if (last) {
ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
iput(inode);
- } else if (last_snap) {
+ } else if (complete_capsnap) {
ceph_flush_snaps(ci);
wake_up(&ci->i_cap_wq);
}
+ if (drop_capsnap)
+ iput(inode);
}
/*
* Handle a cap GRANT message from the MDS. (Note that a GRANT may
* actually be a revocation if it specifies a smaller cap set.)
*
- * caller holds s_mutex.
+ * caller holds s_mutex and i_lock, we drop both.
+ *
* return value:
* 0 - ok
* 1 - check_caps on auth cap only (writeback)
* 2 - check_caps (ack revoke)
*/
-static int handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
- struct ceph_mds_session *session,
- struct ceph_cap *cap,
- struct ceph_buffer *xattr_buf)
+static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
+ struct ceph_mds_session *session,
+ struct ceph_cap *cap,
+ struct ceph_buffer *xattr_buf)
__releases(inode->i_lock)
-
+ __releases(session->s_mutex)
{
struct ceph_inode_info *ci = ceph_inode(inode);
int mds = session->s_mds;
@@ -2216,7 +2240,7 @@ static int handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
u64 size = le64_to_cpu(grant->size);
u64 max_size = le64_to_cpu(grant->max_size);
struct timespec mtime, atime, ctime;
- int reply = 0;
+ int check_caps = 0;
int wake = 0;
int writeback = 0;
int revoked_rdcache = 0;
@@ -2329,11 +2353,12 @@ static int handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
if ((used & ~newcaps) & CEPH_CAP_FILE_BUFFER)
writeback = 1; /* will delay ack */
else if (dirty & ~newcaps)
- reply = 1; /* initiate writeback in check_caps */
+ check_caps = 1; /* initiate writeback in check_caps */
else if (((used & ~newcaps) & CEPH_CAP_FILE_CACHE) == 0 ||
revoked_rdcache)
- reply = 2; /* send revoke ack in check_caps */
+ check_caps = 2; /* send revoke ack in check_caps */
cap->issued = newcaps;
+ cap->implemented |= newcaps;
} else if (cap->issued == newcaps) {
dout("caps unchanged: %s -> %s\n",
ceph_cap_string(cap->issued), ceph_cap_string(newcaps));
@@ -2346,6 +2371,7 @@ static int handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
* pending revocation */
wake = 1;
}
+ BUG_ON(cap->issued & ~cap->implemented);
spin_unlock(&inode->i_lock);
if (writeback)
@@ -2359,7 +2385,14 @@ static int handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
ceph_queue_invalidate(inode);
if (wake)
wake_up(&ci->i_cap_wq);
- return reply;
+
+ if (check_caps == 1)
+ ceph_check_caps(ci, CHECK_CAPS_NODELAY|CHECK_CAPS_AUTHONLY,
+ session);
+ else if (check_caps == 2)
+ ceph_check_caps(ci, CHECK_CAPS_NODELAY, session);
+ else
+ mutex_unlock(&session->s_mutex);
}
/*
@@ -2454,8 +2487,8 @@ static void handle_cap_flushsnap_ack(struct inode *inode, u64 flush_tid,
break;
}
WARN_ON(capsnap->dirty_pages || capsnap->writing);
- dout(" removing cap_snap %p follows %lld\n",
- capsnap, follows);
+ dout(" removing %p cap_snap %p follows %lld\n",
+ inode, capsnap, follows);
ceph_put_snap_context(capsnap->context);
list_del(&capsnap->ci_item);
list_del(&capsnap->flushing_item);
@@ -2548,9 +2581,8 @@ static void handle_cap_export(struct inode *inode, struct ceph_mds_caps *ex,
ci->i_cap_exporting_issued = cap->issued;
}
__ceph_remove_cap(cap);
- } else {
- WARN_ON(!cap);
}
+ /* else, we already released it */
spin_unlock(&inode->i_lock);
}
@@ -2621,9 +2653,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
u64 cap_id;
u64 size, max_size;
u64 tid;
- int check_caps = 0;
void *snaptrace;
- int r;
dout("handle_caps from mds%d\n", mds);
@@ -2668,8 +2698,9 @@ void ceph_handle_caps(struct ceph_mds_session *session,
case CEPH_CAP_OP_IMPORT:
handle_cap_import(mdsc, inode, h, session,
snaptrace, le32_to_cpu(h->snap_trace_len));
- check_caps = 1; /* we may have sent a RELEASE to the old auth */
- goto done;
+ ceph_check_caps(ceph_inode(inode), CHECK_CAPS_NODELAY,
+ session);
+ goto done_unlocked;
}
/* the rest require a cap */
@@ -2686,16 +2717,8 @@ void ceph_handle_caps(struct ceph_mds_session *session,
switch (op) {
case CEPH_CAP_OP_REVOKE:
case CEPH_CAP_OP_GRANT:
- r = handle_cap_grant(inode, h, session, cap, msg->middle);
- if (r == 1)
- ceph_check_caps(ceph_inode(inode),
- CHECK_CAPS_NODELAY|CHECK_CAPS_AUTHONLY,
- session);
- else if (r == 2)
- ceph_check_caps(ceph_inode(inode),
- CHECK_CAPS_NODELAY,
- session);
- break;
+ handle_cap_grant(inode, h, session, cap, msg->middle);
+ goto done_unlocked;
case CEPH_CAP_OP_FLUSH_ACK:
handle_cap_flush_ack(inode, tid, h, session, cap);
@@ -2713,9 +2736,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
done:
mutex_unlock(&session->s_mutex);
-
- if (check_caps)
- ceph_check_caps(ceph_inode(inode), CHECK_CAPS_NODELAY, NULL);
+done_unlocked:
if (inode)
iput(inode);
return;
@@ -2838,11 +2859,18 @@ int ceph_encode_inode_release(void **p, struct inode *inode,
struct ceph_cap *cap;
struct ceph_mds_request_release *rel = *p;
int ret = 0;
-
- dout("encode_inode_release %p mds%d drop %s unless %s\n", inode,
- mds, ceph_cap_string(drop), ceph_cap_string(unless));
+ int used = 0;
spin_lock(&inode->i_lock);
+ used = __ceph_caps_used(ci);
+
+ dout("encode_inode_release %p mds%d used %s drop %s unless %s\n", inode,
+ mds, ceph_cap_string(used), ceph_cap_string(drop),
+ ceph_cap_string(unless));
+
+ /* only drop unused caps */
+ drop &= ~used;
+
cap = __get_cap_for_mds(ci, mds);
if (cap && __cap_is_valid(cap)) {
if (force ||
diff --git a/fs/ceph/crypto.c b/fs/ceph/crypto.c
index 291ac288e791..f704b3b62424 100644
--- a/fs/ceph/crypto.c
+++ b/fs/ceph/crypto.c
@@ -3,6 +3,7 @@
#include <linux/err.h>
#include <linux/scatterlist.h>
+#include <linux/slab.h>
#include <crypto/hash.h>
#include "crypto.h"
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index e159f1415110..f7048da92acc 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -1,6 +1,7 @@
#include "ceph_debug.h"
#include <linux/device.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/debugfs.h>
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 5107384ee029..650d2db5ed26 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -3,6 +3,7 @@
#include <linux/spinlock.h>
#include <linux/fs_struct.h>
#include <linux/namei.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include "super.h"
@@ -170,11 +171,11 @@ more:
spin_lock(&inode->i_lock);
spin_lock(&dcache_lock);
+ last = dentry;
+
if (err < 0)
goto out_unlock;
- last = dentry;
-
p = p->prev;
filp->f_pos++;
@@ -288,8 +289,10 @@ more:
CEPH_MDS_OP_LSSNAP : CEPH_MDS_OP_READDIR;
/* discard old result, if any */
- if (fi->last_readdir)
+ if (fi->last_readdir) {
ceph_mdsc_put_request(fi->last_readdir);
+ fi->last_readdir = NULL;
+ }
/* requery frag tree, as the frag topology may have changed */
frag = ceph_choose_frag(ceph_inode(inode), frag, NULL, NULL);
@@ -309,7 +312,7 @@ more:
req->r_readdir_offset = fi->next_offset;
req->r_args.readdir.frag = cpu_to_le32(frag);
req->r_args.readdir.max_entries = cpu_to_le32(max_entries);
- req->r_num_caps = max_entries;
+ req->r_num_caps = max_entries + 1;
err = ceph_mdsc_do_request(mdsc, NULL, req);
if (err < 0) {
ceph_mdsc_put_request(req);
@@ -486,6 +489,7 @@ struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
struct inode *inode = ceph_get_snapdir(parent);
dout("ENOENT on snapdir %p '%.*s', linking to snapdir %p\n",
dentry, dentry->d_name.len, dentry->d_name.name, inode);
+ BUG_ON(!d_unhashed(dentry));
d_add(dentry, inode);
err = 0;
}
@@ -876,7 +880,16 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
* do_request, above). If there is no trace, we need
* to do it here.
*/
+
+ /* d_move screws up d_subdirs order */
+ ceph_i_clear(new_dir, CEPH_I_COMPLETE);
+
d_move(old_dentry, new_dentry);
+
+ /* ensure target dentry is invalidated, despite
+ rehashing bug in vfs_rename_dir */
+ new_dentry->d_time = jiffies;
+ ceph_dentry(new_dentry)->lease_shared_gen = 0;
}
ceph_mdsc_put_request(req);
return err;
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index fc68e39cbad6..9d67572fb328 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -1,6 +1,7 @@
#include "ceph_debug.h"
#include <linux/exportfs.h>
+#include <linux/slab.h>
#include <asm/unaligned.h>
#include "super.h"
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 5d2af8464f6a..ed6f19721d6e 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1,6 +1,7 @@
#include "ceph_debug.h"
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/file.h>
#include <linux/namei.h>
#include <linux/writeback.h>
@@ -664,7 +665,8 @@ more:
* throw out any page cache pages in this range. this
* may block.
*/
- truncate_inode_pages_range(inode->i_mapping, pos, pos+len);
+ truncate_inode_pages_range(inode->i_mapping, pos,
+ (pos+len) | (PAGE_CACHE_SIZE-1));
} else {
pages = alloc_page_vector(num_pages);
if (IS_ERR(pages)) {
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 7abe1aed819b..261f3e6c0bcf 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -378,6 +378,22 @@ void ceph_destroy_inode(struct inode *inode)
ceph_queue_caps_release(inode);
+ /*
+ * we may still have a snap_realm reference if there are stray
+ * caps in i_cap_exporting_issued or i_snap_caps.
+ */
+ if (ci->i_snap_realm) {
+ struct ceph_mds_client *mdsc =
+ &ceph_client(ci->vfs_inode.i_sb)->mdsc;
+ struct ceph_snap_realm *realm = ci->i_snap_realm;
+
+ dout(" dropping residual ref to snap realm %p\n", realm);
+ spin_lock(&realm->inodes_with_caps_lock);
+ list_del_init(&ci->i_snap_realm_item);
+ spin_unlock(&realm->inodes_with_caps_lock);
+ ceph_put_snap_realm(mdsc, realm);
+ }
+
kfree(ci->i_symlink);
while ((n = rb_first(&ci->i_fragtree)) != NULL) {
frag = rb_entry(n, struct ceph_inode_frag, node);
@@ -870,6 +886,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
struct inode *in = NULL;
struct ceph_mds_reply_inode *ininfo;
struct ceph_vino vino;
+ struct ceph_client *client = ceph_sb_to_client(sb);
int i = 0;
int err = 0;
@@ -933,7 +950,14 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
return err;
}
- if (rinfo->head->is_dentry && !req->r_aborted) {
+ /*
+ * ignore null lease/binding on snapdir ENOENT, or else we
+ * will have trouble splicing in the virtual snapdir later
+ */
+ if (rinfo->head->is_dentry && !req->r_aborted &&
+ (rinfo->head->is_target || strncmp(req->r_dentry->d_name.name,
+ client->mount_args->snapdir_name,
+ req->r_dentry->d_name.len))) {
/*
* lookup link rename : null -> possibly existing inode
* mknod symlink mkdir : null -> new inode
@@ -973,6 +997,10 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
dn, dn->d_name.len, dn->d_name.name);
dout("fill_trace doing d_move %p -> %p\n",
req->r_old_dentry, dn);
+
+ /* d_move screws up d_subdirs order */
+ ceph_i_clear(dir, CEPH_I_COMPLETE);
+
d_move(req->r_old_dentry, dn);
dout(" src %p '%.*s' dst %p '%.*s'\n",
req->r_old_dentry,
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index a2600101ec22..60a9a4ae47be 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1,6 +1,7 @@
#include "ceph_debug.h"
#include <linux/wait.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include "mds_client.h"
@@ -328,6 +329,8 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
struct ceph_mds_session *s;
s = kzalloc(sizeof(*s), GFP_NOFS);
+ if (!s)
+ return ERR_PTR(-ENOMEM);
s->s_mdsc = mdsc;
s->s_mds = mds;
s->s_state = CEPH_MDS_SESSION_NEW;
@@ -529,7 +532,7 @@ static void __unregister_request(struct ceph_mds_client *mdsc,
{
dout("__unregister_request %p tid %lld\n", req, req->r_tid);
rb_erase(&req->r_node, &mdsc->request_tree);
- ceph_mdsc_put_request(req);
+ RB_CLEAR_NODE(&req->r_node);
if (req->r_unsafe_dir) {
struct ceph_inode_info *ci = ceph_inode(req->r_unsafe_dir);
@@ -538,6 +541,8 @@ static void __unregister_request(struct ceph_mds_client *mdsc,
list_del_init(&req->r_unsafe_dir_item);
spin_unlock(&ci->i_unsafe_lock);
}
+
+ ceph_mdsc_put_request(req);
}
/*
@@ -862,6 +867,7 @@ static int send_renew_caps(struct ceph_mds_client *mdsc,
if (time_after_eq(jiffies, session->s_cap_ttl) &&
time_after_eq(session->s_cap_ttl, session->s_renew_requested))
pr_info("mds%d caps stale\n", session->s_mds);
+ session->s_renew_requested = jiffies;
/* do not try to renew caps until a recovering mds has reconnected
* with its clients. */
@@ -874,7 +880,6 @@ static int send_renew_caps(struct ceph_mds_client *mdsc,
dout("send_renew_caps to mds%d (%s)\n", session->s_mds,
ceph_mds_state_name(state));
- session->s_renew_requested = jiffies;
msg = create_session_msg(CEPH_SESSION_REQUEST_RENEWCAPS,
++session->s_renew_seq);
if (IS_ERR(msg))
@@ -1566,8 +1571,13 @@ static int __do_request(struct ceph_mds_client *mdsc,
/* get, open session */
session = __ceph_lookup_mds_session(mdsc, mds);
- if (!session)
+ if (!session) {
session = register_session(mdsc, mds);
+ if (IS_ERR(session)) {
+ err = PTR_ERR(session);
+ goto finish;
+ }
+ }
dout("do_request mds%d session %p state %s\n", mds, session,
session_state_name(session->s_state));
if (session->s_state != CEPH_MDS_SESSION_OPEN &&
@@ -1770,7 +1780,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
dout("handle_reply %p\n", req);
/* correct session? */
- if (!req->r_session && req->r_session != session) {
+ if (req->r_session != session) {
pr_err("mdsc_handle_reply got %llu on session mds%d"
" not mds%d\n", tid, session->s_mds,
req->r_session ? req->r_session->s_mds : -1);
@@ -2682,29 +2692,41 @@ void ceph_mdsc_pre_umount(struct ceph_mds_client *mdsc)
*/
static void wait_unsafe_requests(struct ceph_mds_client *mdsc, u64 want_tid)
{
- struct ceph_mds_request *req = NULL;
+ struct ceph_mds_request *req = NULL, *nextreq;
struct rb_node *n;
mutex_lock(&mdsc->mutex);
dout("wait_unsafe_requests want %lld\n", want_tid);
+restart:
req = __get_oldest_req(mdsc);
while (req && req->r_tid <= want_tid) {
+ /* find next request */
+ n = rb_next(&req->r_node);
+ if (n)
+ nextreq = rb_entry(n, struct ceph_mds_request, r_node);
+ else
+ nextreq = NULL;
if ((req->r_op & CEPH_MDS_OP_WRITE)) {
/* write op */
ceph_mdsc_get_request(req);
+ if (nextreq)
+ ceph_mdsc_get_request(nextreq);
mutex_unlock(&mdsc->mutex);
dout("wait_unsafe_requests wait on %llu (want %llu)\n",
req->r_tid, want_tid);
wait_for_completion(&req->r_safe_completion);
mutex_lock(&mdsc->mutex);
- n = rb_next(&req->r_node);
ceph_mdsc_put_request(req);
- } else {
- n = rb_next(&req->r_node);
+ if (!nextreq)
+ break; /* next dne before, so we're done! */
+ if (RB_EMPTY_NODE(&nextreq->r_node)) {
+ /* next request was removed from tree */
+ ceph_mdsc_put_request(nextreq);
+ goto restart;
+ }
+ ceph_mdsc_put_request(nextreq); /* won't go away */
}
- if (!n)
- break;
- req = rb_entry(n, struct ceph_mds_request, r_node);
+ req = nextreq;
}
mutex_unlock(&mdsc->mutex);
dout("wait_unsafe_requests done\n");
diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index 781656a49bf8..509f57d9ccb3 100644
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -6,6 +6,7 @@
#include <linux/inet.h>
#include <linux/kthread.h>
#include <linux/net.h>
+#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/string.h>
#include <net/tcp.h>
@@ -29,6 +30,10 @@ static char tag_msg = CEPH_MSGR_TAG_MSG;
static char tag_ack = CEPH_MSGR_TAG_ACK;
static char tag_keepalive = CEPH_MSGR_TAG_KEEPALIVE;
+#ifdef CONFIG_LOCKDEP
+static struct lock_class_key socket_class;
+#endif
+
static void queue_con(struct ceph_connection *con);
static void con_work(struct work_struct *);
@@ -227,6 +232,10 @@ static struct socket *ceph_tcp_connect(struct ceph_connection *con)
con->sock = sock;
sock->sk->sk_allocation = GFP_NOFS;
+#ifdef CONFIG_LOCKDEP
+ lockdep_set_class(&sock->sk->sk_lock, &socket_class);
+#endif
+
set_sock_callbacks(sock, con);
dout("connect %s\n", pr_addr(&con->peer_addr.in_addr));
@@ -332,6 +341,7 @@ static void reset_connection(struct ceph_connection *con)
con->out_msg = NULL;
}
con->in_seq = 0;
+ con->in_seq_acked = 0;
}
/*
@@ -366,6 +376,14 @@ void ceph_con_open(struct ceph_connection *con, struct ceph_entity_addr *addr)
}
/*
+ * return true if this connection ever successfully opened
+ */
+bool ceph_con_opened(struct ceph_connection *con)
+{
+ return con->connect_seq > 0;
+}
+
+/*
* generic get/put
*/
struct ceph_connection *ceph_con_get(struct ceph_connection *con)
@@ -830,13 +848,6 @@ static void prepare_read_connect(struct ceph_connection *con)
con->in_base_pos = 0;
}
-static void prepare_read_connect_retry(struct ceph_connection *con)
-{
- dout("prepare_read_connect_retry %p\n", con);
- con->in_base_pos = strlen(CEPH_BANNER) + sizeof(con->actual_peer_addr)
- + sizeof(con->peer_addr_for_me);
-}
-
static void prepare_read_ack(struct ceph_connection *con)
{
dout("prepare_read_ack %p\n", con);
@@ -1146,7 +1157,7 @@ static int process_connect(struct ceph_connection *con)
}
con->auth_retry = 1;
prepare_write_connect(con->msgr, con, 0);
- prepare_read_connect_retry(con);
+ prepare_read_connect(con);
break;
case CEPH_MSGR_TAG_RESETSESSION:
@@ -1323,6 +1334,7 @@ static int read_partial_message(struct ceph_connection *con)
unsigned front_len, middle_len, data_len, data_off;
int datacrc = con->msgr->nocrc;
int skip;
+ u64 seq;
dout("read_partial_message con %p msg %p\n", con, m);
@@ -1357,6 +1369,25 @@ static int read_partial_message(struct ceph_connection *con)
return -EIO;
data_off = le16_to_cpu(con->in_hdr.data_off);
+ /* verify seq# */
+ seq = le64_to_cpu(con->in_hdr.seq);
+ if ((s64)seq - (s64)con->in_seq < 1) {
+ pr_info("skipping %s%lld %s seq %lld, expected %lld\n",
+ ENTITY_NAME(con->peer_name),
+ pr_addr(&con->peer_addr.in_addr),
+ seq, con->in_seq + 1);
+ con->in_base_pos = -front_len - middle_len - data_len -
+ sizeof(m->footer);
+ con->in_tag = CEPH_MSGR_TAG_READY;
+ con->in_seq++;
+ return 0;
+ } else if ((s64)seq - (s64)con->in_seq > 1) {
+ pr_err("read_partial_message bad seq %lld expected %lld\n",
+ seq, con->in_seq + 1);
+ con->error_msg = "bad message sequence # for incoming message";
+ return -EBADMSG;
+ }
+
/* allocate message? */
if (!con->in_msg) {
dout("got hdr type %d front %d data %d\n", con->in_hdr.type,
@@ -1368,6 +1399,7 @@ static int read_partial_message(struct ceph_connection *con)
con->in_base_pos = -front_len - middle_len - data_len -
sizeof(m->footer);
con->in_tag = CEPH_MSGR_TAG_READY;
+ con->in_seq++;
return 0;
}
if (IS_ERR(con->in_msg)) {
@@ -1843,8 +1875,6 @@ static void ceph_fault(struct ceph_connection *con)
goto out;
}
- clear_bit(BUSY, &con->state); /* to avoid an improbable race */
-
mutex_lock(&con->mutex);
if (test_bit(CLOSED, &con->state))
goto out_unlock;
@@ -2021,6 +2051,7 @@ void ceph_con_revoke_message(struct ceph_connection *con, struct ceph_msg *msg)
ceph_msg_put(con->in_msg);
con->in_msg = NULL;
con->in_tag = CEPH_MSGR_TAG_READY;
+ con->in_seq++;
} else {
dout("con_revoke_pages %p msg %p pages %p no-op\n",
con, con->in_msg, msg);
diff --git a/fs/ceph/messenger.h b/fs/ceph/messenger.h
index 4caaa5911110..a343dae73cdc 100644
--- a/fs/ceph/messenger.h
+++ b/fs/ceph/messenger.h
@@ -223,6 +223,7 @@ extern void ceph_con_init(struct ceph_messenger *msgr,
struct ceph_connection *con);
extern void ceph_con_open(struct ceph_connection *con,
struct ceph_entity_addr *addr);
+extern bool ceph_con_opened(struct ceph_connection *con);
extern void ceph_con_close(struct ceph_connection *con);
extern void ceph_con_send(struct ceph_connection *con, struct ceph_msg *msg);
extern void ceph_con_revoke(struct ceph_connection *con, struct ceph_msg *msg);
diff --git a/fs/ceph/mon_client.c b/fs/ceph/mon_client.c
index 890597c09d43..8fdc011ca956 100644
--- a/fs/ceph/mon_client.c
+++ b/fs/ceph/mon_client.c
@@ -1,6 +1,7 @@
#include "ceph_debug.h"
#include <linux/types.h>
+#include <linux/slab.h>
#include <linux/random.h>
#include <linux/sched.h>
diff --git a/fs/ceph/osd_client.c b/fs/ceph/osd_client.c
index dbe63db9762f..c7b4dedaace6 100644
--- a/fs/ceph/osd_client.c
+++ b/fs/ceph/osd_client.c
@@ -413,11 +413,22 @@ static void remove_old_osds(struct ceph_osd_client *osdc, int remove_all)
*/
static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
{
+ struct ceph_osd_request *req;
int ret = 0;
dout("__reset_osd %p osd%d\n", osd, osd->o_osd);
if (list_empty(&osd->o_requests)) {
__remove_osd(osdc, osd);
+ } else if (memcmp(&osdc->osdmap->osd_addr[osd->o_osd],
+ &osd->o_con.peer_addr,
+ sizeof(osd->o_con.peer_addr)) == 0 &&
+ !ceph_con_opened(&osd->o_con)) {
+ dout(" osd addr hasn't changed and connection never opened,"
+ " letting msgr retry");
+ /* touch each r_stamp for handle_timeout()'s benfit */
+ list_for_each_entry(req, &osd->o_requests, r_osd_item)
+ req->r_stamp = jiffies;
+ ret = -EAGAIN;
} else {
ceph_con_close(&osd->o_con);
ceph_con_open(&osd->o_con, &osdc->osdmap->osd_addr[osd->o_osd]);
@@ -633,7 +644,7 @@ static int __send_request(struct ceph_osd_client *osdc,
reqhead->flags |= cpu_to_le32(req->r_flags); /* e.g., RETRY */
reqhead->reassert_version = req->r_reassert_version;
- req->r_sent_stamp = jiffies;
+ req->r_stamp = jiffies;
list_move_tail(&osdc->req_lru, &req->r_req_lru_item);
ceph_msg_get(req->r_request); /* send consumes a ref */
@@ -660,7 +671,7 @@ static void handle_timeout(struct work_struct *work)
unsigned long timeout = osdc->client->mount_args->osd_timeout * HZ;
unsigned long keepalive =
osdc->client->mount_args->osd_keepalive_timeout * HZ;
- unsigned long last_sent = 0;
+ unsigned long last_stamp = 0;
struct rb_node *p;
struct list_head slow_osds;
@@ -697,12 +708,12 @@ static void handle_timeout(struct work_struct *work)
req = list_entry(osdc->req_lru.next, struct ceph_osd_request,
r_req_lru_item);
- if (time_before(jiffies, req->r_sent_stamp + timeout))
+ if (time_before(jiffies, req->r_stamp + timeout))
break;
- BUG_ON(req == last_req && req->r_sent_stamp == last_sent);
+ BUG_ON(req == last_req && req->r_stamp == last_stamp);
last_req = req;
- last_sent = req->r_sent_stamp;
+ last_stamp = req->r_stamp;
osd = req->r_osd;
BUG_ON(!osd);
@@ -718,7 +729,7 @@ static void handle_timeout(struct work_struct *work)
*/
INIT_LIST_HEAD(&slow_osds);
list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) {
- if (time_before(jiffies, req->r_sent_stamp + keepalive))
+ if (time_before(jiffies, req->r_stamp + keepalive))
break;
osd = req->r_osd;
@@ -862,7 +873,9 @@ static int __kick_requests(struct ceph_osd_client *osdc,
dout("kick_requests osd%d\n", kickosd ? kickosd->o_osd : -1);
if (kickosd) {
- __reset_osd(osdc, kickosd);
+ err = __reset_osd(osdc, kickosd);
+ if (err == -EAGAIN)
+ return 1;
} else {
for (p = rb_first(&osdc->osds); p; p = n) {
struct ceph_osd *osd =
@@ -913,7 +926,7 @@ static int __kick_requests(struct ceph_osd_client *osdc,
kick:
dout("kicking %p tid %llu osd%d\n", req, req->r_tid,
- req->r_osd->o_osd);
+ req->r_osd ? req->r_osd->o_osd : -1);
req->r_flags |= CEPH_OSD_FLAG_RETRY;
err = __send_request(osdc, req);
if (err) {
diff --git a/fs/ceph/osd_client.h b/fs/ceph/osd_client.h
index 1b1a3ca43afc..b0759911e7c3 100644
--- a/fs/ceph/osd_client.h
+++ b/fs/ceph/osd_client.h
@@ -70,7 +70,7 @@ struct ceph_osd_request {
char r_oid[40]; /* object name */
int r_oid_len;
- unsigned long r_sent_stamp;
+ unsigned long r_stamp; /* send OR check time */
bool r_resend; /* msg send failed, needs retry */
struct ceph_file_layout r_file_layout;
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index b83f2692b835..2e2c15eed82a 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -1,4 +1,7 @@
+#include "ceph_debug.h"
+
+#include <linux/slab.h>
#include <asm/div64.h>
#include "super.h"
@@ -6,7 +9,6 @@
#include "crush/hash.h"
#include "crush/mapper.h"
#include "decode.h"
-#include "ceph_debug.h"
char *ceph_osdmap_state_str(char *str, int len, int state)
{
@@ -312,71 +314,6 @@ bad:
return ERR_PTR(err);
}
-
-/*
- * osd map
- */
-void ceph_osdmap_destroy(struct ceph_osdmap *map)
-{
- dout("osdmap_destroy %p\n", map);
- if (map->crush)
- crush_destroy(map->crush);
- while (!RB_EMPTY_ROOT(&map->pg_temp)) {
- struct ceph_pg_mapping *pg =
- rb_entry(rb_first(&map->pg_temp),
- struct ceph_pg_mapping, node);
- rb_erase(&pg->node, &map->pg_temp);
- kfree(pg);
- }
- while (!RB_EMPTY_ROOT(&map->pg_pools)) {
- struct ceph_pg_pool_info *pi =
- rb_entry(rb_first(&map->pg_pools),
- struct ceph_pg_pool_info, node);
- rb_erase(&pi->node, &map->pg_pools);
- kfree(pi);
- }
- kfree(map->osd_state);
- kfree(map->osd_weight);
- kfree(map->osd_addr);
- kfree(map);
-}
-
-/*
- * adjust max osd value. reallocate arrays.
- */
-static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
-{
- u8 *state;
- struct ceph_entity_addr *addr;
- u32 *weight;
-
- state = kcalloc(max, sizeof(*state), GFP_NOFS);
- addr = kcalloc(max, sizeof(*addr), GFP_NOFS);
- weight = kcalloc(max, sizeof(*weight), GFP_NOFS);
- if (state == NULL || addr == NULL || weight == NULL) {
- kfree(state);
- kfree(addr);
- kfree(weight);
- return -ENOMEM;
- }
-
- /* copy old? */
- if (map->osd_state) {
- memcpy(state, map->osd_state, map->max_osd*sizeof(*state));
- memcpy(addr, map->osd_addr, map->max_osd*sizeof(*addr));
- memcpy(weight, map->osd_weight, map->max_osd*sizeof(*weight));
- kfree(map->osd_state);
- kfree(map->osd_addr);
- kfree(map->osd_weight);
- }
-
- map->osd_state = state;
- map->osd_weight = weight;
- map->osd_addr = addr;
- map->max_osd = max;
- return 0;
-}
-
/*
* rbtree of pg_mapping for handling pg_temp (explicit mapping of pgid
* to a set of osds)
@@ -480,6 +417,113 @@ static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
return NULL;
}
+static void __remove_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *pi)
+{
+ rb_erase(&pi->node, root);
+ kfree(pi->name);
+ kfree(pi);
+}
+
+void __decode_pool(void **p, struct ceph_pg_pool_info *pi)
+{
+ ceph_decode_copy(p, &pi->v, sizeof(pi->v));
+ calc_pg_masks(pi);
+ *p += le32_to_cpu(pi->v.num_snaps) * sizeof(u64);
+ *p += le32_to_cpu(pi->v.num_removed_snap_intervals) * sizeof(u64) * 2;
+}
+
+static int __decode_pool_names(void **p, void *end, struct ceph_osdmap *map)
+{
+ struct ceph_pg_pool_info *pi;
+ u32 num, len, pool;
+
+ ceph_decode_32_safe(p, end, num, bad);
+ dout(" %d pool names\n", num);
+ while (num--) {
+ ceph_decode_32_safe(p, end, pool, bad);
+ ceph_decode_32_safe(p, end, len, bad);
+ dout(" pool %d len %d\n", pool, len);
+ pi = __lookup_pg_pool(&map->pg_pools, pool);
+ if (pi) {
+ kfree(pi->name);
+ pi->name = kmalloc(len + 1, GFP_NOFS);
+ if (pi->name) {
+ memcpy(pi->name, *p, len);
+ pi->name[len] = '\0';
+ dout(" name is %s\n", pi->name);
+ }
+ }
+ *p += len;
+ }
+ return 0;
+
+bad:
+ return -EINVAL;
+}
+
+/*
+ * osd map
+ */
+void ceph_osdmap_destroy(struct ceph_osdmap *map)
+{
+ dout("osdmap_destroy %p\n", map);
+ if (map->crush)
+ crush_destroy(map->crush);
+ while (!RB_EMPTY_ROOT(&map->pg_temp)) {
+ struct ceph_pg_mapping *pg =
+ rb_entry(rb_first(&map->pg_temp),
+ struct ceph_pg_mapping, node);
+ rb_erase(&pg->node, &map->pg_temp);
+ kfree(pg);
+ }
+ while (!RB_EMPTY_ROOT(&map->pg_pools)) {
+ struct ceph_pg_pool_info *pi =
+ rb_entry(rb_first(&map->pg_pools),
+ struct ceph_pg_pool_info, node);
+ __remove_pg_pool(&map->pg_pools, pi);
+ }
+ kfree(map->osd_state);
+ kfree(map->osd_weight);
+ kfree(map->osd_addr);
+ kfree(map);
+}
+
+/*
+ * adjust max osd value. reallocate arrays.
+ */
+static int osdmap_set_max_osd(struct ceph_osdmap *map, int max)
+{
+ u8 *state;
+ struct ceph_entity_addr *addr;
+ u32 *weight;
+
+ state = kcalloc(max, sizeof(*state), GFP_NOFS);
+ addr = kcalloc(max, sizeof(*addr), GFP_NOFS);
+ weight = kcalloc(max, sizeof(*weight), GFP_NOFS);
+ if (state == NULL || addr == NULL || weight == NULL) {
+ kfree(state);
+ kfree(addr);
+ kfree(weight);
+ return -ENOMEM;
+ }
+
+ /* copy old? */
+ if (map->osd_state) {
+ memcpy(state, map->osd_state, map->max_osd*sizeof(*state));
+ memcpy(addr, map->osd_addr, map->max_osd*sizeof(*addr));
+ memcpy(weight, map->osd_weight, map->max_osd*sizeof(*weight));
+ kfree(map->osd_state);
+ kfree(map->osd_addr);
+ kfree(map->osd_weight);
+ }
+
+ map->osd_state = state;
+ map->osd_weight = weight;
+ map->osd_addr = addr;
+ map->max_osd = max;
+ return 0;
+}
+
/*
* decode a full map.
*/
@@ -516,7 +560,7 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
ceph_decode_32_safe(p, end, max, bad);
while (max--) {
ceph_decode_need(p, end, 4 + 1 + sizeof(pi->v), bad);
- pi = kmalloc(sizeof(*pi), GFP_NOFS);
+ pi = kzalloc(sizeof(*pi), GFP_NOFS);
if (!pi)
goto bad;
pi->id = ceph_decode_32(p);
@@ -526,13 +570,13 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
ev, CEPH_PG_POOL_VERSION);
goto bad;
}
- ceph_decode_copy(p, &pi->v, sizeof(pi->v));
+ __decode_pool(p, pi);
__insert_pg_pool(&map->pg_pools, pi);
- calc_pg_masks(pi);
- *p += le32_to_cpu(pi->v.num_snaps) * sizeof(u64);
- *p += le32_to_cpu(pi->v.num_removed_snap_intervals)
- * sizeof(u64) * 2;
}
+
+ if (version >= 5 && __decode_pool_names(p, end, map) < 0)
+ goto bad;
+
ceph_decode_32_safe(p, end, map->pool_max, bad);
ceph_decode_32_safe(p, end, map->flags, bad);
@@ -706,7 +750,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
}
pi = __lookup_pg_pool(&map->pg_pools, pool);
if (!pi) {
- pi = kmalloc(sizeof(*pi), GFP_NOFS);
+ pi = kzalloc(sizeof(*pi), GFP_NOFS);
if (!pi) {
err = -ENOMEM;
goto bad;
@@ -714,9 +758,10 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
pi->id = pool;
__insert_pg_pool(&map->pg_pools, pi);
}
- ceph_decode_copy(p, &pi->v, sizeof(pi->v));
- calc_pg_masks(pi);
+ __decode_pool(p, pi);
}
+ if (version >= 5 && __decode_pool_names(p, end, map) < 0)
+ goto bad;
/* old_pool */
ceph_decode_32_safe(p, end, len, bad);
@@ -725,10 +770,8 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
ceph_decode_32_safe(p, end, pool, bad);
pi = __lookup_pg_pool(&map->pg_pools, pool);
- if (pi) {
- rb_erase(&pi->node, &map->pg_pools);
- kfree(pi);
- }
+ if (pi)
+ __remove_pg_pool(&map->pg_pools, pi);
}
/* new_up */
diff --git a/fs/ceph/osdmap.h b/fs/ceph/osdmap.h
index 1fb55afb2642..8bc9f1e4f562 100644
--- a/fs/ceph/osdmap.h
+++ b/fs/ceph/osdmap.h
@@ -23,6 +23,7 @@ struct ceph_pg_pool_info {
int id;
struct ceph_pg_pool v;
int pg_num_mask, pgp_num_mask, lpg_num_mask, lpgp_num_mask;
+ char *name;
};
struct ceph_pg_mapping {
diff --git a/fs/ceph/pagelist.c b/fs/ceph/pagelist.c
index 370e93695474..5f8dbf7c745a 100644
--- a/fs/ceph/pagelist.c
+++ b/fs/ceph/pagelist.c
@@ -1,4 +1,5 @@
+#include <linux/gfp.h>
#include <linux/pagemap.h>
#include <linux/highmem.h>
diff --git a/fs/ceph/rados.h b/fs/ceph/rados.h
index 26ac8b89a676..a1fc1d017b58 100644
--- a/fs/ceph/rados.h
+++ b/fs/ceph/rados.h
@@ -11,8 +11,10 @@
/*
* osdmap encoding versions
*/
-#define CEPH_OSDMAP_INC_VERSION 4
-#define CEPH_OSDMAP_VERSION 4
+#define CEPH_OSDMAP_INC_VERSION 5
+#define CEPH_OSDMAP_INC_VERSION_EXT 5
+#define CEPH_OSDMAP_VERSION 5
+#define CEPH_OSDMAP_VERSION_EXT 5
/*
* fs id
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index bf2a5f3846a4..d5114db70453 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -1,6 +1,7 @@
#include "ceph_debug.h"
#include <linux/sort.h>
+#include <linux/slab.h>
#include "super.h"
#include "decode.h"
@@ -314,9 +315,9 @@ static int build_snap_context(struct ceph_snap_realm *realm)
because we rebuild_snap_realms() works _downward_ in
hierarchy after each update.) */
if (realm->cached_context &&
- realm->cached_context->seq <= realm->seq &&
+ realm->cached_context->seq == realm->seq &&
(!parent ||
- realm->cached_context->seq <= parent->cached_context->seq)) {
+ realm->cached_context->seq >= parent->cached_context->seq)) {
dout("build_snap_context %llx %p: %p seq %lld (%d snaps)"
" (unchanged)\n",
realm->ino, realm, realm->cached_context,
@@ -430,8 +431,7 @@ static int dup_array(u64 **dst, __le64 *src, int num)
* Caller must hold snap_rwsem for read (i.e., the realm topology won't
* change).
*/
-void ceph_queue_cap_snap(struct ceph_inode_info *ci,
- struct ceph_snap_context *snapc)
+void ceph_queue_cap_snap(struct ceph_inode_info *ci)
{
struct inode *inode = &ci->vfs_inode;
struct ceph_cap_snap *capsnap;
@@ -450,10 +450,11 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
as no new writes are allowed to start when pending, so any
writes in progress now were started before the previous
cap_snap. lucky us. */
- dout("queue_cap_snap %p snapc %p seq %llu used %d"
- " already pending\n", inode, snapc, snapc->seq, used);
+ dout("queue_cap_snap %p already pending\n", inode);
kfree(capsnap);
} else if (ci->i_wrbuffer_ref_head || (used & CEPH_CAP_FILE_WR)) {
+ struct ceph_snap_context *snapc = ci->i_head_snapc;
+
igrab(inode);
atomic_set(&capsnap->nref, 1);
@@ -462,7 +463,6 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
INIT_LIST_HEAD(&capsnap->flushing_item);
capsnap->follows = snapc->seq - 1;
- capsnap->context = ceph_get_snap_context(snapc);
capsnap->issued = __ceph_caps_issued(ci, NULL);
capsnap->dirty = __ceph_caps_dirty(ci);
@@ -479,7 +479,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci,
snapshot. */
capsnap->dirty_pages = ci->i_wrbuffer_ref_head;
ci->i_wrbuffer_ref_head = 0;
- ceph_put_snap_context(ci->i_head_snapc);
+ capsnap->context = snapc;
ci->i_head_snapc = NULL;
list_add_tail(&capsnap->ci_item, &ci->i_cap_snaps);
@@ -521,15 +521,17 @@ int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
capsnap->ctime = inode->i_ctime;
capsnap->time_warp_seq = ci->i_time_warp_seq;
if (capsnap->dirty_pages) {
- dout("finish_cap_snap %p cap_snap %p snapc %p %llu s=%llu "
+ dout("finish_cap_snap %p cap_snap %p snapc %p %llu %s s=%llu "
"still has %d dirty pages\n", inode, capsnap,
capsnap->context, capsnap->context->seq,
- capsnap->size, capsnap->dirty_pages);
+ ceph_cap_string(capsnap->dirty), capsnap->size,
+ capsnap->dirty_pages);
return 0;
}
- dout("finish_cap_snap %p cap_snap %p snapc %p %llu s=%llu clean\n",
+ dout("finish_cap_snap %p cap_snap %p snapc %p %llu %s s=%llu\n",
inode, capsnap, capsnap->context,
- capsnap->context->seq, capsnap->size);
+ capsnap->context->seq, ceph_cap_string(capsnap->dirty),
+ capsnap->size);
spin_lock(&mdsc->snap_flush_lock);
list_add_tail(&ci->i_snap_flush_item, &mdsc->snap_flush_list);
@@ -601,7 +603,7 @@ more:
if (lastinode)
iput(lastinode);
lastinode = inode;
- ceph_queue_cap_snap(ci, realm->cached_context);
+ ceph_queue_cap_snap(ci);
spin_lock(&realm->inodes_with_caps_lock);
}
spin_unlock(&realm->inodes_with_caps_lock);
@@ -818,11 +820,12 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
* queued (again) by ceph_update_snap_trace()
* below. Queue it _now_, under the old context.
*/
+ spin_lock(&realm->inodes_with_caps_lock);
list_del_init(&ci->i_snap_realm_item);
+ spin_unlock(&realm->inodes_with_caps_lock);
spin_unlock(&inode->i_lock);
- ceph_queue_cap_snap(ci,
- ci->i_snap_realm->cached_context);
+ ceph_queue_cap_snap(ci);
iput(inode);
continue;
@@ -866,16 +869,20 @@ skip_inode:
continue;
ci = ceph_inode(inode);
spin_lock(&inode->i_lock);
- if (!ci->i_snap_realm)
- goto split_skip_inode;
- ceph_put_snap_realm(mdsc, ci->i_snap_realm);
- spin_lock(&realm->inodes_with_caps_lock);
- list_add(&ci->i_snap_realm_item,
- &realm->inodes_with_caps);
- ci->i_snap_realm = realm;
- spin_unlock(&realm->inodes_with_caps_lock);
- ceph_get_snap_realm(mdsc, realm);
-split_skip_inode:
+ if (list_empty(&ci->i_snap_realm_item)) {
+ struct ceph_snap_realm *oldrealm =
+ ci->i_snap_realm;
+
+ dout(" moving %p to split realm %llx %p\n",
+ inode, realm->ino, realm);
+ spin_lock(&realm->inodes_with_caps_lock);
+ list_add(&ci->i_snap_realm_item,
+ &realm->inodes_with_caps);
+ ci->i_snap_realm = realm;
+ spin_unlock(&realm->inodes_with_caps_lock);
+ ceph_get_snap_realm(mdsc, realm);
+ ceph_put_snap_realm(mdsc, oldrealm);
+ }
spin_unlock(&inode->i_lock);
iput(inode);
}
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 4290a6e860b0..f888cf487b7c 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -11,6 +11,7 @@
#include <linux/rwsem.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include <linux/statfs.h>
#include <linux/string.h>
#include <linux/version.h>
@@ -995,9 +996,10 @@ static int __init init_ceph(void)
if (ret)
goto out_icache;
- pr_info("loaded %d.%d.%d (mon/mds/osd proto %d/%d/%d)\n",
- CEPH_VERSION_MAJOR, CEPH_VERSION_MINOR, CEPH_VERSION_PATCH,
- CEPH_MONC_PROTOCOL, CEPH_MDSC_PROTOCOL, CEPH_OSDC_PROTOCOL);
+ pr_info("loaded (mon/mds/osd proto %d/%d/%d, osdmap %d/%d %d/%d)\n",
+ CEPH_MONC_PROTOCOL, CEPH_MDSC_PROTOCOL, CEPH_OSDC_PROTOCOL,
+ CEPH_OSDMAP_VERSION, CEPH_OSDMAP_VERSION_EXT,
+ CEPH_OSDMAP_INC_VERSION, CEPH_OSDMAP_INC_VERSION_EXT);
return 0;
out_icache:
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 65d12036b670..13513b80d87f 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -10,8 +10,10 @@
#include <linux/fs.h>
#include <linux/mempool.h>
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <linux/wait.h>
#include <linux/writeback.h>
+#include <linux/slab.h>
#include "types.h"
#include "messenger.h"
@@ -714,8 +716,7 @@ extern int ceph_update_snap_trace(struct ceph_mds_client *m,
extern void ceph_handle_snap(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session,
struct ceph_msg *msg);
-extern void ceph_queue_cap_snap(struct ceph_inode_info *ci,
- struct ceph_snap_context *snapc);
+extern void ceph_queue_cap_snap(struct ceph_inode_info *ci);
extern int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
struct ceph_cap_snap *capsnap);
extern void ceph_cleanup_empty_realms(struct ceph_mds_client *mdsc);
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 37d6ce645691..2845422907fc 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -3,6 +3,7 @@
#include "decode.h"
#include <linux/xattr.h>
+#include <linux/slab.h>
static bool ceph_is_valid_xattr(const char *name)
{
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index b1d61d0bdfc7..78e4d2a3a68b 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -15,6 +15,7 @@
#include <linux/dcache.h>
#include <linux/mount.h>
#include <linux/namei.h>
+#include <linux/slab.h>
#include <linux/vfs.h>
#include <linux/fs.h>
#include "cifsglob.h"
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 4797787c6a44..246a167cb913 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -18,6 +18,8 @@
#ifndef _CIFS_FS_SB_H
#define _CIFS_FS_SB_H
+#include <linux/backing-dev.h>
+
#define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */
#define CIFS_MOUNT_SET_UID 2 /* set current's euid in create etc. */
#define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */
@@ -50,5 +52,6 @@ struct cifs_sb_info {
#ifdef CONFIG_CIFS_DFS_UPCALL
char *mountdata; /* mount options received at mount time */
#endif
+ struct backing_dev_info bdi;
};
#endif /* _CIFS_FS_SB_H */
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 8ec7736ce954..310d12f69a92 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -20,6 +20,7 @@
*/
#include <linux/list.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include <keys/user-type.h>
#include <linux/key-type.h>
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index 714a542cbafc..d07676bd76d2 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include "cifs_unicode.h"
#include "cifs_uniupr.h"
#include "cifspdu.h"
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 7dfe0842a6f6..9b716d044bbd 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -22,6 +22,7 @@
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsacl.h"
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 7efe1745494d..fbe986430d0c 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -20,6 +20,7 @@
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifs_debug.h"
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 5183bc2a1916..ad235d604a0b 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -103,6 +103,12 @@ cifs_read_super(struct super_block *sb, void *data,
if (cifs_sb == NULL)
return -ENOMEM;
+ rc = bdi_setup_and_register(&cifs_sb->bdi, "cifs", BDI_CAP_MAP_COPY);
+ if (rc) {
+ kfree(cifs_sb);
+ return rc;
+ }
+
#ifdef CONFIG_CIFS_DFS_UPCALL
/* copy mount params to sb for use in submounts */
/* BB: should we move this after the mount so we
@@ -115,6 +121,7 @@ cifs_read_super(struct super_block *sb, void *data,
int len = strlen(data);
cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL);
if (cifs_sb->mountdata == NULL) {
+ bdi_destroy(&cifs_sb->bdi);
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
return -ENOMEM;
@@ -135,6 +142,7 @@ cifs_read_super(struct super_block *sb, void *data,
sb->s_magic = CIFS_MAGIC_NUMBER;
sb->s_op = &cifs_super_ops;
+ sb->s_bdi = &cifs_sb->bdi;
/* if (cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512)
sb->s_blocksize =
cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */
@@ -183,6 +191,7 @@ out_mount_failed:
}
#endif
unload_nls(cifs_sb->local_nls);
+ bdi_destroy(&cifs_sb->bdi);
kfree(cifs_sb);
}
return rc;
@@ -214,6 +223,7 @@ cifs_put_super(struct super_block *sb)
#endif
unload_nls(cifs_sb->local_nls);
+ bdi_destroy(&cifs_sb->bdi);
kfree(cifs_sb);
unlock_kernel();
@@ -808,6 +818,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
.release = cifs_close,
.fsync = cifs_fsync,
.flush = cifs_flush,
+ .mmap = cifs_file_mmap,
.splice_read = generic_file_splice_read,
#ifdef CONFIG_CIFS_POSIX
.unlocked_ioctl = cifs_ioctl,
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 63c89d1d70b5..ecf0ffbe2b64 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -18,6 +18,7 @@
*/
#include <linux/in.h>
#include <linux/in6.h>
+#include <linux/slab.h>
#include <linux/slow-work.h>
#include "cifs_fs_sb.h"
#include "cifsacl.h"
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 7cc7f83e9314..5d3f29fef532 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -30,6 +30,7 @@
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/vfs.h>
+#include <linux/slab.h>
#include <linux/posix_acl_xattr.h>
#include <asm/uaccess.h>
#include "cifspdu.h"
@@ -1430,6 +1431,8 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
__u32 bytes_sent;
__u16 byte_count;
+ *nbytes = 0;
+
/* cFYI(1, ("write at %lld %d bytes", offset, count));*/
if (tcon->ses == NULL)
return -ECONNABORTED;
@@ -1512,11 +1515,18 @@ CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
cifs_stats_inc(&tcon->num_writes);
if (rc) {
cFYI(1, ("Send error in write = %d", rc));
- *nbytes = 0;
} else {
*nbytes = le16_to_cpu(pSMBr->CountHigh);
*nbytes = (*nbytes) << 16;
*nbytes += le16_to_cpu(pSMBr->Count);
+
+ /*
+ * Mask off high 16 bits when bytes written as returned by the
+ * server is greater than bytes requested by the client. Some
+ * OS/2 servers are known to set incorrect CountHigh values.
+ */
+ if (*nbytes > count)
+ *nbytes &= 0xFFFF;
}
cifs_buf_release(pSMB);
@@ -1605,6 +1615,14 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
*nbytes = le16_to_cpu(pSMBr->CountHigh);
*nbytes = (*nbytes) << 16;
*nbytes += le16_to_cpu(pSMBr->Count);
+
+ /*
+ * Mask off high 16 bits when bytes written as returned by the
+ * server is greater than bytes requested by the client. OS/2
+ * servers are known to set incorrect CountHigh values.
+ */
+ if (*nbytes > count)
+ *nbytes &= 0xFFFF;
}
/* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
@@ -1793,8 +1811,21 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
}
parm_data = (struct cifs_posix_lock *)
((char *)&pSMBr->hdr.Protocol + data_offset);
- if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK))
+ if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK))
pLockData->fl_type = F_UNLCK;
+ else {
+ if (parm_data->lock_type ==
+ __constant_cpu_to_le16(CIFS_RDLCK))
+ pLockData->fl_type = F_RDLCK;
+ else if (parm_data->lock_type ==
+ __constant_cpu_to_le16(CIFS_WRLCK))
+ pLockData->fl_type = F_WRLCK;
+
+ pLockData->fl_start = parm_data->start;
+ pLockData->fl_end = parm_data->start +
+ parm_data->length - 1;
+ pLockData->fl_pid = parm_data->pid;
+ }
}
plk_err_exit:
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 45eb6cba793f..d9566bf8f917 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -23,6 +23,7 @@
#include <linux/string.h>
#include <linux/list.h>
#include <linux/wait.h>
+#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/ctype.h>
#include <linux/utsname.h>
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index 87948147d7ec..6f8a0e3fb25b 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -23,6 +23,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/slab.h>
#include <keys/user-type.h>
#include "dns_resolve.h"
#include "cifsglob.h"
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index ca2ba7a0193c..9b11a8f56f3a 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -31,6 +31,7 @@
#include <linux/task_io_accounting_ops.h>
#include <linux/delay.h>
#include <linux/mount.h>
+#include <linux/slab.h>
#include <asm/div64.h>
#include "cifsfs.h"
#include "cifspdu.h"
@@ -838,8 +839,32 @@ int cifs_lock(struct file *file, int cmd, struct file_lock *pfLock)
} else {
/* if rc == ERR_SHARING_VIOLATION ? */
- rc = 0; /* do not change lock type to unlock
- since range in use */
+ rc = 0;
+
+ if (lockType & LOCKING_ANDX_SHARED_LOCK) {
+ pfLock->fl_type = F_WRLCK;
+ } else {
+ rc = CIFSSMBLock(xid, tcon, netfid, length,
+ pfLock->fl_start, 0, 1,
+ lockType | LOCKING_ANDX_SHARED_LOCK,
+ 0 /* wait flag */);
+ if (rc == 0) {
+ rc = CIFSSMBLock(xid, tcon, netfid,
+ length, pfLock->fl_start, 1, 0,
+ lockType |
+ LOCKING_ANDX_SHARED_LOCK,
+ 0 /* wait flag */);
+ pfLock->fl_type = F_RDLCK;
+ if (rc != 0)
+ cERROR(1, ("Error unlocking "
+ "previously locked range %d "
+ "during test of lock", rc));
+ rc = 0;
+ } else {
+ pfLock->fl_type = F_WRLCK;
+ rc = 0;
+ }
+ }
}
FreeXid(xid);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 723daaccbd0e..35ec11716213 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -20,6 +20,7 @@
*/
#include <linux/fs.h>
#include <linux/stat.h>
+#include <linux/slab.h>
#include <linux/pagemap.h>
#include <asm/div64.h>
#include "cifsfs.h"
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index fc1e0487eaee..c1a9d4236a8c 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -20,6 +20,7 @@
*/
#include <linux/fs.h>
#include <linux/stat.h>
+#include <linux/slab.h>
#include <linux/namei.h>
#include "cifsfs.h"
#include "cifspdu.h"
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index c343b14ba2d3..18e0bc1fb593 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -22,6 +22,7 @@
*/
#include <linux/fs.h>
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <linux/stat.h>
#include "cifspdu.h"
#include "cifsglob.h"
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index aaa9c1c5a5bd..7c3fd7463f44 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -29,6 +29,7 @@
#include "ntlmssp.h"
#include "nterr.h"
#include <linux/utsname.h>
+#include <linux/slab.h>
#include "cifs_spnego.h"
extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8,
diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
index 93fb09a99c69..192ea51af20f 100644
--- a/fs/cifs/smbencrypt.c
+++ b/fs/cifs/smbencrypt.c
@@ -24,6 +24,7 @@
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/kernel.h>
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 07b8e71544ee..ad081fe7eb18 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -22,6 +22,7 @@
#include <linux/fs.h>
#include <linux/list.h>
+#include <linux/gfp.h>
#include <linux/wait.h>
#include <linux/net.h>
#include <linux/delay.h>
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 3e2ef0de1209..f555ce077d4f 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
+#include <linux/slab.h>
#include "cifsfs.h"
#include "cifspdu.h"
#include "cifsglob.h"
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 4bb9d0a5decc..ccd98b0f2b0b 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/time.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/file.h>
#include <linux/stat.h>
#include <linux/errno.h>
diff --git a/fs/coda/file.c b/fs/coda/file.c
index ffd42815fda1..4c813f2cdc52 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/smp_lock.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/coda.h>
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 830f51abb971..d97f9935a028 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -18,6 +18,7 @@
#include <linux/smp_lock.h>
#include <linux/file.h>
#include <linux/vfs.h>
+#include <linux/slab.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -166,6 +167,10 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
return -EBUSY;
}
+ error = bdi_setup_and_register(&vc->bdi, "coda", BDI_CAP_MAP_COPY);
+ if (error)
+ goto bdi_err;
+
vc->vc_sb = sb;
sb->s_fs_info = vc;
@@ -174,6 +179,7 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
sb->s_blocksize_bits = 12;
sb->s_magic = CODA_SUPER_MAGIC;
sb->s_op = &coda_super_operations;
+ sb->s_bdi = &vc->bdi;
/* get root fid from Venus: this needs the root inode */
error = venus_rootfid(sb, &fid);
@@ -199,6 +205,8 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
return 0;
error:
+ bdi_destroy(&vc->bdi);
+ bdi_err:
if (root)
iput(root);
if (vc)
@@ -209,6 +217,7 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
static void coda_put_super(struct super_block *sb)
{
+ bdi_destroy(&coda_vcp(sb)->bdi);
coda_vcp(sb)->vc_sb = NULL;
sb->s_fs_info = NULL;
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index c274d949179d..f09c5ed76f6c 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -26,6 +26,7 @@
#include <linux/stat.h>
#include <linux/errno.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/vmalloc.h>
#include <linux/vfs.h>
diff --git a/fs/compat.c b/fs/compat.c
index 030602d453b7..4b6ed03cc478 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -49,6 +49,7 @@
#include <linux/mm.h>
#include <linux/eventpoll.h>
#include <linux/fs_struct.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 6d55b61bfa79..641640dc7ae5 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -23,7 +23,6 @@
#include <linux/ioctl.h>
#include <linux/if.h>
#include <linux/if_bridge.h>
-#include <linux/slab.h>
#include <linux/raid/md_u.h>
#include <linux/kd.h>
#include <linux/route.h>
@@ -60,6 +59,7 @@
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <linux/atalk.h>
+#include <linux/gfp.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci.h>
@@ -102,7 +102,6 @@
#include <linux/nbd.h>
#include <linux/random.h>
#include <linux/filter.h>
-#include <linux/pktcdvd.h>
#include <linux/hiddev.h>
@@ -1126,8 +1125,6 @@ COMPATIBLE_IOCTL(PPGETMODE)
COMPATIBLE_IOCTL(PPGETPHASE)
COMPATIBLE_IOCTL(PPGETFLAGS)
COMPATIBLE_IOCTL(PPSETFLAGS)
-/* pktcdvd */
-COMPATIBLE_IOCTL(PACKET_CTRL_CMD)
/* Big A */
/* sparc only */
/* Big Q for sound/OSS */
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index a2f746066c5d..c8af2d91174b 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -34,6 +34,7 @@
#include <linux/capability.h>
#include <linux/sched.h>
#include <linux/lockdep.h>
+#include <linux/slab.h>
#include <linux/configfs.h>
#include "configfs_internal.h"
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index 8421cea7d8c7..8c8d64230c2d 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -29,6 +29,7 @@
#include <linux/mount.h>
#include <linux/pagemap.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/configfs.h>
#include "configfs_internal.h"
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index 32a5f46b1157..0f3eb41d9201 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -27,6 +27,7 @@
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/namei.h>
+#include <linux/slab.h>
#include <linux/configfs.h>
#include "configfs_internal.h"
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 049d6c36da09..30a87b3dbcac 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -27,6 +27,7 @@
#include <linux/fsnotify.h>
#include <linux/string.h>
#include <linux/magic.h>
+#include <linux/slab.h>
static struct vfsmount *debugfs_mount;
static int debugfs_mount_count;
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 8882ecc0f1bf..0120247b41c0 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -15,6 +15,7 @@
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/namei.h>
+#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/tty.h>
#include <linux/mutex.h>
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 0df243850818..b54bca03d92f 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/configfs.h>
+#include <linux/slab.h>
#include <linux/in.h>
#include <linux/in6.h>
#include <net/ipv6.h>
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index 29d6139c35fc..c6cf25158746 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/debugfs.h>
+#include <linux/slab.h>
#include "dlm_internal.h"
#include "lock.h"
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 46ffd3eeaaf7..17903b491298 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -56,6 +56,7 @@
L: receive_xxxx_reply() <- R: send_xxxx_reply()
*/
#include <linux/types.h>
+#include <linux/slab.h>
#include "dlm_internal.h"
#include <linux/dlm_device.h>
#include "memory.h"
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 52cab160893c..c0d35c620526 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -51,6 +51,7 @@
#include <linux/file.h>
#include <linux/mutex.h>
#include <linux/sctp.h>
+#include <linux/slab.h>
#include <net/sctp/user.h>
#include <net/ipv6.h>
diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c
index 052095cd592f..2c6ad518100d 100644
--- a/fs/dlm/netlink.c
+++ b/fs/dlm/netlink.c
@@ -9,6 +9,7 @@
#include <net/genetlink.h>
#include <linux/dlm.h>
#include <linux/dlm_netlink.h>
+#include <linux/gfp.h>
#include "dlm_internal.h"
diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index b5f89aef3b29..d45c02db6943 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -11,6 +11,7 @@
#include <linux/poll.h>
#include <linux/dlm.h>
#include <linux/dlm_plock.h>
+#include <linux/slab.h>
#include "dlm_internal.h"
#include "lockspace.h"
diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index a4bfd31ac45b..8b6e73c47435 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -17,6 +17,7 @@
#include <linux/spinlock.h>
#include <linux/dlm.h>
#include <linux/dlm_device.h>
+#include <linux/slab.h>
#include "dlm_internal.h"
#include "lockspace.h"
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 7cb0a59f4b9d..1cc087635a5e 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -33,6 +33,7 @@
#include <linux/crypto.h>
#include <linux/file.h>
#include <linux/scatterlist.h>
+#include <linux/slab.h>
#include <asm/unaligned.h>
#include "ecryptfs_kernel.h"
@@ -381,8 +382,8 @@ out:
static void ecryptfs_lower_offset_for_extent(loff_t *offset, loff_t extent_num,
struct ecryptfs_crypt_stat *crypt_stat)
{
- (*offset) = (crypt_stat->num_header_bytes_at_front
- + (crypt_stat->extent_size * extent_num));
+ (*offset) = ecryptfs_lower_header_size(crypt_stat)
+ + (crypt_stat->extent_size * extent_num);
}
/**
@@ -834,13 +835,13 @@ void ecryptfs_set_default_sizes(struct ecryptfs_crypt_stat *crypt_stat)
set_extent_mask_and_shift(crypt_stat);
crypt_stat->iv_bytes = ECRYPTFS_DEFAULT_IV_BYTES;
if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
- crypt_stat->num_header_bytes_at_front = 0;
+ crypt_stat->metadata_size = ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
else {
if (PAGE_CACHE_SIZE <= ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)
- crypt_stat->num_header_bytes_at_front =
+ crypt_stat->metadata_size =
ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
else
- crypt_stat->num_header_bytes_at_front = PAGE_CACHE_SIZE;
+ crypt_stat->metadata_size = PAGE_CACHE_SIZE;
}
}
@@ -1107,9 +1108,9 @@ static void write_ecryptfs_marker(char *page_virt, size_t *written)
(*written) = MAGIC_ECRYPTFS_MARKER_SIZE_BYTES;
}
-static void
-write_ecryptfs_flags(char *page_virt, struct ecryptfs_crypt_stat *crypt_stat,
- size_t *written)
+void ecryptfs_write_crypt_stat_flags(char *page_virt,
+ struct ecryptfs_crypt_stat *crypt_stat,
+ size_t *written)
{
u32 flags = 0;
int i;
@@ -1237,8 +1238,7 @@ ecryptfs_write_header_metadata(char *virt,
header_extent_size = (u32)crypt_stat->extent_size;
num_header_extents_at_front =
- (u16)(crypt_stat->num_header_bytes_at_front
- / crypt_stat->extent_size);
+ (u16)(crypt_stat->metadata_size / crypt_stat->extent_size);
put_unaligned_be32(header_extent_size, virt);
virt += 4;
put_unaligned_be16(num_header_extents_at_front, virt);
@@ -1291,7 +1291,8 @@ static int ecryptfs_write_headers_virt(char *page_virt, size_t max,
offset = ECRYPTFS_FILE_SIZE_BYTES;
write_ecryptfs_marker((page_virt + offset), &written);
offset += written;
- write_ecryptfs_flags((page_virt + offset), crypt_stat, &written);
+ ecryptfs_write_crypt_stat_flags((page_virt + offset), crypt_stat,
+ &written);
offset += written;
ecryptfs_write_header_metadata((page_virt + offset), crypt_stat,
&written);
@@ -1381,7 +1382,7 @@ int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry)
rc = -EINVAL;
goto out;
}
- virt_len = crypt_stat->num_header_bytes_at_front;
+ virt_len = crypt_stat->metadata_size;
order = get_order(virt_len);
/* Released in this function */
virt = (char *)ecryptfs_get_zeroed_pages(GFP_KERNEL, order);
@@ -1427,16 +1428,15 @@ static int parse_header_metadata(struct ecryptfs_crypt_stat *crypt_stat,
header_extent_size = get_unaligned_be32(virt);
virt += sizeof(__be32);
num_header_extents_at_front = get_unaligned_be16(virt);
- crypt_stat->num_header_bytes_at_front =
- (((size_t)num_header_extents_at_front
- * (size_t)header_extent_size));
+ crypt_stat->metadata_size = (((size_t)num_header_extents_at_front
+ * (size_t)header_extent_size));
(*bytes_read) = (sizeof(__be32) + sizeof(__be16));
if ((validate_header_size == ECRYPTFS_VALIDATE_HEADER_SIZE)
- && (crypt_stat->num_header_bytes_at_front
+ && (crypt_stat->metadata_size
< ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE)) {
rc = -EINVAL;
printk(KERN_WARNING "Invalid header size: [%zd]\n",
- crypt_stat->num_header_bytes_at_front);
+ crypt_stat->metadata_size);
}
return rc;
}
@@ -1451,8 +1451,7 @@ static int parse_header_metadata(struct ecryptfs_crypt_stat *crypt_stat,
*/
static void set_default_header_data(struct ecryptfs_crypt_stat *crypt_stat)
{
- crypt_stat->num_header_bytes_at_front =
- ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
+ crypt_stat->metadata_size = ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
}
/**
@@ -1606,6 +1605,7 @@ int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry)
ecryptfs_dentry,
ECRYPTFS_VALIDATE_HEADER_SIZE);
if (rc) {
+ memset(page_virt, 0, PAGE_CACHE_SIZE);
rc = ecryptfs_read_xattr_region(page_virt, ecryptfs_inode);
if (rc) {
printk(KERN_DEBUG "Valid eCryptfs headers not found in "
diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 8f006a0d6076..906e803f7f79 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -26,6 +26,7 @@
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/fs_stack.h>
+#include <linux/slab.h>
#include "ecryptfs_kernel.h"
/**
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 542f625312f3..bfc2e0f78f00 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -35,6 +35,7 @@
#include <linux/scatterlist.h>
#include <linux/hash.h>
#include <linux/nsproxy.h>
+#include <linux/backing-dev.h>
/* Version verification for shared data structures w/ userspace */
#define ECRYPTFS_VERSION_MAJOR 0x00
@@ -273,7 +274,7 @@ struct ecryptfs_crypt_stat {
u32 flags;
unsigned int file_version;
size_t iv_bytes;
- size_t num_header_bytes_at_front;
+ size_t metadata_size;
size_t extent_size; /* Data extent size; default is 4096 */
size_t key_size;
size_t extent_shift;
@@ -393,6 +394,7 @@ struct ecryptfs_mount_crypt_stat {
struct ecryptfs_sb_info {
struct super_block *wsi_sb;
struct ecryptfs_mount_crypt_stat mount_crypt_stat;
+ struct backing_dev_info bdi;
};
/* file private data. */
@@ -464,6 +466,14 @@ struct ecryptfs_daemon {
extern struct mutex ecryptfs_daemon_hash_mux;
+static inline size_t
+ecryptfs_lower_header_size(struct ecryptfs_crypt_stat *crypt_stat)
+{
+ if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
+ return 0;
+ return crypt_stat->metadata_size;
+}
+
static inline struct ecryptfs_file_info *
ecryptfs_file_to_private(struct file *file)
{
@@ -651,6 +661,9 @@ int ecryptfs_decrypt_page(struct page *page);
int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry);
int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry);
int ecryptfs_new_file_context(struct dentry *ecryptfs_dentry);
+void ecryptfs_write_crypt_stat_flags(char *page_virt,
+ struct ecryptfs_crypt_stat *crypt_stat,
+ size_t *written);
int ecryptfs_read_and_validate_header_region(char *data,
struct inode *ecryptfs_inode);
int ecryptfs_read_and_validate_xattr_region(char *page_virt,
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 678172b61be2..e7440a6f5ebf 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -25,6 +25,7 @@
#include <linux/file.h>
#include <linux/poll.h>
+#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/pagemap.h>
#include <linux/security.h>
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 4a430ab4115c..e2d4418affac 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -31,6 +31,7 @@
#include <linux/mount.h>
#include <linux/crypto.h>
#include <linux/fs_stack.h>
+#include <linux/slab.h>
#include <asm/unaligned.h>
#include "ecryptfs_kernel.h"
@@ -323,6 +324,7 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry,
rc = ecryptfs_read_and_validate_header_region(page_virt,
ecryptfs_dentry->d_inode);
if (rc) {
+ memset(page_virt, 0, PAGE_CACHE_SIZE);
rc = ecryptfs_read_and_validate_xattr_region(page_virt,
ecryptfs_dentry);
if (rc) {
@@ -335,7 +337,7 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry,
ecryptfs_dentry->d_sb)->mount_crypt_stat;
if (mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED) {
if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
- file_size = (crypt_stat->num_header_bytes_at_front
+ file_size = (crypt_stat->metadata_size
+ i_size_read(lower_dentry->d_inode));
else
file_size = i_size_read(lower_dentry->d_inode);
@@ -387,9 +389,9 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
mutex_unlock(&lower_dir_dentry->d_inode->i_mutex);
if (IS_ERR(lower_dentry)) {
rc = PTR_ERR(lower_dentry);
- printk(KERN_ERR "%s: lookup_one_len() returned [%d] on "
- "lower_dentry = [%s]\n", __func__, rc,
- ecryptfs_dentry->d_name.name);
+ ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned "
+ "[%d] on lower_dentry = [%s]\n", __func__, rc,
+ encrypted_and_encoded_name);
goto out_d_drop;
}
if (lower_dentry->d_inode)
@@ -416,9 +418,9 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
mutex_unlock(&lower_dir_dentry->d_inode->i_mutex);
if (IS_ERR(lower_dentry)) {
rc = PTR_ERR(lower_dentry);
- printk(KERN_ERR "%s: lookup_one_len() returned [%d] on "
- "lower_dentry = [%s]\n", __func__, rc,
- encrypted_and_encoded_name);
+ ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned "
+ "[%d] on lower_dentry = [%s]\n", __func__, rc,
+ encrypted_and_encoded_name);
goto out_d_drop;
}
lookup_and_interpose:
@@ -455,8 +457,8 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,
rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb, 0);
if (rc)
goto out_lock;
- fsstack_copy_attr_times(dir, lower_new_dentry->d_inode);
- fsstack_copy_inode_size(dir, lower_new_dentry->d_inode);
+ fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
+ fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
old_dentry->d_inode->i_nlink =
ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink;
i_size_write(new_dentry->d_inode, file_size_save);
@@ -647,38 +649,17 @@ out_lock:
return rc;
}
-static int
-ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
+static int ecryptfs_readlink_lower(struct dentry *dentry, char **buf,
+ size_t *bufsiz)
{
+ struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
char *lower_buf;
- size_t lower_bufsiz;
- struct dentry *lower_dentry;
- struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
- char *plaintext_name;
- size_t plaintext_name_size;
+ size_t lower_bufsiz = PATH_MAX;
mm_segment_t old_fs;
int rc;
- lower_dentry = ecryptfs_dentry_to_lower(dentry);
- if (!lower_dentry->d_inode->i_op->readlink) {
- rc = -EINVAL;
- goto out;
- }
- mount_crypt_stat = &ecryptfs_superblock_to_private(
- dentry->d_sb)->mount_crypt_stat;
- /*
- * If the lower filename is encrypted, it will result in a significantly
- * longer name. If needed, truncate the name after decode and decrypt.
- */
- if (mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES)
- lower_bufsiz = PATH_MAX;
- else
- lower_bufsiz = bufsiz;
- /* Released in this function */
lower_buf = kmalloc(lower_bufsiz, GFP_KERNEL);
- if (lower_buf == NULL) {
- printk(KERN_ERR "%s: Out of memory whilst attempting to "
- "kmalloc [%zd] bytes\n", __func__, lower_bufsiz);
+ if (!lower_buf) {
rc = -ENOMEM;
goto out;
}
@@ -688,29 +669,31 @@ ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
(char __user *)lower_buf,
lower_bufsiz);
set_fs(old_fs);
- if (rc >= 0) {
- rc = ecryptfs_decode_and_decrypt_filename(&plaintext_name,
- &plaintext_name_size,
- dentry, lower_buf,
- rc);
- if (rc) {
- printk(KERN_ERR "%s: Error attempting to decode and "
- "decrypt filename; rc = [%d]\n", __func__,
- rc);
- goto out_free_lower_buf;
- }
- /* Check for bufsiz <= 0 done in sys_readlinkat() */
- rc = copy_to_user(buf, plaintext_name,
- min((size_t) bufsiz, plaintext_name_size));
- if (rc)
- rc = -EFAULT;
- else
- rc = plaintext_name_size;
- kfree(plaintext_name);
- fsstack_copy_attr_atime(dentry->d_inode, lower_dentry->d_inode);
- }
-out_free_lower_buf:
+ if (rc < 0)
+ goto out;
+ lower_bufsiz = rc;
+ rc = ecryptfs_decode_and_decrypt_filename(buf, bufsiz, dentry,
+ lower_buf, lower_bufsiz);
+out:
kfree(lower_buf);
+ return rc;
+}
+
+static int
+ecryptfs_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
+{
+ char *kbuf;
+ size_t kbufsiz, copied;
+ int rc;
+
+ rc = ecryptfs_readlink_lower(dentry, &kbuf, &kbufsiz);
+ if (rc)
+ goto out;
+ copied = min_t(size_t, bufsiz, kbufsiz);
+ rc = copy_to_user(buf, kbuf, copied) ? -EFAULT : copied;
+ kfree(kbuf);
+ fsstack_copy_attr_atime(dentry->d_inode,
+ ecryptfs_dentry_to_lower(dentry)->d_inode);
out:
return rc;
}
@@ -768,7 +751,7 @@ upper_size_to_lower_size(struct ecryptfs_crypt_stat *crypt_stat,
{
loff_t lower_size;
- lower_size = crypt_stat->num_header_bytes_at_front;
+ lower_size = ecryptfs_lower_header_size(crypt_stat);
if (upper_size != 0) {
loff_t num_extents;
@@ -1015,6 +998,28 @@ out:
return rc;
}
+int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry,
+ struct kstat *stat)
+{
+ struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
+ int rc = 0;
+
+ mount_crypt_stat = &ecryptfs_superblock_to_private(
+ dentry->d_sb)->mount_crypt_stat;
+ generic_fillattr(dentry->d_inode, stat);
+ if (mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES) {
+ char *target;
+ size_t targetsiz;
+
+ rc = ecryptfs_readlink_lower(dentry, &target, &targetsiz);
+ if (!rc) {
+ kfree(target);
+ stat->size = targetsiz;
+ }
+ }
+ return rc;
+}
+
int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat)
{
@@ -1039,7 +1044,7 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
lower_dentry = ecryptfs_dentry_to_lower(dentry);
if (!lower_dentry->d_inode->i_op->setxattr) {
- rc = -ENOSYS;
+ rc = -EOPNOTSUPP;
goto out;
}
mutex_lock(&lower_dentry->d_inode->i_mutex);
@@ -1057,7 +1062,7 @@ ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,
int rc = 0;
if (!lower_dentry->d_inode->i_op->getxattr) {
- rc = -ENOSYS;
+ rc = -EOPNOTSUPP;
goto out;
}
mutex_lock(&lower_dentry->d_inode->i_mutex);
@@ -1084,7 +1089,7 @@ ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size)
lower_dentry = ecryptfs_dentry_to_lower(dentry);
if (!lower_dentry->d_inode->i_op->listxattr) {
- rc = -ENOSYS;
+ rc = -EOPNOTSUPP;
goto out;
}
mutex_lock(&lower_dentry->d_inode->i_mutex);
@@ -1101,7 +1106,7 @@ static int ecryptfs_removexattr(struct dentry *dentry, const char *name)
lower_dentry = ecryptfs_dentry_to_lower(dentry);
if (!lower_dentry->d_inode->i_op->removexattr) {
- rc = -ENOSYS;
+ rc = -EOPNOTSUPP;
goto out;
}
mutex_lock(&lower_dentry->d_inode->i_mutex);
@@ -1132,6 +1137,7 @@ const struct inode_operations ecryptfs_symlink_iops = {
.put_link = ecryptfs_put_link,
.permission = ecryptfs_permission,
.setattr = ecryptfs_setattr,
+ .getattr = ecryptfs_getattr_link,
.setxattr = ecryptfs_setxattr,
.getxattr = ecryptfs_getxattr,
.listxattr = ecryptfs_listxattr,
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index a0a7847567e9..89c5476506ef 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -32,6 +32,7 @@
#include <linux/random.h>
#include <linux/crypto.h>
#include <linux/scatterlist.h>
+#include <linux/slab.h>
#include "ecryptfs_kernel.h"
/**
diff --git a/fs/ecryptfs/kthread.c b/fs/ecryptfs/kthread.c
index e14cf7e588db..d8c3a373aafa 100644
--- a/fs/ecryptfs/kthread.c
+++ b/fs/ecryptfs/kthread.c
@@ -22,6 +22,7 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
+#include <linux/slab.h>
#include <linux/wait.h>
#include <linux/mount.h>
#include "ecryptfs_kernel.h"
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index ea2f92101dfe..760983d0f25e 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -35,6 +35,7 @@
#include <linux/key.h>
#include <linux/parser.h>
#include <linux/fs_stack.h>
+#include <linux/slab.h>
#include "ecryptfs_kernel.h"
/**
@@ -496,17 +497,25 @@ struct kmem_cache *ecryptfs_sb_info_cache;
static int
ecryptfs_fill_super(struct super_block *sb, void *raw_data, int silent)
{
+ struct ecryptfs_sb_info *esi;
int rc = 0;
/* Released in ecryptfs_put_super() */
ecryptfs_set_superblock_private(sb,
kmem_cache_zalloc(ecryptfs_sb_info_cache,
GFP_KERNEL));
- if (!ecryptfs_superblock_to_private(sb)) {
+ esi = ecryptfs_superblock_to_private(sb);
+ if (!esi) {
ecryptfs_printk(KERN_WARNING, "Out of memory\n");
rc = -ENOMEM;
goto out;
}
+
+ rc = bdi_setup_and_register(&esi->bdi, "ecryptfs", BDI_CAP_MAP_COPY);
+ if (rc)
+ goto out;
+
+ sb->s_bdi = &esi->bdi;
sb->s_op = &ecryptfs_sops;
/* Released through deactivate_super(sb) from get_sb_nodev */
sb->s_root = d_alloc(NULL, &(const struct qstr) {
diff --git a/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c
index f1c17e87c5fb..2d8dbce9d485 100644
--- a/fs/ecryptfs/messaging.c
+++ b/fs/ecryptfs/messaging.c
@@ -20,6 +20,7 @@
* 02111-1307, USA.
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/user_namespace.h>
#include <linux/nsproxy.h>
#include "ecryptfs_kernel.h"
diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
index 4ec8f61ccf5a..3745f612bcd4 100644
--- a/fs/ecryptfs/miscdev.c
+++ b/fs/ecryptfs/miscdev.c
@@ -24,6 +24,7 @@
#include <linux/random.h>
#include <linux/miscdevice.h>
#include <linux/poll.h>
+#include <linux/slab.h>
#include <linux/wait.h>
#include <linux/module.h>
#include "ecryptfs_kernel.h"
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index df4ce99d0597..2ee9a3a7b68c 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -32,6 +32,7 @@
#include <linux/file.h>
#include <linux/crypto.h>
#include <linux/scatterlist.h>
+#include <linux/slab.h>
#include <asm/unaligned.h>
#include "ecryptfs_kernel.h"
@@ -82,6 +83,19 @@ out:
return rc;
}
+static void strip_xattr_flag(char *page_virt,
+ struct ecryptfs_crypt_stat *crypt_stat)
+{
+ if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) {
+ size_t written;
+
+ crypt_stat->flags &= ~ECRYPTFS_METADATA_IN_XATTR;
+ ecryptfs_write_crypt_stat_flags(page_virt, crypt_stat,
+ &written);
+ crypt_stat->flags |= ECRYPTFS_METADATA_IN_XATTR;
+ }
+}
+
/**
* Header Extent:
* Octets 0-7: Unencrypted file size (big-endian)
@@ -97,19 +111,6 @@ out:
* (big-endian)
* Octet 26: Begin RFC 2440 authentication token packet set
*/
-static void set_header_info(char *page_virt,
- struct ecryptfs_crypt_stat *crypt_stat)
-{
- size_t written;
- size_t save_num_header_bytes_at_front =
- crypt_stat->num_header_bytes_at_front;
-
- crypt_stat->num_header_bytes_at_front =
- ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;
- ecryptfs_write_header_metadata(page_virt + 20, crypt_stat, &written);
- crypt_stat->num_header_bytes_at_front =
- save_num_header_bytes_at_front;
-}
/**
* ecryptfs_copy_up_encrypted_with_header
@@ -135,8 +136,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
* num_extents_per_page)
+ extent_num_in_page);
size_t num_header_extents_at_front =
- (crypt_stat->num_header_bytes_at_front
- / crypt_stat->extent_size);
+ (crypt_stat->metadata_size / crypt_stat->extent_size);
if (view_extent_num < num_header_extents_at_front) {
/* This is a header extent */
@@ -146,9 +146,14 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
memset(page_virt, 0, PAGE_CACHE_SIZE);
/* TODO: Support more than one header extent */
if (view_extent_num == 0) {
+ size_t written;
+
rc = ecryptfs_read_xattr_region(
page_virt, page->mapping->host);
- set_header_info(page_virt, crypt_stat);
+ strip_xattr_flag(page_virt + 16, crypt_stat);
+ ecryptfs_write_header_metadata(page_virt + 20,
+ crypt_stat,
+ &written);
}
kunmap_atomic(page_virt, KM_USER0);
flush_dcache_page(page);
@@ -161,7 +166,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
/* This is an encrypted data extent */
loff_t lower_offset =
((view_extent_num * crypt_stat->extent_size)
- - crypt_stat->num_header_bytes_at_front);
+ - crypt_stat->metadata_size);
rc = ecryptfs_read_lower_page_segment(
page, (lower_offset >> PAGE_CACHE_SHIFT),
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index b15a43a80ab7..0c0ae491d231 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -26,6 +26,7 @@
#include <linux/fs.h>
#include <linux/mount.h>
#include <linux/key.h>
+#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/smp_lock.h>
#include <linux/file.h>
@@ -85,7 +86,6 @@ static void ecryptfs_destroy_inode(struct inode *inode)
if (lower_dentry->d_inode) {
fput(inode_info->lower_file);
inode_info->lower_file = NULL;
- d_drop(lower_dentry);
}
}
ecryptfs_destroy_crypt_stat(&inode_info->crypt_stat);
@@ -122,6 +122,7 @@ static void ecryptfs_put_super(struct super_block *sb)
lock_kernel();
ecryptfs_destroy_mount_crypt_stat(&sb_info->mount_crypt_stat);
+ bdi_destroy(&sb_info->bdi);
kmem_cache_free(ecryptfs_sb_info_cache, sb_info);
ecryptfs_set_superblock_private(sb, NULL);
diff --git a/fs/eventfd.c b/fs/eventfd.c
index 7758cc382ef0..6bd3f76fdf88 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -11,6 +11,7 @@
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/anon_inodes.h>
diff --git a/fs/exofs/exofs.h b/fs/exofs/exofs.h
index 8442e353309f..22721b2fd890 100644
--- a/fs/exofs/exofs.h
+++ b/fs/exofs/exofs.h
@@ -35,6 +35,7 @@
#include <linux/fs.h>
#include <linux/time.h>
+#include <linux/backing-dev.h>
#include "common.h"
/* FIXME: Remove once pnfs hits mainline
@@ -84,6 +85,7 @@ struct exofs_sb_info {
u32 s_next_generation; /* next gen # to use */
atomic_t s_curr_pending; /* number of pending commands */
uint8_t s_cred[OSD_CAP_LEN]; /* credential for the fscb */
+ struct backing_dev_info bdi; /* register our bdi with VFS */
struct pnfs_osd_data_map data_map; /* Default raid to use
* FIXME: Needed ?
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index a17e4b733e35..76d2a79ef93e 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -31,6 +31,7 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <linux/slab.h>
#include <linux/writeback.h>
#include <linux/buffer_head.h>
#include <scsi/scsi_device.h>
diff --git a/fs/exofs/ios.c b/fs/exofs/ios.c
index 5293bc411d17..4337cad7777b 100644
--- a/fs/exofs/ios.c
+++ b/fs/exofs/ios.c
@@ -22,6 +22,7 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <linux/slab.h>
#include <scsi/scsi_device.h>
#include <asm/div64.h>
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 6cf5e4e84d61..03149b9a5178 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -37,6 +37,7 @@
#include <linux/vfs.h>
#include <linux/random.h>
#include <linux/exportfs.h>
+#include <linux/slab.h>
#include "exofs.h"
@@ -301,6 +302,7 @@ static void exofs_put_super(struct super_block *sb)
_exofs_print_device("Unmounting", NULL, sbi->layout.s_ods[0],
sbi->layout.s_pid);
+ bdi_destroy(&sbi->bdi);
exofs_free_sbi(sbi);
sb->s_fs_info = NULL;
}
@@ -545,6 +547,10 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
if (!sbi)
return -ENOMEM;
+ ret = bdi_setup_and_register(&sbi->bdi, "exofs", BDI_CAP_MAP_COPY);
+ if (ret)
+ goto free_bdi;
+
/* use mount options to fill superblock */
od = osduld_path_lookup(opts->dev_name);
if (IS_ERR(od)) {
@@ -611,6 +617,7 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
}
/* set up operation vectors */
+ sb->s_bdi = &sbi->bdi;
sb->s_fs_info = sbi;
sb->s_op = &exofs_sops;
sb->s_export_op = &exofs_export_ops;
@@ -642,6 +649,8 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
return 0;
free_sbi:
+ bdi_destroy(&sbi->bdi);
+free_bdi:
EXOFS_ERR("Unable to mount exofs on %s pid=0x%llx err=%d\n",
opts->dev_name, sbi->layout.s_pid, ret);
exofs_free_sbi(sbi);
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 1d081f0cfec2..3cf038c055d7 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -13,6 +13,7 @@
#include "ext2.h"
#include <linux/quotaops.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/buffer_head.h>
#include <linux/capability.h>
diff --git a/fs/ext2/symlink.c b/fs/ext2/symlink.c
index 4e2426e22bbe..565cf817bbf1 100644
--- a/fs/ext2/symlink.c
+++ b/fs/ext2/symlink.c
@@ -32,6 +32,7 @@ const struct inode_operations ext2_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
+ .setattr = ext2_setattr,
#ifdef CONFIG_EXT2_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
@@ -43,6 +44,7 @@ const struct inode_operations ext2_symlink_inode_operations = {
const struct inode_operations ext2_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = ext2_follow_link,
+ .setattr = ext2_setattr,
#ifdef CONFIG_EXT2_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c
index c8155845ac05..b118c6383c6d 100644
--- a/fs/ext2/xattr_security.c
+++ b/fs/ext2/xattr_security.c
@@ -4,6 +4,7 @@
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/ext2_fs.h>
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 161da2d3f890..a177122a1b25 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -14,6 +14,7 @@
#include <linux/time.h>
#include <linux/capability.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index ef9008b885b5..0d0e97ed3ff6 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -582,7 +582,9 @@ got:
inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
- ei->i_state = EXT3_STATE_NEW;
+ ei->i_state_flags = 0;
+ ext3_set_inode_state(inode, EXT3_STATE_NEW);
+
ei->i_extra_isize =
(EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) ?
sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 7f920b7263a4..ea33bdf0a300 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -2811,7 +2811,7 @@ struct inode *ext3_iget(struct super_block *sb, unsigned long ino)
inode->i_mtime.tv_sec = (signed)le32_to_cpu(raw_inode->i_mtime);
inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec = inode->i_mtime.tv_nsec = 0;
- ei->i_state = 0;
+ ei->i_state_flags = 0;
ei->i_dir_start_lookup = 0;
ei->i_dtime = le32_to_cpu(raw_inode->i_dtime);
/* We now have enough fields to check if the inode was active or not.
diff --git a/fs/ext3/symlink.c b/fs/ext3/symlink.c
index ff7b4ccd8983..7c4898207776 100644
--- a/fs/ext3/symlink.c
+++ b/fs/ext3/symlink.c
@@ -34,6 +34,7 @@ const struct inode_operations ext3_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
+ .setattr = ext3_setattr,
#ifdef CONFIG_EXT3_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
@@ -45,6 +46,7 @@ const struct inode_operations ext3_symlink_inode_operations = {
const struct inode_operations ext3_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = ext3_follow_link,
+ .setattr = ext3_setattr,
#ifdef CONFIG_EXT3_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c
index 474348788dd9..3af91f476dff 100644
--- a/fs/ext3/xattr_security.c
+++ b/fs/ext3/xattr_security.c
@@ -4,6 +4,7 @@
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/ext3_jbd.h>
diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index 983f0e127493..538c48655084 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -18,6 +18,7 @@
#include <linux/pagemap.h>
#include <linux/blkdev.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include "ext4.h"
struct ext4_system_zone {
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 94c8ee81f5e1..236b834b4ca8 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3879,6 +3879,7 @@ static int ext4_xattr_fiemap(struct inode *inode,
physical += offset;
length = EXT4_SB(inode->i_sb)->s_inode_size - offset;
flags |= FIEMAP_EXTENT_DATA_INLINE;
+ brelse(iloc.bh);
} else { /* external block */
physical = EXT4_I(inode)->i_file_acl << blockbits;
length = inode->i_sb->s_blocksize;
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 361c0b9962a8..57f6eef6ccd6 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -263,7 +263,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
ext4_group_t f;
f = ext4_flex_group(sbi, block_group);
- atomic_dec(&sbi->s_flex_groups[f].free_inodes);
+ atomic_dec(&sbi->s_flex_groups[f].used_dirs);
}
}
@@ -773,7 +773,7 @@ static int ext4_claim_inode(struct super_block *sb,
if (sbi->s_log_groups_per_flex) {
ext4_group_t f = ext4_flex_group(sbi, group);
- atomic_inc(&sbi->s_flex_groups[f].free_inodes);
+ atomic_inc(&sbi->s_flex_groups[f].used_dirs);
}
}
gdp->bg_checksum = ext4_group_desc_csum(sbi, group, gdp);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 986120f30066..81d605412844 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -39,6 +39,7 @@
#include <linux/bio.h>
#include <linux/workqueue.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include "ext4_jbd2.h"
#include "xattr.h"
@@ -1035,7 +1036,7 @@ static int ext4_indirect_calc_metadata_amount(struct inode *inode,
sector_t lblock)
{
struct ext4_inode_info *ei = EXT4_I(inode);
- int dind_mask = EXT4_ADDR_PER_BLOCK(inode->i_sb) - 1;
+ sector_t dind_mask = ~((sector_t)EXT4_ADDR_PER_BLOCK(inode->i_sb) - 1);
int blk_bits;
if (lblock < EXT4_NDIR_BLOCKS)
@@ -1050,7 +1051,7 @@ static int ext4_indirect_calc_metadata_amount(struct inode *inode,
}
ei->i_da_metadata_calc_last_lblock = lblock & dind_mask;
ei->i_da_metadata_calc_len = 1;
- blk_bits = roundup_pow_of_two(lblock + 1);
+ blk_bits = order_base_2(lblock);
return (blk_bits / EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb)) + 1;
}
@@ -5374,7 +5375,7 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
} else {
struct ext4_iloc iloc;
- err = ext4_get_inode_loc(inode, &iloc);
+ err = __ext4_get_inode_loc(inode, &iloc, 0);
if (err)
return err;
if (wbc->sync_mode == WB_SYNC_ALL)
@@ -5385,6 +5386,7 @@ int ext4_write_inode(struct inode *inode, struct writeback_control *wbc)
(unsigned long long)iloc.bh->b_blocknr);
err = -EIO;
}
+ brelse(iloc.bh);
}
return err;
}
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 54df209d2eed..b423a364dca3 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -23,6 +23,7 @@
#include "mballoc.h"
#include <linux/debugfs.h>
+#include <linux/slab.h>
#include <trace/events/ext4.h>
/*
@@ -2534,6 +2535,17 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
mb_debug(1, "gonna free %u blocks in group %u (0x%p):",
entry->count, entry->group, entry);
+ if (test_opt(sb, DISCARD)) {
+ ext4_fsblk_t discard_block;
+
+ discard_block = entry->start_blk +
+ ext4_group_first_block_no(sb, entry->group);
+ trace_ext4_discard_blocks(sb,
+ (unsigned long long)discard_block,
+ entry->count);
+ sb_issue_discard(sb, discard_block, entry->count);
+ }
+
err = ext4_mb_load_buddy(sb, entry->group, &e4b);
/* we expect to find existing buddy because it's pinned */
BUG_ON(err != 0);
@@ -2555,16 +2567,6 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
page_cache_release(e4b.bd_bitmap_page);
}
ext4_unlock_group(sb, entry->group);
- if (test_opt(sb, DISCARD)) {
- ext4_fsblk_t discard_block;
-
- discard_block = entry->start_blk +
- ext4_group_first_block_no(sb, entry->group);
- trace_ext4_discard_blocks(sb,
- (unsigned long long)discard_block,
- entry->count);
- sb_issue_discard(sb, discard_block, entry->count);
- }
kmem_cache_free(ext4_free_ext_cachep, entry);
ext4_mb_release_desc(&e4b);
}
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 8b87bd0eac95..34dcfc52ef44 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -13,6 +13,7 @@
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include "ext4_jbd2.h"
#include "ext4_extents.h"
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index aa5fe28d180f..d1fc662cc311 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -15,6 +15,7 @@
#include <linux/fs.h>
#include <linux/quotaops.h>
+#include <linux/slab.h>
#include "ext4_jbd2.h"
#include "ext4_extents.h"
#include "ext4.h"
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index ba191dae8730..e14d22c170d5 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -68,7 +68,21 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf);
static int ext4_unfreeze(struct super_block *sb);
static void ext4_write_super(struct super_block *sb);
static int ext4_freeze(struct super_block *sb);
+static int ext4_get_sb(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *data, struct vfsmount *mnt);
+#if !defined(CONFIG_EXT3_FS) && !defined(CONFIG_EXT3_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
+static struct file_system_type ext3_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "ext3",
+ .get_sb = ext4_get_sb,
+ .kill_sb = kill_block_super,
+ .fs_flags = FS_REQUIRES_DEV,
+};
+#define IS_EXT3_SB(sb) ((sb)->s_bdev->bd_holder == &ext3_fs_type)
+#else
+#define IS_EXT3_SB(sb) (0)
+#endif
ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
struct ext4_group_desc *bg)
@@ -2539,7 +2553,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
* enable delayed allocation by default
* Use -o nodelalloc to turn it off
*/
- set_opt(sbi->s_mount_opt, DELALLOC);
+ if (!IS_EXT3_SB(sb))
+ set_opt(sbi->s_mount_opt, DELALLOC);
if (!parse_options((char *) data, sb, &journal_devnum,
&journal_ioprio, NULL, 0))
@@ -4068,7 +4083,7 @@ static int ext4_get_sb(struct file_system_type *fs_type, int flags,
return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
}
-#if !defined(CONTIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
+#if !defined(CONFIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
static struct file_system_type ext2_fs_type = {
.owner = THIS_MODULE,
.name = "ext2",
@@ -4095,15 +4110,7 @@ static inline void register_as_ext2(void) { }
static inline void unregister_as_ext2(void) { }
#endif
-#if !defined(CONTIG_EXT3_FS) && !defined(CONFIG_EXT3_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
-static struct file_system_type ext3_fs_type = {
- .owner = THIS_MODULE,
- .name = "ext3",
- .get_sb = ext4_get_sb,
- .kill_sb = kill_block_super,
- .fs_flags = FS_REQUIRES_DEV,
-};
-
+#if !defined(CONFIG_EXT3_FS) && !defined(CONFIG_EXT3_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
static inline void register_as_ext3(void)
{
int err = register_filesystem(&ext3_fs_type);
diff --git a/fs/ext4/xattr_security.c b/fs/ext4/xattr_security.c
index 983c253999a7..8b145e98df07 100644
--- a/fs/ext4/xattr_security.c
+++ b/fs/ext4/xattr_security.c
@@ -7,6 +7,7 @@
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/security.h>
+#include <linux/slab.h>
#include "ext4_jbd2.h"
#include "ext4.h"
#include "xattr.h"
diff --git a/fs/fat/cache.c b/fs/fat/cache.c
index 923990e4f16e..113f0a1e565d 100644
--- a/fs/fat/cache.c
+++ b/fs/fat/cache.c
@@ -9,6 +9,7 @@
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/buffer_head.h>
#include "fat.h"
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index c1ef50154868..6fcc7e71fbaa 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -309,7 +309,7 @@ static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,
{
struct fat_mount_options *opts = &MSDOS_SB(dir->i_sb)->options;
wchar_t *ip, *ext_start, *end, *name_start;
- unsigned char base[9], ext[4], buf[8], *p;
+ unsigned char base[9], ext[4], buf[5], *p;
unsigned char charbuf[NLS_MAX_CHARSET_SIZE];
int chl, chi;
int sz = 0, extlen, baselen, i, numtail_baselen, numtail2_baselen;
@@ -467,7 +467,7 @@ static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,
return 0;
}
- i = jiffies & 0xffff;
+ i = jiffies;
sz = (jiffies >> 16) & 0x7;
if (baselen > 2) {
baselen = numtail2_baselen;
@@ -476,7 +476,7 @@ static int vfat_create_shortname(struct inode *dir, struct nls_table *nls,
name_res[baselen + 4] = '~';
name_res[baselen + 5] = '1' + sz;
while (1) {
- sprintf(buf, "%04X", i);
+ snprintf(buf, sizeof(buf), "%04X", i & 0xffff);
memcpy(&name_res[baselen], buf, 4);
if (vfat_find_form(dir, name_res) < 0)
break;
diff --git a/fs/fifo.c b/fs/fifo.c
index f8f97b8b6d44..5d6606ffc2d2 100644
--- a/fs/fifo.c
+++ b/fs/fifo.c
@@ -10,7 +10,6 @@
*/
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/pipe_fs_i.h>
diff --git a/fs/filesystems.c b/fs/filesystems.c
index a24c58e181db..68ba492d8eef 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -10,10 +10,10 @@
#include <linux/fs.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
/*
diff --git a/fs/freevxfs/vxfs_subr.c b/fs/freevxfs/vxfs_subr.c
index ed8f0b0dd880..1429f3ae1e86 100644
--- a/fs/freevxfs/vxfs_subr.c
+++ b/fs/freevxfs/vxfs_subr.c
@@ -33,7 +33,6 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/pagemap.h>
#include "vxfs_extern.h"
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 76fc4d594acb..4b37f7cea4dd 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/spinlock.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/mm.h>
@@ -553,108 +554,85 @@ select_queue:
return ret;
}
-static void unpin_sb_for_writeback(struct super_block **psb)
+static void unpin_sb_for_writeback(struct super_block *sb)
{
- struct super_block *sb = *psb;
-
- if (sb) {
- up_read(&sb->s_umount);
- put_super(sb);
- *psb = NULL;
- }
+ up_read(&sb->s_umount);
+ put_super(sb);
}
+enum sb_pin_state {
+ SB_PINNED,
+ SB_NOT_PINNED,
+ SB_PIN_FAILED
+};
+
/*
* For WB_SYNC_NONE writeback, the caller does not have the sb pinned
* before calling writeback. So make sure that we do pin it, so it doesn't
* go away while we are writing inodes from it.
- *
- * Returns 0 if the super was successfully pinned (or pinning wasn't needed),
- * 1 if we failed.
*/
-static int pin_sb_for_writeback(struct writeback_control *wbc,
- struct inode *inode, struct super_block **psb)
+static enum sb_pin_state pin_sb_for_writeback(struct writeback_control *wbc,
+ struct super_block *sb)
{
- struct super_block *sb = inode->i_sb;
-
- /*
- * If this sb is already pinned, nothing more to do. If not and
- * *psb is non-NULL, unpin the old one first
- */
- if (sb == *psb)
- return 0;
- else if (*psb)
- unpin_sb_for_writeback(psb);
-
/*
* Caller must already hold the ref for this
*/
if (wbc->sync_mode == WB_SYNC_ALL) {
WARN_ON(!rwsem_is_locked(&sb->s_umount));
- return 0;
+ return SB_NOT_PINNED;
}
-
spin_lock(&sb_lock);
sb->s_count++;
if (down_read_trylock(&sb->s_umount)) {
if (sb->s_root) {
spin_unlock(&sb_lock);
- goto pinned;
+ return SB_PINNED;
}
/*
* umounted, drop rwsem again and fall through to failure
*/
up_read(&sb->s_umount);
}
-
sb->s_count--;
spin_unlock(&sb_lock);
- return 1;
-pinned:
- *psb = sb;
- return 0;
+ return SB_PIN_FAILED;
}
-static void writeback_inodes_wb(struct bdi_writeback *wb,
- struct writeback_control *wbc)
+/*
+ * Write a portion of b_io inodes which belong to @sb.
+ * If @wbc->sb != NULL, then find and write all such
+ * inodes. Otherwise write only ones which go sequentially
+ * in reverse order.
+ * Return 1, if the caller writeback routine should be
+ * interrupted. Otherwise return 0.
+ */
+static int writeback_sb_inodes(struct super_block *sb,
+ struct bdi_writeback *wb,
+ struct writeback_control *wbc)
{
- struct super_block *sb = wbc->sb, *pin_sb = NULL;
- const unsigned long start = jiffies; /* livelock avoidance */
-
- spin_lock(&inode_lock);
-
- if (!wbc->for_kupdate || list_empty(&wb->b_io))
- queue_io(wb, wbc->older_than_this);
-
while (!list_empty(&wb->b_io)) {
- struct inode *inode = list_entry(wb->b_io.prev,
- struct inode, i_list);
long pages_skipped;
-
- /*
- * super block given and doesn't match, skip this inode
- */
- if (sb && sb != inode->i_sb) {
+ struct inode *inode = list_entry(wb->b_io.prev,
+ struct inode, i_list);
+ if (wbc->sb && sb != inode->i_sb) {
+ /* super block given and doesn't
+ match, skip this inode */
redirty_tail(inode);
continue;
}
-
+ if (sb != inode->i_sb)
+ /* finish with this superblock */
+ return 0;
if (inode->i_state & (I_NEW | I_WILL_FREE)) {
requeue_io(inode);
continue;
}
-
/*
* Was this inode dirtied after sync_sb_inodes was called?
* This keeps sync from extra jobs and livelock.
*/
- if (inode_dirtied_after(inode, start))
- break;
-
- if (pin_sb_for_writeback(wbc, inode, &pin_sb)) {
- requeue_io(inode);
- continue;
- }
+ if (inode_dirtied_after(inode, wbc->wb_start))
+ return 1;
BUG_ON(inode->i_state & (I_FREEING | I_CLEAR));
__iget(inode);
@@ -673,14 +651,50 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
spin_lock(&inode_lock);
if (wbc->nr_to_write <= 0) {
wbc->more_io = 1;
- break;
+ return 1;
}
if (!list_empty(&wb->b_more_io))
wbc->more_io = 1;
}
+ /* b_io is empty */
+ return 1;
+}
+
+static void writeback_inodes_wb(struct bdi_writeback *wb,
+ struct writeback_control *wbc)
+{
+ int ret = 0;
- unpin_sb_for_writeback(&pin_sb);
+ wbc->wb_start = jiffies; /* livelock avoidance */
+ spin_lock(&inode_lock);
+ if (!wbc->for_kupdate || list_empty(&wb->b_io))
+ queue_io(wb, wbc->older_than_this);
+
+ while (!list_empty(&wb->b_io)) {
+ struct inode *inode = list_entry(wb->b_io.prev,
+ struct inode, i_list);
+ struct super_block *sb = inode->i_sb;
+ enum sb_pin_state state;
+
+ if (wbc->sb && sb != wbc->sb) {
+ /* super block given and doesn't
+ match, skip this inode */
+ redirty_tail(inode);
+ continue;
+ }
+ state = pin_sb_for_writeback(wbc, sb);
+
+ if (state == SB_PIN_FAILED) {
+ requeue_io(inode);
+ continue;
+ }
+ ret = writeback_sb_inodes(sb, wb, wbc);
+ if (state == SB_PINNED)
+ unpin_sb_for_writeback(sb);
+ if (ret)
+ break;
+ }
spin_unlock(&inode_lock);
/* Leave any unwritten inodes on b_io */
}
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c
index 3221a0c7944e..1e1f286dd70e 100644
--- a/fs/fscache/object-list.c
+++ b/fs/fscache/object-list.c
@@ -12,6 +12,7 @@
#define FSCACHE_DEBUG_LEVEL COOKIE
#include <linux/module.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include <linux/key.h>
#include <keys/user-type.h>
#include "internal.h"
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index e513ac599c8e..0b589a9b4ffc 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -53,7 +53,7 @@ const char fscache_object_states_short[FSCACHE_OBJECT__NSTATES][5] = {
static void fscache_object_slow_work_put_ref(struct slow_work *);
static int fscache_object_slow_work_get_ref(struct slow_work *);
static void fscache_object_slow_work_execute(struct slow_work *);
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
static void fscache_object_slow_work_desc(struct slow_work *, struct seq_file *);
#endif
static void fscache_initialise_object(struct fscache_object *);
@@ -69,7 +69,7 @@ const struct slow_work_ops fscache_object_slow_work_ops = {
.get_ref = fscache_object_slow_work_get_ref,
.put_ref = fscache_object_slow_work_put_ref,
.execute = fscache_object_slow_work_execute,
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
.desc = fscache_object_slow_work_desc,
#endif
};
@@ -364,7 +364,7 @@ static void fscache_object_slow_work_execute(struct slow_work *work)
/*
* describe an object for slow-work debugging
*/
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
static void fscache_object_slow_work_desc(struct slow_work *work,
struct seq_file *m)
{
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index 313e79a14266..f17cecafae44 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -14,6 +14,7 @@
#define FSCACHE_DEBUG_LEVEL OPERATION
#include <linux/module.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "internal.h"
atomic_t fscache_op_debug_id;
@@ -500,7 +501,7 @@ static void fscache_op_execute(struct slow_work *work)
/*
* describe an operation for slow-work debugging
*/
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
static void fscache_op_desc(struct slow_work *work, struct seq_file *m)
{
struct fscache_operation *op =
@@ -517,7 +518,7 @@ const struct slow_work_ops fscache_op_slow_work_ops = {
.get_ref = fscache_op_get_ref,
.put_ref = fscache_op_put_ref,
.execute = fscache_op_execute,
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
.desc = fscache_op_desc,
#endif
};
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index c598ea4c4e7d..47aefd376e54 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -14,6 +14,7 @@
#include <linux/fscache-cache.h>
#include <linux/buffer_head.h>
#include <linux/pagevec.h>
+#include <linux/slab.h>
#include "internal.h"
/*
@@ -881,6 +882,7 @@ submit_failed:
goto nobufs;
nobufs_unlock_obj:
+ spin_unlock(&cookie->stores_lock);
spin_unlock(&object->lock);
nobufs:
spin_unlock(&cookie->lock);
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 46435f3aae68..4765190d537f 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -165,8 +165,8 @@ static int fscache_stats_show(struct seq_file *m, void *v)
atomic_read(&fscache_n_object_lookups),
atomic_read(&fscache_n_object_lookups_negative),
atomic_read(&fscache_n_object_lookups_positive),
- atomic_read(&fscache_n_object_lookups_timed_out),
- atomic_read(&fscache_n_object_created));
+ atomic_read(&fscache_n_object_created),
+ atomic_read(&fscache_n_object_lookups_timed_out));
seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
atomic_read(&fscache_n_updates),
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index de792dcf3274..e1f8171278bd 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -44,6 +44,7 @@
#include <linux/magic.h>
#include <linux/miscdevice.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/stat.h>
diff --git a/fs/generic_acl.c b/fs/generic_acl.c
index 55458031e501..fe5df5457656 100644
--- a/fs/generic_acl.c
+++ b/fs/generic_acl.c
@@ -7,6 +7,7 @@
*/
#include <linux/sched.h>
+#include <linux/gfp.h>
#include <linux/fs.h>
#include <linux/generic_acl.h>
#include <linux/posix_acl.h>
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 583e823307ae..5e411d5f4697 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -7,7 +7,6 @@
* of the GNU General Public License version 2.
*/
-#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
diff --git a/fs/gfs2/dentry.c b/fs/gfs2/dentry.c
index 91beddadd388..bb7907bde3d8 100644
--- a/fs/gfs2/dentry.c
+++ b/fs/gfs2/dentry.c
@@ -7,7 +7,6 @@
* of the GNU General Public License version 2.
*/
-#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index d15876e9aa26..c22c21174833 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -7,7 +7,6 @@
* of the GNU General Public License version 2.
*/
-#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 38e3749d476c..49f97d3bb690 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -7,7 +7,6 @@
* of the GNU General Public License version 2.
*/
-#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
index 569b46240f61..0e0470ed34c2 100644
--- a/fs/gfs2/lock_dlm.c
+++ b/fs/gfs2/lock_dlm.c
@@ -9,6 +9,7 @@
#include <linux/fs.h>
#include <linux/dlm.h>
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/gfs2_ondisk.h>
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index b4106ddaaa98..f07119d89557 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -10,6 +10,8 @@
#ifndef __RGRP_DOT_H__
#define __RGRP_DOT_H__
+#include <linux/slab.h>
+
struct gfs2_rgrpd;
struct gfs2_sbd;
struct gfs2_holder;
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 419042f7f0b6..54fd98425991 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -8,7 +8,6 @@
*/
#include <linux/sched.h>
-#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 226f2bfbf16a..53511291fe36 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -7,7 +7,6 @@
* of the GNU General Public License version 2.
*/
-#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
index 0d200068d0af..cdb41a1f6a64 100644
--- a/fs/hfs/bnode.c
+++ b/fs/hfs/bnode.c
@@ -9,6 +9,7 @@
*/
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <linux/swap.h>
#include "btree.h"
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
index 052f214ea6f0..38a0a9917d7f 100644
--- a/fs/hfs/btree.c
+++ b/fs/hfs/btree.c
@@ -9,6 +9,7 @@
*/
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <linux/log2.h>
#include "btree.h"
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 8bbe03c3f6d5..86428f5ac991 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -11,6 +11,7 @@
#include <linux/cdrom.h>
#include <linux/genhd.h>
#include <linux/nls.h>
+#include <linux/slab.h>
#include "hfs_fs.h"
#include "btree.h"
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 5ed7252b7b23..0a81eb7111f3 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -19,6 +19,7 @@
#include <linux/nls.h>
#include <linux/parser.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/vfs.h>
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index 3fcbb0e1f6fc..572628b4b07d 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -15,6 +15,7 @@
#include <linux/nls.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "hfsplus_fs.h"
enum {
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 032604e5ef2c..3a029d8f4cf1 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -11,6 +11,7 @@
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/statfs.h>
+#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/mount.h>
#include "hostfs.h"
diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c
index b6fca543544c..eac5f96323e3 100644
--- a/fs/hpfs/buffer.c
+++ b/fs/hpfs/buffer.c
@@ -6,6 +6,7 @@
* general buffer i/o
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include "hpfs_fn.h"
void hpfs_lock_creation(struct super_block *s)
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 26e3964a4b8c..2338130cceba 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -7,6 +7,7 @@
*/
#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include "hpfs_fn.h"
static int hpfs_dir_release(struct inode *inode, struct file *filp)
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index ff90affb94e1..1042a9bc97f3 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -7,6 +7,7 @@
*/
#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include "hpfs_fn.h"
void hpfs_init_inode(struct inode *i)
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index cadc4ce48656..aa53842c599c 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/bitmap.h>
+#include <linux/slab.h>
/* Mark the filesystem dirty, so that chkdsk checks it when os/2 booted */
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 6c751106c2e5..7faefb4da939 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -228,14 +228,23 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
#ifdef CONFIG_BLOCK
-#define blk_to_logical(inode, blk) (blk << (inode)->i_blkbits)
-#define logical_to_blk(inode, offset) (offset >> (inode)->i_blkbits);
+static inline sector_t logical_to_blk(struct inode *inode, loff_t offset)
+{
+ return (offset >> inode->i_blkbits);
+}
+
+static inline loff_t blk_to_logical(struct inode *inode, sector_t blk)
+{
+ return (blk << inode->i_blkbits);
+}
/**
* __generic_block_fiemap - FIEMAP for block based inodes (no locking)
- * @inode - the inode to map
- * @arg - the pointer to userspace where we copy everything to
- * @get_block - the fs's get_block function
+ * @inode: the inode to map
+ * @fieinfo: the fiemap info struct that will be passed back to userspace
+ * @start: where to start mapping in the inode
+ * @len: how much space to map
+ * @get_block: the fs's get_block function
*
* This does FIEMAP for block based inodes. Basically it will just loop
* through get_block until we hit the number of extents we want to map, or we
@@ -250,58 +259,63 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
*/
int __generic_block_fiemap(struct inode *inode,
- struct fiemap_extent_info *fieinfo, u64 start,
- u64 len, get_block_t *get_block)
+ struct fiemap_extent_info *fieinfo, loff_t start,
+ loff_t len, get_block_t *get_block)
{
- struct buffer_head tmp;
- unsigned long long start_blk;
- long long length = 0, map_len = 0;
+ struct buffer_head map_bh;
+ sector_t start_blk, last_blk;
+ loff_t isize = i_size_read(inode);
u64 logical = 0, phys = 0, size = 0;
u32 flags = FIEMAP_EXTENT_MERGED;
- int ret = 0, past_eof = 0, whole_file = 0;
+ bool past_eof = false, whole_file = false;
+ int ret = 0;
- if ((ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC)))
+ ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
+ if (ret)
return ret;
- start_blk = logical_to_blk(inode, start);
-
- length = (long long)min_t(u64, len, i_size_read(inode));
- if (length < len)
- whole_file = 1;
+ /*
+ * Either the i_mutex or other appropriate locking needs to be held
+ * since we expect isize to not change at all through the duration of
+ * this call.
+ */
+ if (len >= isize) {
+ whole_file = true;
+ len = isize;
+ }
- map_len = length;
+ start_blk = logical_to_blk(inode, start);
+ last_blk = logical_to_blk(inode, start + len - 1);
do {
/*
* we set b_size to the total size we want so it will map as
* many contiguous blocks as possible at once
*/
- memset(&tmp, 0, sizeof(struct buffer_head));
- tmp.b_size = map_len;
+ memset(&map_bh, 0, sizeof(struct buffer_head));
+ map_bh.b_size = len;
- ret = get_block(inode, start_blk, &tmp, 0);
+ ret = get_block(inode, start_blk, &map_bh, 0);
if (ret)
break;
/* HOLE */
- if (!buffer_mapped(&tmp)) {
- length -= blk_to_logical(inode, 1);
+ if (!buffer_mapped(&map_bh)) {
start_blk++;
/*
- * we want to handle the case where there is an
+ * We want to handle the case where there is an
* allocated block at the front of the file, and then
* nothing but holes up to the end of the file properly,
* to make sure that extent at the front gets properly
* marked with FIEMAP_EXTENT_LAST
*/
if (!past_eof &&
- blk_to_logical(inode, start_blk) >=
- blk_to_logical(inode, 0)+i_size_read(inode))
+ blk_to_logical(inode, start_blk) >= isize)
past_eof = 1;
/*
- * first hole after going past the EOF, this is our
+ * First hole after going past the EOF, this is our
* last extent
*/
if (past_eof && size) {
@@ -309,15 +323,18 @@ int __generic_block_fiemap(struct inode *inode,
ret = fiemap_fill_next_extent(fieinfo, logical,
phys, size,
flags);
- break;
+ } else if (size) {
+ ret = fiemap_fill_next_extent(fieinfo, logical,
+ phys, size, flags);
+ size = 0;
}
/* if we have holes up to/past EOF then we're done */
- if (length <= 0 || past_eof)
+ if (start_blk > last_blk || past_eof || ret)
break;
} else {
/*
- * we have gone over the length of what we wanted to
+ * We have gone over the length of what we wanted to
* map, and it wasn't the entire file, so add the extent
* we got last time and exit.
*
@@ -331,7 +348,7 @@ int __generic_block_fiemap(struct inode *inode,
* are good to go, just add the extent to the fieinfo
* and break
*/
- if (length <= 0 && !whole_file) {
+ if (start_blk > last_blk && !whole_file) {
ret = fiemap_fill_next_extent(fieinfo, logical,
phys, size,
flags);
@@ -351,11 +368,10 @@ int __generic_block_fiemap(struct inode *inode,
}
logical = blk_to_logical(inode, start_blk);
- phys = blk_to_logical(inode, tmp.b_blocknr);
- size = tmp.b_size;
+ phys = blk_to_logical(inode, map_bh.b_blocknr);
+ size = map_bh.b_size;
flags = FIEMAP_EXTENT_MERGED;
- length -= tmp.b_size;
start_blk += logical_to_blk(inode, size);
/*
@@ -363,15 +379,13 @@ int __generic_block_fiemap(struct inode *inode,
* soon as we find a hole that the last extent we found
* is marked with FIEMAP_EXTENT_LAST
*/
- if (!past_eof &&
- logical+size >=
- blk_to_logical(inode, 0)+i_size_read(inode))
- past_eof = 1;
+ if (!past_eof && logical + size >= isize)
+ past_eof = true;
}
cond_resched();
} while (1);
- /* if ret is 1 then we just hit the end of the extent array */
+ /* If ret is 1 then we just hit the end of the extent array */
if (ret == 1)
ret = 0;
diff --git a/fs/ioprio.c b/fs/ioprio.c
index c7c0b28d7d21..748cfb92dcc6 100644
--- a/fs/ioprio.c
+++ b/fs/ioprio.c
@@ -19,6 +19,7 @@
* See also Documentation/block/ioprio.txt
*
*/
+#include <linux/gfp.h>
#include <linux/kernel.h>
#include <linux/ioprio.h>
#include <linux/blkdev.h>
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 8ba5441063be..b9ab69b3a482 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -11,6 +11,7 @@
* isofs directory handling functions
*/
#include <linux/smp_lock.h>
+#include <linux/gfp.h>
#include "isofs.h"
int isofs_name_translate(struct iso_directory_record *de, char *new, struct inode *inode)
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index eaa831311c9c..ab438beb867c 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -7,6 +7,7 @@
*/
#include <linux/smp_lock.h>
+#include <linux/gfp.h>
#include "isofs.h"
/*
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 2c90e3ef625f..ecb44c94ba8d 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -17,7 +17,6 @@
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/errno.h>
-#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/bio.h>
diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c
index cb1a49ae605e..54c9bc9e1b17 100644
--- a/fs/jbd/recovery.c
+++ b/fs/jbd/recovery.c
@@ -20,7 +20,6 @@
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/errno.h>
-#include <linux/slab.h>
#endif
/*
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 73063285b13f..049281b7cb89 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -20,7 +20,6 @@
#include <linux/fs.h>
#include <linux/jbd2.h>
#include <linux/errno.h>
-#include <linux/slab.h>
#include <linux/crc32.h>
#endif
diff --git a/fs/jffs2/compr_lzo.c b/fs/jffs2/compr_lzo.c
index 90cb60d09787..cd02acafde8a 100644
--- a/fs/jffs2/compr_lzo.c
+++ b/fs/jffs2/compr_lzo.c
@@ -11,7 +11,6 @@
#include <linux/kernel.h>
#include <linux/sched.h>
-#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/init.h>
#include <linux/lzo.h>
diff --git a/fs/jffs2/compr_zlib.c b/fs/jffs2/compr_zlib.c
index cfd301a5edfc..b46661a42758 100644
--- a/fs/jffs2/compr_zlib.c
+++ b/fs/jffs2/compr_zlib.c
@@ -14,7 +14,6 @@
#endif
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/zlib.h>
#include <linux/zutil.h>
#include "nodelist.h"
diff --git a/fs/jffs2/debug.c b/fs/jffs2/debug.c
index 5544d31c066b..ec3538413926 100644
--- a/fs/jffs2/debug.c
+++ b/fs/jffs2/debug.c
@@ -15,6 +15,7 @@
#include <linux/crc32.h>
#include <linux/jffs2.h>
#include <linux/mtd/mtd.h>
+#include <linux/slab.h>
#include "nodelist.h"
#include "debug.h"
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index b7b74e299142..e7291c161a19 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -10,7 +10,6 @@
*/
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/time.h>
#include <linux/pagemap.h>
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c
index 87c6f555e1a0..af02bd138469 100644
--- a/fs/jffs2/nodelist.c
+++ b/fs/jffs2/nodelist.c
@@ -15,7 +15,6 @@
#include <linux/mtd/mtd.h>
#include <linux/rbtree.h>
#include <linux/crc32.h>
-#include <linux/slab.h>
#include <linux/pagemap.h>
#include "nodelist.h"
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 21a052915aa9..191359dde4e1 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -10,7 +10,6 @@
*/
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/mtd/mtd.h>
#include <linux/compiler.h>
#include <linux/sched.h> /* For cond_resched() */
diff --git a/fs/jffs2/symlink.c b/fs/jffs2/symlink.c
index 4ec11e8bda8c..b955626071c2 100644
--- a/fs/jffs2/symlink.c
+++ b/fs/jffs2/symlink.c
@@ -10,7 +10,6 @@
*/
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/namei.h>
#include "nodelist.h"
diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c
index ca29440e9435..c819eb0e982d 100644
--- a/fs/jffs2/write.c
+++ b/fs/jffs2/write.c
@@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/crc32.h>
-#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/mtd/mtd.h>
#include "nodelist.h"
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 213169780b6c..1057a4998e4e 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -19,6 +19,7 @@
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
#include "jfs_incore.h"
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 9dd126276c9f..ed9ba6fe04f5 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -61,7 +61,7 @@ struct inode *jfs_iget(struct super_block *sb, unsigned long ino)
inode->i_op = &page_symlink_inode_operations;
inode->i_mapping->a_ops = &jfs_aops;
} else {
- inode->i_op = &jfs_symlink_inode_operations;
+ inode->i_op = &jfs_fast_symlink_inode_operations;
/*
* The inline data should be null-terminated, but
* don't let on-disk corruption crash the kernel
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index d9b031cf69f5..9e2f6a721668 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -17,6 +17,7 @@
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include "jfs_incore.h"
#include "jfs_superblock.h"
#include "jfs_dmap.h"
@@ -195,7 +196,7 @@ int dbMount(struct inode *ipbmap)
bmp->db_maxag = le32_to_cpu(dbmp_le->dn_maxag);
bmp->db_agpref = le32_to_cpu(dbmp_le->dn_agpref);
bmp->db_aglevel = le32_to_cpu(dbmp_le->dn_aglevel);
- bmp->db_agheigth = le32_to_cpu(dbmp_le->dn_agheigth);
+ bmp->db_agheight = le32_to_cpu(dbmp_le->dn_agheight);
bmp->db_agwidth = le32_to_cpu(dbmp_le->dn_agwidth);
bmp->db_agstart = le32_to_cpu(dbmp_le->dn_agstart);
bmp->db_agl2size = le32_to_cpu(dbmp_le->dn_agl2size);
@@ -287,7 +288,7 @@ int dbSync(struct inode *ipbmap)
dbmp_le->dn_maxag = cpu_to_le32(bmp->db_maxag);
dbmp_le->dn_agpref = cpu_to_le32(bmp->db_agpref);
dbmp_le->dn_aglevel = cpu_to_le32(bmp->db_aglevel);
- dbmp_le->dn_agheigth = cpu_to_le32(bmp->db_agheigth);
+ dbmp_le->dn_agheight = cpu_to_le32(bmp->db_agheight);
dbmp_le->dn_agwidth = cpu_to_le32(bmp->db_agwidth);
dbmp_le->dn_agstart = cpu_to_le32(bmp->db_agstart);
dbmp_le->dn_agl2size = cpu_to_le32(bmp->db_agl2size);
@@ -1440,7 +1441,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
* tree index of this allocation group within the control page.
*/
agperlev =
- (1 << (L2LPERCTL - (bmp->db_agheigth << 1))) / bmp->db_agwidth;
+ (1 << (L2LPERCTL - (bmp->db_agheight << 1))) / bmp->db_agwidth;
ti = bmp->db_agstart + bmp->db_agwidth * (agno & (agperlev - 1));
/* dmap control page trees fan-out by 4 and a single allocation
@@ -1459,7 +1460,7 @@ dbAllocAG(struct bmap * bmp, int agno, s64 nblocks, int l2nb, s64 * results)
* the subtree to find the leftmost leaf that describes this
* free space.
*/
- for (k = bmp->db_agheigth; k > 0; k--) {
+ for (k = bmp->db_agheight; k > 0; k--) {
for (n = 0, m = (ti << 2) + 1; n < 4; n++) {
if (l2nb <= dcp->stree[m + n]) {
ti = m + n;
@@ -3606,7 +3607,7 @@ void dbFinalizeBmap(struct inode *ipbmap)
}
/*
- * compute db_aglevel, db_agheigth, db_width, db_agstart:
+ * compute db_aglevel, db_agheight, db_width, db_agstart:
* an ag is covered in aglevel dmapctl summary tree,
* at agheight level height (from leaf) with agwidth number of nodes
* each, which starts at agstart index node of the smmary tree node
@@ -3615,9 +3616,9 @@ void dbFinalizeBmap(struct inode *ipbmap)
bmp->db_aglevel = BMAPSZTOLEV(bmp->db_agsize);
l2nl =
bmp->db_agl2size - (L2BPERDMAP + bmp->db_aglevel * L2LPERCTL);
- bmp->db_agheigth = l2nl >> 1;
- bmp->db_agwidth = 1 << (l2nl - (bmp->db_agheigth << 1));
- for (i = 5 - bmp->db_agheigth, bmp->db_agstart = 0, n = 1; i > 0;
+ bmp->db_agheight = l2nl >> 1;
+ bmp->db_agwidth = 1 << (l2nl - (bmp->db_agheight << 1));
+ for (i = 5 - bmp->db_agheight, bmp->db_agstart = 0, n = 1; i > 0;
i--) {
bmp->db_agstart += n;
n <<= 2;
diff --git a/fs/jfs/jfs_dmap.h b/fs/jfs/jfs_dmap.h
index 1a6eb41569bc..6dcb906c55d8 100644
--- a/fs/jfs/jfs_dmap.h
+++ b/fs/jfs/jfs_dmap.h
@@ -210,7 +210,7 @@ struct dbmap_disk {
__le32 dn_maxag; /* 4: max active alloc group number */
__le32 dn_agpref; /* 4: preferred alloc group (hint) */
__le32 dn_aglevel; /* 4: dmapctl level holding the AG */
- __le32 dn_agheigth; /* 4: height in dmapctl of the AG */
+ __le32 dn_agheight; /* 4: height in dmapctl of the AG */
__le32 dn_agwidth; /* 4: width in dmapctl of the AG */
__le32 dn_agstart; /* 4: start tree index at AG height */
__le32 dn_agl2size; /* 4: l2 num of blks per alloc group */
@@ -229,7 +229,7 @@ struct dbmap {
int dn_maxag; /* max active alloc group number */
int dn_agpref; /* preferred alloc group (hint) */
int dn_aglevel; /* dmapctl level holding the AG */
- int dn_agheigth; /* height in dmapctl of the AG */
+ int dn_agheight; /* height in dmapctl of the AG */
int dn_agwidth; /* width in dmapctl of the AG */
int dn_agstart; /* start tree index at AG height */
int dn_agl2size; /* l2 num of blks per alloc group */
@@ -255,7 +255,7 @@ struct bmap {
#define db_agsize db_bmap.dn_agsize
#define db_agl2size db_bmap.dn_agl2size
#define db_agwidth db_bmap.dn_agwidth
-#define db_agheigth db_bmap.dn_agheigth
+#define db_agheight db_bmap.dn_agheight
#define db_agstart db_bmap.dn_agstart
#define db_numag db_bmap.dn_numag
#define db_maxlevel db_bmap.dn_maxlevel
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index 0e4623be70ce..9197a1b0d02d 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -102,6 +102,7 @@
#include <linux/fs.h>
#include <linux/quotaops.h>
+#include <linux/slab.h>
#include "jfs_incore.h"
#include "jfs_superblock.h"
#include "jfs_filsys.h"
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 0fc30407f039..f8332dc8eeb2 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -45,6 +45,7 @@
#include <linux/buffer_head.h>
#include <linux/pagemap.h>
#include <linux/quotaops.h>
+#include <linux/slab.h>
#include "jfs_incore.h"
#include "jfs_inode.h"
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 79e2c79661df..9e6bda30a6e8 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -48,5 +48,6 @@ extern const struct file_operations jfs_dir_operations;
extern const struct inode_operations jfs_file_inode_operations;
extern const struct file_operations jfs_file_operations;
extern const struct inode_operations jfs_symlink_inode_operations;
+extern const struct inode_operations jfs_fast_symlink_inode_operations;
extern const struct dentry_operations jfs_ci_dentry_operations;
#endif /* _H_JFS_INODE */
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 335c4de6552d..c51af2a14516 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -70,6 +70,7 @@
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "jfs_incore.h"
#include "jfs_filsys.h"
#include "jfs_metapage.h"
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 07b6c5dfb4b6..48b44bd8267b 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -21,6 +21,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/bio.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/buffer_head.h>
#include <linux/mempool.h>
diff --git a/fs/jfs/jfs_unicode.h b/fs/jfs/jfs_unicode.h
index 3fbb3a225590..8f0f02cb6ca6 100644
--- a/fs/jfs/jfs_unicode.h
+++ b/fs/jfs/jfs_unicode.h
@@ -19,6 +19,7 @@
#ifndef _H_JFS_UNICODE
#define _H_JFS_UNICODE
+#include <linux/slab.h>
#include <asm/byteorder.h>
#include "jfs_types.h"
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 4a3e9f39c21d..a9cf8e8675be 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -956,7 +956,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
*/
if (ssize <= IDATASIZE) {
- ip->i_op = &jfs_symlink_inode_operations;
+ ip->i_op = &jfs_fast_symlink_inode_operations;
i_fastsymlink = JFS_IP(ip)->i_inline;
memcpy(i_fastsymlink, name, ssize);
@@ -978,7 +978,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
else {
jfs_info("jfs_symlink: allocate extent ip:0x%p", ip);
- ip->i_op = &page_symlink_inode_operations;
+ ip->i_op = &jfs_symlink_inode_operations;
ip->i_mapping->a_ops = &jfs_aops;
/*
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index 7f24a0bb08ca..1aba0039f1c9 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -81,6 +81,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
struct inode *iplist[1];
struct jfs_superblock *j_sb, *j_sb2;
uint old_agsize;
+ int agsizechanged = 0;
struct buffer_head *bh, *bh2;
/* If the volume hasn't grown, get out now */
@@ -333,6 +334,9 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
*/
if ((rc = dbExtendFS(ipbmap, XAddress, nblocks)))
goto error_out;
+
+ agsizechanged |= (bmp->db_agsize != old_agsize);
+
/*
* the map now has extended to cover additional nblocks:
* dn_mapsize = oldMapsize + nblocks;
@@ -432,7 +436,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
* will correctly identify the new ag);
*/
/* if new AG size the same as old AG size, done! */
- if (bmp->db_agsize != old_agsize) {
+ if (agsizechanged) {
if ((rc = diExtendFS(ipimap, ipbmap)))
goto error_out;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 266699deb1c6..157382fa6256 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -30,6 +30,7 @@
#include <linux/buffer_head.h>
#include <linux/exportfs.h>
#include <linux/crc32.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/seq_file.h>
#include <linux/smp_lock.h>
diff --git a/fs/jfs/symlink.c b/fs/jfs/symlink.c
index 4af1a05aad0a..205b946d8e0d 100644
--- a/fs/jfs/symlink.c
+++ b/fs/jfs/symlink.c
@@ -29,9 +29,21 @@ static void *jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
return NULL;
}
-const struct inode_operations jfs_symlink_inode_operations = {
+const struct inode_operations jfs_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = jfs_follow_link,
+ .setattr = jfs_setattr,
+ .setxattr = jfs_setxattr,
+ .getxattr = jfs_getxattr,
+ .listxattr = jfs_listxattr,
+ .removexattr = jfs_removexattr,
+};
+
+const struct inode_operations jfs_symlink_inode_operations = {
+ .readlink = generic_readlink,
+ .follow_link = page_follow_link_light,
+ .put_link = page_put_link,
+ .setattr = jfs_setattr,
.setxattr = jfs_setxattr,
.getxattr = jfs_getxattr,
.listxattr = jfs_listxattr,
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 1f594ab21895..fa96bbb26343 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/xattr.h>
#include <linux/posix_acl_xattr.h>
+#include <linux/slab.h>
#include <linux/quotaops.h>
#include <linux/security.h>
#include "jfs_incore.h"
diff --git a/fs/libfs.c b/fs/libfs.c
index 9e50bcf55857..ea9a6cc9b35c 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -5,6 +5,7 @@
#include <linux/module.h>
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/vfs.h>
#include <linux/mutex.h>
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index fc9032dc8862..64fd427c993c 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -8,6 +8,7 @@
#include <linux/module.h>
#include <linux/types.h>
+#include <linux/slab.h>
#include <linux/time.h>
#include <linux/nfs_fs.h>
#include <linux/sunrpc/clnt.h>
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index c81249fef11f..7932c399fab4 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -8,6 +8,7 @@
#include <linux/module.h>
#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/fs.h>
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index fefa4df3f005..e3015464fbab 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -10,6 +10,7 @@
#include <linux/utsname.h>
#include <linux/kernel.h>
#include <linux/ktime.h>
+#include <linux/slab.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/xprtsock.h>
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 7d150517ddf0..f1bacf1a0391 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -21,7 +21,6 @@
#include <linux/errno.h>
#include <linux/in.h>
#include <linux/uio.h>
-#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/mutex.h>
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index a7966eed3c17..031c6569a134 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -9,7 +9,6 @@
#include <linux/types.h>
#include <linux/time.h>
-#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/lockd/lockd.h>
#include <linux/lockd/share.h>
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index d1001790fa9a..84055d31bfc5 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -21,6 +21,7 @@
*/
#include <linux/types.h>
+#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/sched.h>
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 56c9519d900a..0f2ab741ae7c 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -9,7 +9,6 @@
#include <linux/types.h>
#include <linux/time.h>
-#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/lockd/lockd.h>
#include <linux/lockd/share.h>
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index ad478da7ca63..d0ef94cfb3da 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -10,6 +10,7 @@
#include <linux/string.h>
#include <linux/time.h>
#include <linux/in.h>
+#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/clnt.h>
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index 9718c22f186d..243c00071f76 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -9,6 +9,7 @@
#include <linux/bio.h>
#include <linux/blkdev.h>
#include <linux/buffer_head.h>
+#include <linux/gfp.h>
#define PAGE_OFS(ofs) ((ofs) & (PAGE_SIZE-1))
@@ -80,6 +81,7 @@ static void writeseg_end_io(struct bio *bio, int err)
prefetchw(&bvec->bv_page->flags);
end_page_writeback(page);
+ page_cache_release(page);
} while (bvec >= bio->bi_io_vec);
bio_put(bio);
if (atomic_dec_and_test(&super->s_pending_writes))
@@ -97,8 +99,10 @@ static int __bdev_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
unsigned int max_pages = queue_max_hw_sectors(q) >> (PAGE_SHIFT - 9);
int i;
+ if (max_pages > BIO_MAX_PAGES)
+ max_pages = BIO_MAX_PAGES;
bio = bio_alloc(GFP_NOFS, max_pages);
- BUG_ON(!bio); /* FIXME: handle this */
+ BUG_ON(!bio);
for (i = 0; i < nr_pages; i++) {
if (i >= max_pages) {
@@ -191,8 +195,10 @@ static int do_erase(struct super_block *sb, u64 ofs, pgoff_t index,
unsigned int max_pages = queue_max_hw_sectors(q) >> (PAGE_SHIFT - 9);
int i;
+ if (max_pages > BIO_MAX_PAGES)
+ max_pages = BIO_MAX_PAGES;
bio = bio_alloc(GFP_NOFS, max_pages);
- BUG_ON(!bio); /* FIXME: handle this */
+ BUG_ON(!bio);
for (i = 0; i < nr_pages; i++) {
if (i >= max_pages) {
diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index 56a8bfbb0120..2396a85c0f55 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -6,7 +6,7 @@
* Copyright (c) 2005-2008 Joern Engel <joern@logfs.org>
*/
#include "logfs.h"
-
+#include <linux/slab.h>
/*
* Atomic dir operations
@@ -303,12 +303,12 @@ static int __logfs_readdir(struct file *file, void *buf, filldir_t filldir)
(filler_t *)logfs_readpage, NULL);
if (IS_ERR(page))
return PTR_ERR(page);
- dd = kmap_atomic(page, KM_USER0);
+ dd = kmap(page);
BUG_ON(dd->namelen == 0);
full = filldir(buf, (char *)dd->name, be16_to_cpu(dd->namelen),
pos, be64_to_cpu(dd->ino), dd->type);
- kunmap_atomic(dd, KM_USER0);
+ kunmap(page);
page_cache_release(page);
if (full)
break;
diff --git a/fs/logfs/gc.c b/fs/logfs/gc.c
index 92949f95a901..76c242fbe1b0 100644
--- a/fs/logfs/gc.c
+++ b/fs/logfs/gc.c
@@ -7,6 +7,7 @@
*/
#include "logfs.h"
#include <linux/sched.h>
+#include <linux/slab.h>
/*
* Wear leveling needs to kick in when the difference between low erase
@@ -458,6 +459,14 @@ static void __logfs_gc_pass(struct super_block *sb, int target)
struct logfs_block *block;
int round, progress, last_progress = 0;
+ /*
+ * Doing too many changes to the segfile at once would result
+ * in a large number of aliases. Write the journal before
+ * things get out of hand.
+ */
+ if (super->s_shadow_tree.no_shadowed_segments >= MAX_OBJ_ALIASES)
+ logfs_write_anchor(sb);
+
if (no_free_segments(sb) >= target &&
super->s_no_object_aliases < MAX_OBJ_ALIASES)
return;
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index 33ec1aeaeec4..14ed27274da2 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -6,6 +6,7 @@
* Copyright (c) 2005-2008 Joern Engel <joern@logfs.org>
*/
#include "logfs.h"
+#include <linux/slab.h>
#include <linux/writeback.h>
#include <linux/backing-dev.h>
diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c
index 6ad30a4c9052..fb0a613f885b 100644
--- a/fs/logfs/journal.c
+++ b/fs/logfs/journal.c
@@ -6,6 +6,7 @@
* Copyright (c) 2005-2008 Joern Engel <joern@logfs.org>
*/
#include "logfs.h"
+#include <linux/slab.h>
static void logfs_calc_free(struct super_block *sb)
{
@@ -388,7 +389,10 @@ static void journal_get_erase_count(struct logfs_area *area)
static int journal_erase_segment(struct logfs_area *area)
{
struct super_block *sb = area->a_sb;
- struct logfs_segment_header sh;
+ union {
+ struct logfs_segment_header sh;
+ unsigned char c[ALIGN(sizeof(struct logfs_segment_header), 16)];
+ } u;
u64 ofs;
int err;
@@ -396,20 +400,21 @@ static int journal_erase_segment(struct logfs_area *area)
if (err)
return err;
- sh.pad = 0;
- sh.type = SEG_JOURNAL;
- sh.level = 0;
- sh.segno = cpu_to_be32(area->a_segno);
- sh.ec = cpu_to_be32(area->a_erase_count);
- sh.gec = cpu_to_be64(logfs_super(sb)->s_gec);
- sh.crc = logfs_crc32(&sh, sizeof(sh), 4);
+ memset(&u, 0, sizeof(u));
+ u.sh.pad = 0;
+ u.sh.type = SEG_JOURNAL;
+ u.sh.level = 0;
+ u.sh.segno = cpu_to_be32(area->a_segno);
+ u.sh.ec = cpu_to_be32(area->a_erase_count);
+ u.sh.gec = cpu_to_be64(logfs_super(sb)->s_gec);
+ u.sh.crc = logfs_crc32(&u.sh, sizeof(u.sh), 4);
/* This causes a bug in segment.c. Not yet. */
//logfs_set_segment_erased(sb, area->a_segno, area->a_erase_count, 0);
ofs = dev_ofs(sb, area->a_segno, 0);
- area->a_used_bytes = ALIGN(sizeof(sh), 16);
- logfs_buf_write(area, ofs, &sh, sizeof(sh));
+ area->a_used_bytes = sizeof(u);
+ logfs_buf_write(area, ofs, &u, sizeof(u));
return 0;
}
@@ -493,6 +498,8 @@ static void account_shadows(struct super_block *sb)
btree_grim_visitor64(&tree->new, (unsigned long)sb, account_shadow);
btree_grim_visitor64(&tree->old, (unsigned long)sb, account_shadow);
+ btree_grim_visitor32(&tree->segment_map, 0, NULL);
+ tree->no_shadowed_segments = 0;
if (li->li_block) {
/*
@@ -606,9 +613,9 @@ static size_t __logfs_write_je(struct super_block *sb, void *buf, u16 type,
if (len == 0)
return logfs_write_header(super, header, 0, type);
+ BUG_ON(len > sb->s_blocksize);
compr_len = logfs_compress(buf, data, len, sb->s_blocksize);
if (compr_len < 0 || type == JE_ANCHOR) {
- BUG_ON(len > sb->s_blocksize);
memcpy(data, buf, len);
compr_len = len;
compr = COMPR_NONE;
@@ -660,6 +667,7 @@ static int logfs_write_je_buf(struct super_block *sb, void *buf, u16 type,
if (ofs < 0)
return ofs;
logfs_buf_write(area, ofs, super->s_compressed_je, len);
+ BUG_ON(super->s_no_je >= MAX_JOURNAL_ENTRIES);
super->s_je_array[super->s_no_je++] = cpu_to_be64(ofs);
return 0;
}
@@ -800,6 +808,7 @@ void do_logfs_journal_wl_pass(struct super_block *sb)
{
struct logfs_super *super = logfs_super(sb);
struct logfs_area *area = super->s_journal_area;
+ struct btree_head32 *head = &super->s_reserved_segments;
u32 segno, ec;
int i, err;
@@ -807,6 +816,7 @@ void do_logfs_journal_wl_pass(struct super_block *sb)
/* Drop old segments */
journal_for_each(i)
if (super->s_journal_seg[i]) {
+ btree_remove32(head, super->s_journal_seg[i]);
logfs_set_segment_unreserved(sb,
super->s_journal_seg[i],
super->s_journal_ec[i]);
@@ -819,8 +829,13 @@ void do_logfs_journal_wl_pass(struct super_block *sb)
super->s_journal_seg[i] = segno;
super->s_journal_ec[i] = ec;
logfs_set_segment_reserved(sb, segno);
+ err = btree_insert32(head, segno, (void *)1, GFP_KERNEL);
+ BUG_ON(err); /* mempool should prevent this */
+ err = logfs_erase_segment(sb, segno, 1);
+ BUG_ON(err); /* FIXME: remount-ro would be nicer */
}
/* Manually move journal_area */
+ freeseg(sb, area->a_segno);
area->a_segno = super->s_journal_seg[0];
area->a_is_open = 0;
area->a_used_bytes = 0;
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h
index 129779431373..0a3df1a0c936 100644
--- a/fs/logfs/logfs.h
+++ b/fs/logfs/logfs.h
@@ -257,10 +257,14 @@ struct logfs_shadow {
* struct shadow_tree
* @new: shadows where old_ofs==0, indexed by new_ofs
* @old: shadows where old_ofs!=0, indexed by old_ofs
+ * @segment_map: bitfield of segments containing shadows
+ * @no_shadowed_segment: number of segments containing shadows
*/
struct shadow_tree {
struct btree_head64 new;
struct btree_head64 old;
+ struct btree_head32 segment_map;
+ int no_shadowed_segments;
};
struct object_alias_item {
@@ -305,13 +309,14 @@ typedef int write_alias_t(struct super_block *sb, u64 ino, u64 bix,
level_t level, int child_no, __be64 val);
struct logfs_block_ops {
void (*write_block)(struct logfs_block *block);
- gc_level_t (*block_level)(struct logfs_block *block);
void (*free_block)(struct super_block *sb, struct logfs_block*block);
int (*write_alias)(struct super_block *sb,
struct logfs_block *block,
write_alias_t *write_one_alias);
};
+#define MAX_JOURNAL_ENTRIES 256
+
struct logfs_super {
struct mtd_info *s_mtd; /* underlying device */
struct block_device *s_bdev; /* underlying device */
@@ -378,7 +383,7 @@ struct logfs_super {
u32 s_journal_ec[LOGFS_JOURNAL_SEGS]; /* journal erasecounts */
u64 s_last_version;
struct logfs_area *s_journal_area; /* open journal segment */
- __be64 s_je_array[64];
+ __be64 s_je_array[MAX_JOURNAL_ENTRIES];
int s_no_je;
int s_sum_index; /* for the 12 summaries */
@@ -587,6 +592,7 @@ void move_page_to_btree(struct page *page);
int logfs_init_mapping(struct super_block *sb);
void logfs_sync_area(struct logfs_area *area);
void logfs_sync_segments(struct super_block *sb);
+void freeseg(struct super_block *sb, u32 segno);
/* area handling */
int logfs_init_areas(struct super_block *sb);
@@ -721,4 +727,10 @@ static inline struct logfs_area *get_area(struct super_block *sb,
return logfs_super(sb)->s_area[(__force u8)gc_level];
}
+static inline void logfs_mempool_destroy(mempool_t *pool)
+{
+ if (pool)
+ mempool_destroy(pool);
+}
+
#endif
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 7a23b3e7c0a7..3159db6958e5 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -18,6 +18,7 @@
*/
#include "logfs.h"
#include <linux/sched.h>
+#include <linux/slab.h>
static u64 adjust_bix(u64 bix, level_t level)
{
@@ -429,25 +430,6 @@ static void inode_write_block(struct logfs_block *block)
}
}
-static gc_level_t inode_block_level(struct logfs_block *block)
-{
- BUG_ON(block->inode->i_ino == LOGFS_INO_MASTER);
- return GC_LEVEL(LOGFS_MAX_LEVELS);
-}
-
-static gc_level_t indirect_block_level(struct logfs_block *block)
-{
- struct page *page;
- struct inode *inode;
- u64 bix;
- level_t level;
-
- page = block->page;
- inode = page->mapping->host;
- logfs_unpack_index(page->index, &bix, &level);
- return expand_level(inode->i_ino, level);
-}
-
/*
* This silences a false, yet annoying gcc warning. I hate it when my editor
* jumps into bitops.h each time I recompile this file.
@@ -586,14 +568,12 @@ static void indirect_free_block(struct super_block *sb,
static struct logfs_block_ops inode_block_ops = {
.write_block = inode_write_block,
- .block_level = inode_block_level,
.free_block = inode_free_block,
.write_alias = inode_write_alias,
};
struct logfs_block_ops indirect_block_ops = {
.write_block = indirect_write_block,
- .block_level = indirect_block_level,
.free_block = indirect_free_block,
.write_alias = indirect_write_alias,
};
@@ -1240,6 +1220,18 @@ static void free_shadow(struct inode *inode, struct logfs_shadow *shadow)
mempool_free(shadow, super->s_shadow_pool);
}
+static void mark_segment(struct shadow_tree *tree, u32 segno)
+{
+ int err;
+
+ if (!btree_lookup32(&tree->segment_map, segno)) {
+ err = btree_insert32(&tree->segment_map, segno, (void *)1,
+ GFP_NOFS);
+ BUG_ON(err);
+ tree->no_shadowed_segments++;
+ }
+}
+
/**
* fill_shadow_tree - Propagate shadow tree changes due to a write
* @inode: Inode owning the page
@@ -1287,6 +1279,8 @@ static void fill_shadow_tree(struct inode *inode, struct page *page,
super->s_dirty_used_bytes += shadow->new_len;
super->s_dirty_free_bytes += shadow->old_len;
+ mark_segment(tree, shadow->old_ofs >> super->s_segshift);
+ mark_segment(tree, shadow->new_ofs >> super->s_segshift);
}
}
@@ -1594,7 +1588,6 @@ int logfs_delete(struct inode *inode, pgoff_t index,
return ret;
}
-/* Rewrite cannot mark the inode dirty but has to write it immediatly. */
int logfs_rewrite_block(struct inode *inode, u64 bix, u64 ofs,
gc_level_t gc_level, long flags)
{
@@ -1611,6 +1604,18 @@ int logfs_rewrite_block(struct inode *inode, u64 bix, u64 ofs,
if (level != 0)
alloc_indirect_block(inode, page, 0);
err = logfs_write_buf(inode, page, flags);
+ if (!err && shrink_level(gc_level) == 0) {
+ /* Rewrite cannot mark the inode dirty but has to
+ * write it immediatly.
+ * Q: Can't we just create an alias for the inode
+ * instead? And if not, why not?
+ */
+ if (inode->i_ino == LOGFS_INO_MASTER)
+ logfs_write_anchor(inode->i_sb);
+ else {
+ err = __logfs_write_inode(inode, flags);
+ }
+ }
}
logfs_put_write_page(page);
return err;
@@ -1833,19 +1838,37 @@ static int __logfs_truncate(struct inode *inode, u64 size)
return logfs_truncate_direct(inode, size);
}
-int logfs_truncate(struct inode *inode, u64 size)
+/*
+ * Truncate, by changing the segment file, can consume a fair amount
+ * of resources. So back off from time to time and do some GC.
+ * 8 or 2048 blocks should be well within safety limits even if
+ * every single block resided in a different segment.
+ */
+#define TRUNCATE_STEP (8 * 1024 * 1024)
+int logfs_truncate(struct inode *inode, u64 target)
{
struct super_block *sb = inode->i_sb;
- int err;
+ u64 size = i_size_read(inode);
+ int err = 0;
- logfs_get_wblocks(sb, NULL, 1);
- err = __logfs_truncate(inode, size);
- if (!err)
- err = __logfs_write_inode(inode, 0);
- logfs_put_wblocks(sb, NULL, 1);
+ size = ALIGN(size, TRUNCATE_STEP);
+ while (size > target) {
+ if (size > TRUNCATE_STEP)
+ size -= TRUNCATE_STEP;
+ else
+ size = 0;
+ if (size < target)
+ size = target;
+
+ logfs_get_wblocks(sb, NULL, 1);
+ err = __logfs_truncate(inode, target);
+ if (!err)
+ err = __logfs_write_inode(inode, 0);
+ logfs_put_wblocks(sb, NULL, 1);
+ }
if (!err)
- err = vmtruncate(inode, size);
+ err = vmtruncate(inode, target);
/* I don't trust error recovery yet. */
WARN_ON(err);
@@ -2239,8 +2262,6 @@ void logfs_cleanup_rw(struct super_block *sb)
struct logfs_super *super = logfs_super(sb);
destroy_meta_inode(super->s_segfile_inode);
- if (super->s_block_pool)
- mempool_destroy(super->s_block_pool);
- if (super->s_shadow_pool)
- mempool_destroy(super->s_shadow_pool);
+ logfs_mempool_destroy(super->s_block_pool);
+ logfs_mempool_destroy(super->s_shadow_pool);
}
diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index 1a14f9910d55..f77ce2b470ba 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -10,6 +10,7 @@
* three kinds of objects: inodes, dentries and blocks, both data and indirect.
*/
#include "logfs.h"
+#include <linux/slab.h>
static int logfs_mark_segment_bad(struct super_block *sb, u32 segno)
{
@@ -93,50 +94,58 @@ void __logfs_buf_write(struct logfs_area *area, u64 ofs, void *buf, size_t len,
} while (len);
}
-/*
- * bdev_writeseg will write full pages. Memset the tail to prevent data leaks.
- */
-static void pad_wbuf(struct logfs_area *area, int final)
+static void pad_partial_page(struct logfs_area *area)
{
struct super_block *sb = area->a_sb;
- struct logfs_super *super = logfs_super(sb);
struct page *page;
u64 ofs = dev_ofs(sb, area->a_segno, area->a_used_bytes);
pgoff_t index = ofs >> PAGE_SHIFT;
long offset = ofs & (PAGE_SIZE-1);
u32 len = PAGE_SIZE - offset;
- if (len == PAGE_SIZE) {
- /* The math in this function can surely use some love */
- len = 0;
- }
- if (len) {
- BUG_ON(area->a_used_bytes >= super->s_segsize);
-
- page = get_mapping_page(area->a_sb, index, 0);
+ if (len % PAGE_SIZE) {
+ page = get_mapping_page(sb, index, 0);
BUG_ON(!page); /* FIXME: reserve a pool */
memset(page_address(page) + offset, 0xff, len);
SetPagePrivate(page);
page_cache_release(page);
}
+}
- if (!final)
- return;
+static void pad_full_pages(struct logfs_area *area)
+{
+ struct super_block *sb = area->a_sb;
+ struct logfs_super *super = logfs_super(sb);
+ u64 ofs = dev_ofs(sb, area->a_segno, area->a_used_bytes);
+ u32 len = super->s_segsize - area->a_used_bytes;
+ pgoff_t index = PAGE_CACHE_ALIGN(ofs) >> PAGE_CACHE_SHIFT;
+ pgoff_t no_indizes = len >> PAGE_CACHE_SHIFT;
+ struct page *page;
- area->a_used_bytes += len;
- for ( ; area->a_used_bytes < super->s_segsize;
- area->a_used_bytes += PAGE_SIZE) {
- /* Memset another page */
- index++;
- page = get_mapping_page(area->a_sb, index, 0);
+ while (no_indizes) {
+ page = get_mapping_page(sb, index, 0);
BUG_ON(!page); /* FIXME: reserve a pool */
- memset(page_address(page), 0xff, PAGE_SIZE);
+ SetPageUptodate(page);
+ memset(page_address(page), 0xff, PAGE_CACHE_SIZE);
SetPagePrivate(page);
page_cache_release(page);
+ index++;
+ no_indizes--;
}
}
/*
+ * bdev_writeseg will write full pages. Memset the tail to prevent data leaks.
+ * Also make sure we allocate (and memset) all pages for final writeout.
+ */
+static void pad_wbuf(struct logfs_area *area, int final)
+{
+ pad_partial_page(area);
+ if (final)
+ pad_full_pages(area);
+}
+
+/*
* We have to be careful with the alias tree. Since lookup is done by bix,
* it needs to be normalized, so 14, 15, 16, etc. all match when dealing with
* indirect blocks. So always use it through accessor functions.
@@ -174,14 +183,8 @@ static int btree_write_alias(struct super_block *sb, struct logfs_block *block,
return 0;
}
-static gc_level_t btree_block_level(struct logfs_block *block)
-{
- return expand_level(block->ino, block->level);
-}
-
static struct logfs_block_ops btree_block_ops = {
.write_block = btree_write_block,
- .block_level = btree_block_level,
.free_block = __free_block,
.write_alias = btree_write_alias,
};
@@ -683,7 +686,7 @@ int logfs_segment_delete(struct inode *inode, struct logfs_shadow *shadow)
return 0;
}
-static void freeseg(struct super_block *sb, u32 segno)
+void freeseg(struct super_block *sb, u32 segno)
{
struct logfs_super *super = logfs_super(sb);
struct address_space *mapping = super->s_mapping_inode->i_mapping;
@@ -910,7 +913,7 @@ err:
for (i--; i >= 0; i--)
free_area(super->s_area[i]);
free_area(super->s_journal_area);
- mempool_destroy(super->s_alias_pool);
+ logfs_mempool_destroy(super->s_alias_pool);
return -ENOMEM;
}
diff --git a/fs/logfs/super.c b/fs/logfs/super.c
index c66beab78dee..5866ee6e1327 100644
--- a/fs/logfs/super.c
+++ b/fs/logfs/super.c
@@ -11,6 +11,8 @@
*/
#include "logfs.h"
#include <linux/bio.h>
+#include <linux/slab.h>
+#include <linux/blkdev.h>
#include <linux/mtd/mtd.h>
#include <linux/statfs.h>
#include <linux/buffer_head.h>
@@ -136,6 +138,10 @@ static int logfs_sb_set(struct super_block *sb, void *_super)
sb->s_fs_info = super;
sb->s_mtd = super->s_mtd;
sb->s_bdev = super->s_bdev;
+ if (sb->s_bdev)
+ sb->s_bdi = &bdev_get_queue(sb->s_bdev)->backing_dev_info;
+ if (sb->s_mtd)
+ sb->s_bdi = sb->s_mtd->backing_dev_info;
return 0;
}
@@ -277,7 +283,7 @@ static int logfs_recover_sb(struct super_block *sb)
}
if (valid0 && valid1 && ds_cmp(ds0, ds1)) {
printk(KERN_INFO"Superblocks don't match - fixing.\n");
- return write_one_sb(sb, super->s_devops->find_last_sb);
+ return logfs_write_sb(sb);
}
/* If neither is valid now, something's wrong. Didn't we properly
* check them before?!? */
@@ -289,6 +295,10 @@ static int logfs_make_writeable(struct super_block *sb)
{
int err;
+ err = logfs_open_segfile(sb);
+ if (err)
+ return err;
+
/* Repair any broken superblock copies */
err = logfs_recover_sb(sb);
if (err)
@@ -299,10 +309,6 @@ static int logfs_make_writeable(struct super_block *sb)
if (err)
return err;
- err = logfs_open_segfile(sb);
- if (err)
- return err;
-
/* Do one GC pass before any data gets dirtied */
logfs_gc_pass(sb);
@@ -328,7 +334,7 @@ static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt)
sb->s_root = d_alloc_root(rootdir);
if (!sb->s_root)
- goto fail;
+ goto fail2;
super->s_erase_page = alloc_pages(GFP_KERNEL, 0);
if (!super->s_erase_page)
@@ -451,6 +457,8 @@ static int logfs_read_sb(struct super_block *sb, int read_only)
btree_init_mempool64(&super->s_shadow_tree.new, super->s_btree_pool);
btree_init_mempool64(&super->s_shadow_tree.old, super->s_btree_pool);
+ btree_init_mempool32(&super->s_shadow_tree.segment_map,
+ super->s_btree_pool);
ret = logfs_init_mapping(sb);
if (ret)
@@ -515,8 +523,8 @@ static void logfs_kill_sb(struct super_block *sb)
if (super->s_erase_page)
__free_page(super->s_erase_page);
super->s_devops->put_device(sb);
- mempool_destroy(super->s_btree_pool);
- mempool_destroy(super->s_alias_pool);
+ logfs_mempool_destroy(super->s_btree_pool);
+ logfs_mempool_destroy(super->s_alias_pool);
kfree(super);
log_super("LogFS: Finished unmounting\n");
}
@@ -572,8 +580,7 @@ int logfs_get_sb_device(struct file_system_type *type, int flags,
return 0;
err1:
- up_write(&sb->s_umount);
- deactivate_super(sb);
+ deactivate_locked_super(sb);
return err;
err0:
kfree(super);
diff --git a/fs/minix/itree_v1.c b/fs/minix/itree_v1.c
index 82d6554b02fe..282e15ad8cd8 100644
--- a/fs/minix/itree_v1.c
+++ b/fs/minix/itree_v1.c
@@ -1,4 +1,5 @@
#include <linux/buffer_head.h>
+#include <linux/slab.h>
#include "minix.h"
enum {DEPTH = 3, DIRECT = 7}; /* Only double indirect */
diff --git a/fs/mpage.c b/fs/mpage.c
index 598d54e200eb..fd56ca2ea556 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/kdev_t.h>
+#include <linux/gfp.h>
#include <linux/bio.h>
#include <linux/fs.h>
#include <linux/buffer_head.h>
diff --git a/fs/namei.c b/fs/namei.c
index 1c0fca6e899e..a7dce91a7e42 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1610,8 +1610,7 @@ exit:
static struct file *do_last(struct nameidata *nd, struct path *path,
int open_flag, int acc_mode,
- int mode, const char *pathname,
- int *want_dir)
+ int mode, const char *pathname)
{
struct dentry *dir = nd->path.dentry;
struct file *filp;
@@ -1642,7 +1641,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
if (nd->last.name[nd->last.len]) {
if (open_flag & O_CREAT)
goto exit;
- *want_dir = 1;
+ nd->flags |= LOOKUP_DIRECTORY;
}
/* just plain open? */
@@ -1656,8 +1655,10 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
if (path->dentry->d_inode->i_op->follow_link)
return NULL;
error = -ENOTDIR;
- if (*want_dir && !path->dentry->d_inode->i_op->lookup)
- goto exit_dput;
+ if (nd->flags & LOOKUP_DIRECTORY) {
+ if (!path->dentry->d_inode->i_op->lookup)
+ goto exit_dput;
+ }
path_to_nameidata(path, nd);
audit_inode(pathname, nd->path.dentry);
goto ok;
@@ -1766,7 +1767,6 @@ struct file *do_filp_open(int dfd, const char *pathname,
int count = 0;
int flag = open_to_namei_flags(open_flag);
int force_reval = 0;
- int want_dir = open_flag & O_DIRECTORY;
if (!(open_flag & O_CREAT))
mode = 0;
@@ -1828,7 +1828,9 @@ reval:
if (open_flag & O_EXCL)
nd.flags |= LOOKUP_EXCL;
}
- filp = do_last(&nd, &path, open_flag, acc_mode, mode, pathname, &want_dir);
+ if (open_flag & O_DIRECTORY)
+ nd.flags |= LOOKUP_DIRECTORY;
+ filp = do_last(&nd, &path, open_flag, acc_mode, mode, pathname);
while (unlikely(!filp)) { /* trailing symlink */
struct path holder;
struct inode *inode = path.dentry->d_inode;
@@ -1866,7 +1868,7 @@ reval:
}
holder = path;
nd.flags &= ~LOOKUP_PARENT;
- filp = do_last(&nd, &path, open_flag, acc_mode, mode, pathname, &want_dir);
+ filp = do_last(&nd, &path, open_flag, acc_mode, mode, pathname);
if (inode->i_op->put_link)
inode->i_op->put_link(holder.dentry, &nd, cookie);
path_put(&holder);
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index b8b5b30d53f0..7edfcd4d5e52 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -15,7 +15,6 @@
#include <linux/errno.h>
#include <linux/stat.h>
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <asm/uaccess.h>
diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c
index 6a7d901f1936..1daabb90e0a5 100644
--- a/fs/ncpfs/file.c
+++ b/fs/ncpfs/file.c
@@ -15,7 +15,6 @@
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index cf98da1be23e..fa3385154023 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -526,10 +526,15 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
sb->s_blocksize_bits = 10;
sb->s_magic = NCP_SUPER_MAGIC;
sb->s_op = &ncp_sops;
+ sb->s_bdi = &server->bdi;
server = NCP_SBP(sb);
memset(server, 0, sizeof(*server));
+ error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY);
+ if (error)
+ goto out_bdi;
+
server->ncp_filp = ncp_filp;
server->ncp_sock = sock;
@@ -719,6 +724,8 @@ out_fput2:
if (server->info_filp)
fput(server->info_filp);
out_fput:
+ bdi_destroy(&server->bdi);
+out_bdi:
/* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
*
* The previously used put_filp(ncp_filp); was bogous, since
@@ -756,6 +763,7 @@ static void ncp_put_super(struct super_block *sb)
kill_pid(server->m.wdog_pid, SIGTERM, 1);
put_pid(server->m.wdog_pid);
+ bdi_destroy(&server->bdi);
kfree(server->priv.data);
kfree(server->auth.object_name);
vfree(server->rxbuf);
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index ec8f45f12e05..60a5e2864ea8 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -15,6 +15,7 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/mount.h>
+#include <linux/slab.h>
#include <linux/highuid.h>
#include <linux/smp_lock.h>
#include <linux/vmalloc.h>
diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
index 15458decdb8a..56f5b3a0e1ee 100644
--- a/fs/ncpfs/mmap.c
+++ b/fs/ncpfs/mmap.c
@@ -9,12 +9,12 @@
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/kernel.h>
+#include <linux/gfp.h>
#include <linux/mm.h>
#include <linux/shm.h>
#include <linux/errno.h>
#include <linux/mman.h>
#include <linux/string.h>
-#include <linux/slab.h>
#include <linux/fcntl.h>
#include <linux/ncp_fs.h>
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index e37df8d5fe70..c7ff6c700a6e 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -21,6 +21,7 @@
#include <linux/mm.h>
#include <linux/netdevice.h>
#include <linux/signal.h>
+#include <linux/slab.h>
#include <net/scm.h>
#include <net/sock.h>
#include <linux/ipx.h>
diff --git a/fs/ncpfs/symlink.c b/fs/ncpfs/symlink.c
index e3d26c1bd105..c634fd17b337 100644
--- a/fs/ncpfs/symlink.c
+++ b/fs/ncpfs/symlink.c
@@ -27,6 +27,7 @@
#include <linux/fs.h>
#include <linux/ncp_fs.h>
#include <linux/time.h>
+#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/stat.h>
#include "ncplib_kernel.h"
diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c
index b4ffd0146ea6..84690319e625 100644
--- a/fs/nfs/cache_lib.c
+++ b/fs/nfs/cache_lib.c
@@ -10,6 +10,7 @@
#include <linux/moduleparam.h>
#include <linux/mount.h>
#include <linux/namei.h>
+#include <linux/slab.h>
#include <linux/sunrpc/cache.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 84761b5bb8e2..a08770a7e857 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -7,6 +7,7 @@
*/
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
+#include <linux/slab.h>
#include "nfs4_fs.h"
#include "callback.h"
#include "delegation.h"
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index a2b8b4df125d..05af212f0edf 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -9,6 +9,7 @@
#include <linux/sunrpc/svc.h>
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
+#include <linux/slab.h>
#include "nfs4_fs.h"
#include "callback.h"
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 2274f1737336..acc9c4943b84 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -35,6 +35,7 @@
#include <linux/vfs.h>
#include <linux/inet.h>
#include <linux/in6.h>
+#include <linux/slab.h>
#include <net/ipv6.h>
#include <linux/nfs_xdr.h>
#include <linux/sunrpc/bc_xprt.h>
@@ -965,6 +966,8 @@ out_error:
static void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_server *source)
{
target->flags = source->flags;
+ target->rsize = source->rsize;
+ target->wsize = source->wsize;
target->acregmin = source->acregmin;
target->acregmax = source->acregmax;
target->acdirmin = source->acdirmin;
@@ -1293,7 +1296,8 @@ static int nfs4_init_server(struct nfs_server *server,
/* Initialise the client representation from the mount data */
server->flags = data->flags;
- server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR;
+ server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR|
+ NFS_CAP_POSIX_LOCK;
server->options = data->options;
/* Get a client record */
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 2563bebc4c67..ea61d26e7871 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -10,6 +10,7 @@
#include <linux/kthread.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h>
@@ -23,6 +24,8 @@
static void nfs_do_free_delegation(struct nfs_delegation *delegation)
{
+ if (delegation->cred)
+ put_rpccred(delegation->cred);
kfree(delegation);
}
@@ -35,13 +38,7 @@ static void nfs_free_delegation_callback(struct rcu_head *head)
static void nfs_free_delegation(struct nfs_delegation *delegation)
{
- struct rpc_cred *cred;
-
- cred = rcu_dereference(delegation->cred);
- rcu_assign_pointer(delegation->cred, NULL);
call_rcu(&delegation->rcu, nfs_free_delegation_callback);
- if (cred)
- put_rpccred(cred);
}
void nfs_mark_delegation_referenced(struct nfs_delegation *delegation)
@@ -128,21 +125,35 @@ again:
*/
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res)
{
- struct nfs_delegation *delegation = NFS_I(inode)->delegation;
- struct rpc_cred *oldcred;
+ struct nfs_delegation *delegation;
+ struct rpc_cred *oldcred = NULL;
- if (delegation == NULL)
- return;
- memcpy(delegation->stateid.data, res->delegation.data,
- sizeof(delegation->stateid.data));
- delegation->type = res->delegation_type;
- delegation->maxsize = res->maxsize;
- oldcred = delegation->cred;
- delegation->cred = get_rpccred(cred);
- clear_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags);
- NFS_I(inode)->delegation_state = delegation->type;
- smp_wmb();
- put_rpccred(oldcred);
+ rcu_read_lock();
+ delegation = rcu_dereference(NFS_I(inode)->delegation);
+ if (delegation != NULL) {
+ spin_lock(&delegation->lock);
+ if (delegation->inode != NULL) {
+ memcpy(delegation->stateid.data, res->delegation.data,
+ sizeof(delegation->stateid.data));
+ delegation->type = res->delegation_type;
+ delegation->maxsize = res->maxsize;
+ oldcred = delegation->cred;
+ delegation->cred = get_rpccred(cred);
+ clear_bit(NFS_DELEGATION_NEED_RECLAIM,
+ &delegation->flags);
+ NFS_I(inode)->delegation_state = delegation->type;
+ spin_unlock(&delegation->lock);
+ put_rpccred(oldcred);
+ rcu_read_unlock();
+ } else {
+ /* We appear to have raced with a delegation return. */
+ spin_unlock(&delegation->lock);
+ rcu_read_unlock();
+ nfs_inode_set_delegation(inode, cred, res);
+ }
+ } else {
+ rcu_read_unlock();
+ }
}
static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation *delegation, int issync)
@@ -165,9 +176,13 @@ static struct inode *nfs_delegation_grab_inode(struct nfs_delegation *delegation
return inode;
}
-static struct nfs_delegation *nfs_detach_delegation_locked(struct nfs_inode *nfsi, const nfs4_stateid *stateid)
+static struct nfs_delegation *nfs_detach_delegation_locked(struct nfs_inode *nfsi,
+ const nfs4_stateid *stateid,
+ struct nfs_client *clp)
{
- struct nfs_delegation *delegation = rcu_dereference(nfsi->delegation);
+ struct nfs_delegation *delegation =
+ rcu_dereference_protected(nfsi->delegation,
+ lockdep_is_held(&clp->cl_lock));
if (delegation == NULL)
goto nomatch;
@@ -194,7 +209,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
{
struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_inode *nfsi = NFS_I(inode);
- struct nfs_delegation *delegation;
+ struct nfs_delegation *delegation, *old_delegation;
struct nfs_delegation *freeme = NULL;
int status = 0;
@@ -212,10 +227,12 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
spin_lock_init(&delegation->lock);
spin_lock(&clp->cl_lock);
- if (rcu_dereference(nfsi->delegation) != NULL) {
- if (memcmp(&delegation->stateid, &nfsi->delegation->stateid,
- sizeof(delegation->stateid)) == 0 &&
- delegation->type == nfsi->delegation->type) {
+ old_delegation = rcu_dereference_protected(nfsi->delegation,
+ lockdep_is_held(&clp->cl_lock));
+ if (old_delegation != NULL) {
+ if (memcmp(&delegation->stateid, &old_delegation->stateid,
+ sizeof(old_delegation->stateid)) == 0 &&
+ delegation->type == old_delegation->type) {
goto out;
}
/*
@@ -225,12 +242,12 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
dfprintk(FILE, "%s: server %s handed out "
"a duplicate delegation!\n",
__func__, clp->cl_hostname);
- if (delegation->type <= nfsi->delegation->type) {
+ if (delegation->type <= old_delegation->type) {
freeme = delegation;
delegation = NULL;
goto out;
}
- freeme = nfs_detach_delegation_locked(nfsi, NULL);
+ freeme = nfs_detach_delegation_locked(nfsi, NULL, clp);
}
list_add_rcu(&delegation->super_list, &clp->cl_delegations);
nfsi->delegation_state = delegation->type;
@@ -300,7 +317,7 @@ restart:
if (inode == NULL)
continue;
spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL);
+ delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL, clp);
spin_unlock(&clp->cl_lock);
rcu_read_unlock();
if (delegation != NULL) {
@@ -329,9 +346,9 @@ void nfs_inode_return_delegation_noreclaim(struct inode *inode)
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_delegation *delegation;
- if (rcu_dereference(nfsi->delegation) != NULL) {
+ if (rcu_access_pointer(nfsi->delegation) != NULL) {
spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(nfsi, NULL);
+ delegation = nfs_detach_delegation_locked(nfsi, NULL, clp);
spin_unlock(&clp->cl_lock);
if (delegation != NULL)
nfs_do_return_delegation(inode, delegation, 0);
@@ -345,9 +362,9 @@ int nfs_inode_return_delegation(struct inode *inode)
struct nfs_delegation *delegation;
int err = 0;
- if (rcu_dereference(nfsi->delegation) != NULL) {
+ if (rcu_access_pointer(nfsi->delegation) != NULL) {
spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(nfsi, NULL);
+ delegation = nfs_detach_delegation_locked(nfsi, NULL, clp);
spin_unlock(&clp->cl_lock);
if (delegation != NULL) {
nfs_msync_inode(inode);
@@ -525,7 +542,7 @@ restart:
if (inode == NULL)
continue;
spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL);
+ delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL, clp);
spin_unlock(&clp->cl_lock);
rcu_read_unlock();
if (delegation != NULL)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index c6f2750648f4..a7bb5c694aa3 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -837,6 +837,8 @@ out_zap_parent:
/* If we have submounts, don't unhash ! */
if (have_submounts(dentry))
goto out_valid;
+ if (dentry->d_flags & DCACHE_DISCONNECTED)
+ goto out_valid;
shrink_dcache_parent(dentry);
}
d_drop(dentry);
@@ -1025,12 +1027,12 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
res = NULL;
goto out;
/* This turned out not to be a regular file */
+ case -EISDIR:
case -ENOTDIR:
goto no_open;
case -ELOOP:
if (!(nd->intent.open.flags & O_NOFOLLOW))
goto no_open;
- /* case -EISDIR: */
/* case -EINVAL: */
default:
goto out;
@@ -1050,7 +1052,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
struct inode *dir;
int openflags, ret = 0;
- if (!is_atomic_open(nd))
+ if (!is_atomic_open(nd) || d_mountpoint(dentry))
goto no_open;
parent = dget_parent(dentry);
dir = parent->d_inode;
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 0d289823e856..ad4cd31d6050 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -44,6 +44,7 @@
#include <linux/file.h>
#include <linux/pagemap.h>
#include <linux/kref.h>
+#include <linux/slab.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index 3f0cd4dfddaf..76fd235d0024 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -9,6 +9,7 @@
#include <linux/hash.h>
#include <linux/string.h>
#include <linux/kmod.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/socket.h>
#include <linux/seq_file.h>
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index ae8d02294e46..8d965bddb87e 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -24,9 +24,9 @@
#include <linux/nfs_fs.h>
#include <linux/nfs_mount.h>
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/aio.h>
+#include <linux/gfp.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -491,7 +491,8 @@ static int nfs_release_page(struct page *page, gfp_t gfp)
{
dfprintk(PAGECACHE, "NFS: release_page(%p)\n", page);
- if (gfp & __GFP_WAIT)
+ /* Only do I/O if gfp is a superset of GFP_KERNEL */
+ if ((gfp & GFP_KERNEL) == GFP_KERNEL)
nfs_wb_page(page->mapping->host, page);
/* If PagePrivate() is set, then the page is not freeable */
if (PagePrivate(page))
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 237874f1af23..a6b16ed93229 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -17,6 +17,7 @@
#include <linux/nfs_fs_sb.h>
#include <linux/in6.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "internal.h"
#include "iostat.h"
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index e358df75a6ad..50a56edca0b5 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -36,6 +36,7 @@
#include <linux/vfs.h>
#include <linux/inet.h>
#include <linux/nfs_xdr.h>
+#include <linux/slab.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -622,10 +623,10 @@ struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_c
list_for_each_entry(pos, &nfsi->open_files, list) {
if (cred != NULL && pos->cred != cred)
continue;
- if ((pos->mode & mode) == mode) {
- ctx = get_nfs_open_context(pos);
- break;
- }
+ if ((pos->mode & (FMODE_READ|FMODE_WRITE)) != mode)
+ continue;
+ ctx = get_nfs_open_context(pos);
+ break;
}
spin_unlock(&inode->i_lock);
return ctx;
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 40c766782891..7888cf36022d 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -8,6 +8,7 @@
*/
#include <linux/dcache.h>
+#include <linux/gfp.h>
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/nfs_fs.h>
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index 7bc2da8efd4a..81cf14257916 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -12,7 +12,6 @@
#include <linux/param.h>
#include <linux/time.h>
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/in.h>
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index bac60515a4b3..d150ae0c5ecd 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -1,4 +1,5 @@
#include <linux/fs.h>
+#include <linux/gfp.h>
#include <linux/nfs.h>
#include <linux/nfs3.h>
#include <linux/nfs_fs.h>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 24992f0a29f2..e701002694e5 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -10,6 +10,7 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/slab.h>
#include <linux/nfs.h>
#include <linux/nfs3.h>
#include <linux/nfs_fs.h>
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 5fe5492fbd29..56a86f6ac8b5 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -9,7 +9,6 @@
#include <linux/param.h>
#include <linux/time.h>
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/in.h>
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index fa3408f20112..f071d12c613b 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -11,6 +11,7 @@
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/nfs_fs.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include <linux/sunrpc/clnt.h>
#include <linux/vfs.h>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f9254fb0c9d0..071fcedd517c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -39,6 +39,7 @@
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <linux/sunrpc/clnt.h>
#include <linux/nfs.h>
#include <linux/nfs4.h>
@@ -1522,6 +1523,8 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
nfs_post_op_update_inode(dir, o_res->dir_attr);
} else
nfs_refresh_inode(dir, o_res->dir_attr);
+ if ((o_res->rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) == 0)
+ server->caps &= ~NFS_CAP_POSIX_LOCK;
if(o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
status = _nfs4_proc_open_confirm(data);
if (status != 0)
@@ -1663,7 +1666,7 @@ static int _nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, in
status = PTR_ERR(state);
if (IS_ERR(state))
goto err_opendata_put;
- if ((opendata->o_res.rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) != 0)
+ if (server->caps & NFS_CAP_POSIX_LOCK)
set_bit(NFS_STATE_POSIX_LOCKS, &state->flags);
nfs4_opendata_put(opendata);
nfs4_put_state_owner(sp);
@@ -2067,8 +2070,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
case -EDQUOT:
case -ENOSPC:
case -EROFS:
- lookup_instantiate_filp(nd, (struct dentry *)state, NULL);
- return 1;
+ return PTR_ERR(state);
default:
goto out_drop;
}
@@ -5216,9 +5218,12 @@ static int nfs41_proc_reclaim_complete(struct nfs_client *clp)
msg.rpc_resp = &calldata->res;
task_setup_data.callback_data = calldata;
task = rpc_run_task(&task_setup_data);
- if (IS_ERR(task))
+ if (IS_ERR(task)) {
status = PTR_ERR(task);
+ goto out;
+ }
rpc_put_task(task);
+ return 0;
out:
dprintk("<-- %s status=%d\n", __func__, status);
return status;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 4d338be492cb..38f3b582e7c2 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -38,7 +38,6 @@
#include <linux/param.h>
#include <linux/time.h>
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/in.h>
@@ -5552,6 +5551,8 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nf
if (status != 0)
goto out;
status = decode_delegreturn(&xdr);
+ if (status != 0)
+ goto out;
decode_getfattr(&xdr, res->fattr, res->server,
!RPC_IS_ASYNC(rqstp->rq_task));
out:
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index c752d944fe9e..0288be80444f 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -29,7 +29,6 @@
#include <linux/types.h>
#include <linux/param.h>
-#include <linux/slab.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/errno.h>
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 6baf9a393466..b4148fc00f9f 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -48,6 +48,7 @@
#include <linux/vfs.h>
#include <linux/inet.h>
#include <linux/in6.h>
+#include <linux/slab.h>
#include <net/ipv6.h>
#include <linux/netdevice.h>
#include <linux/nfs_xdr.h>
@@ -2186,6 +2187,7 @@ static int nfs_get_sb(struct file_system_type *fs_type,
if (data->version == 4) {
error = nfs4_try_mount(flags, dev_name, data, mnt);
kfree(data->client_address);
+ kfree(data->nfs_server.export_path);
goto out;
}
#endif /* CONFIG_NFS_V4 */
@@ -2656,7 +2658,7 @@ static void nfs_fix_devname(const struct path *path, struct vfsmount *mnt)
devname = nfs_path(path->mnt->mnt_devname,
path->mnt->mnt_root, path->dentry,
page, PAGE_SIZE);
- if (devname == NULL)
+ if (IS_ERR(devname))
goto out_freepage;
tmp = kstrdup(devname, GFP_KERNEL);
if (tmp == NULL)
diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 2ea9e5c27e55..05c9e02f4153 100644
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -19,7 +19,6 @@
#include <linux/pagemap.h>
#include <linux/stat.h>
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/string.h>
#include <linux/namei.h>
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 53ff70e23993..3aea3ca98ab7 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -201,6 +201,7 @@ static int nfs_set_page_writeback(struct page *page)
struct inode *inode = page->mapping->host;
struct nfs_server *nfss = NFS_SERVER(inode);
+ page_cache_get(page);
if (atomic_long_inc_return(&nfss->writeback) >
NFS_CONGESTION_ON_THRESH) {
set_bdi_congested(&nfss->backing_dev_info,
@@ -216,6 +217,7 @@ static void nfs_end_page_writeback(struct page *page)
struct nfs_server *nfss = NFS_SERVER(inode);
end_page_writeback(page);
+ page_cache_release(page);
if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
}
@@ -421,6 +423,7 @@ static void
nfs_mark_request_dirty(struct nfs_page *req)
{
__set_page_dirty_nobuffers(req->wb_page);
+ __mark_inode_dirty(req->wb_page->mapping->host, I_DIRTY_DATASYNC);
}
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
@@ -660,9 +663,11 @@ static int nfs_writepage_setup(struct nfs_open_context *ctx, struct page *page,
req = nfs_setup_write_request(ctx, page, offset, count);
if (IS_ERR(req))
return PTR_ERR(req);
+ nfs_mark_request_dirty(req);
/* Update file length */
nfs_grow_file(page, offset, count);
nfs_mark_uptodate(page, req->wb_pgbase, req->wb_bytes);
+ nfs_mark_request_dirty(req);
nfs_clear_page_tag_locked(req);
return 0;
}
@@ -739,8 +744,6 @@ int nfs_updatepage(struct file *file, struct page *page,
status = nfs_writepage_setup(ctx, page, offset, count);
if (status < 0)
nfs_set_pageerror(page);
- else
- __set_page_dirty_nobuffers(page);
dprintk("NFS: nfs_updatepage returns %d (isize %lld)\n",
status, (long long)i_size_read(inode));
@@ -749,13 +752,12 @@ int nfs_updatepage(struct file *file, struct page *page,
static void nfs_writepage_release(struct nfs_page *req)
{
+ struct page *page = req->wb_page;
- if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req)) {
- nfs_end_page_writeback(req->wb_page);
+ if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req))
nfs_inode_remove_request(req);
- } else
- nfs_end_page_writeback(req->wb_page);
nfs_clear_page_tag_locked(req);
+ nfs_end_page_writeback(page);
}
static int flush_task_priority(int how)
@@ -779,7 +781,6 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
int how)
{
struct inode *inode = req->wb_context->path.dentry->d_inode;
- int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
int priority = flush_task_priority(how);
struct rpc_task *task;
struct rpc_message msg = {
@@ -794,9 +795,10 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
.callback_ops = call_ops,
.callback_data = data,
.workqueue = nfsiod_workqueue,
- .flags = flags,
+ .flags = RPC_TASK_ASYNC,
.priority = priority,
};
+ int ret = 0;
/* Set up the RPC argument and reply structs
* NB: take care not to mess about with data->commit et al. */
@@ -835,10 +837,18 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
(unsigned long long)data->args.offset);
task = rpc_run_task(&task_setup_data);
- if (IS_ERR(task))
- return PTR_ERR(task);
+ if (IS_ERR(task)) {
+ ret = PTR_ERR(task);
+ goto out;
+ }
+ if (how & FLUSH_SYNC) {
+ ret = rpc_wait_for_completion_task(task);
+ if (ret == 0)
+ ret = task->tk_status;
+ }
rpc_put_task(task);
- return 0;
+out:
+ return ret;
}
/* If a nfs_flush_* function fails, it should remove reqs from @head and
@@ -847,9 +857,11 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
*/
static void nfs_redirty_request(struct nfs_page *req)
{
+ struct page *page = req->wb_page;
+
nfs_mark_request_dirty(req);
- nfs_end_page_writeback(req->wb_page);
nfs_clear_page_tag_locked(req);
+ nfs_end_page_writeback(page);
}
/*
@@ -1084,16 +1096,15 @@ static void nfs_writeback_release_full(void *calldata)
if (nfs_write_need_commit(data)) {
memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
nfs_mark_request_commit(req);
- nfs_end_page_writeback(page);
dprintk(" marked for commit\n");
goto next;
}
dprintk(" OK\n");
remove_request:
- nfs_end_page_writeback(page);
nfs_inode_remove_request(req);
next:
nfs_clear_page_tag_locked(req);
+ nfs_end_page_writeback(page);
}
nfs_writedata_release(calldata);
}
@@ -1190,6 +1201,25 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
+static int nfs_commit_set_lock(struct nfs_inode *nfsi, int may_wait)
+{
+ if (!test_and_set_bit(NFS_INO_COMMIT, &nfsi->flags))
+ return 1;
+ if (may_wait && !out_of_line_wait_on_bit_lock(&nfsi->flags,
+ NFS_INO_COMMIT, nfs_wait_bit_killable,
+ TASK_KILLABLE))
+ return 1;
+ return 0;
+}
+
+static void nfs_commit_clear_lock(struct nfs_inode *nfsi)
+{
+ clear_bit(NFS_INO_COMMIT, &nfsi->flags);
+ smp_mb__after_clear_bit();
+ wake_up_bit(&nfsi->flags, NFS_INO_COMMIT);
+}
+
+
static void nfs_commitdata_release(void *data)
{
struct nfs_write_data *wdata = data;
@@ -1207,7 +1237,6 @@ static int nfs_commit_rpcsetup(struct list_head *head,
{
struct nfs_page *first = nfs_list_entry(head->next);
struct inode *inode = first->wb_context->path.dentry->d_inode;
- int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
int priority = flush_task_priority(how);
struct rpc_task *task;
struct rpc_message msg = {
@@ -1222,7 +1251,7 @@ static int nfs_commit_rpcsetup(struct list_head *head,
.callback_ops = &nfs_commit_ops,
.callback_data = data,
.workqueue = nfsiod_workqueue,
- .flags = flags,
+ .flags = RPC_TASK_ASYNC,
.priority = priority,
};
@@ -1282,6 +1311,7 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how)
BDI_RECLAIMABLE);
nfs_clear_page_tag_locked(req);
}
+ nfs_commit_clear_lock(NFS_I(inode));
return -ENOMEM;
}
@@ -1337,6 +1367,7 @@ static void nfs_commit_release(void *calldata)
next:
nfs_clear_page_tag_locked(req);
}
+ nfs_commit_clear_lock(NFS_I(data->inode));
nfs_commitdata_release(calldata);
}
@@ -1351,8 +1382,11 @@ static const struct rpc_call_ops nfs_commit_ops = {
static int nfs_commit_inode(struct inode *inode, int how)
{
LIST_HEAD(head);
- int res;
+ int may_wait = how & FLUSH_SYNC;
+ int res = 0;
+ if (!nfs_commit_set_lock(NFS_I(inode), may_wait))
+ goto out;
spin_lock(&inode->i_lock);
res = nfs_scan_commit(inode, &head, 0, 0);
spin_unlock(&inode->i_lock);
@@ -1360,7 +1394,13 @@ static int nfs_commit_inode(struct inode *inode, int how)
int error = nfs_commit_list(inode, &head, how);
if (error < 0)
return error;
- }
+ if (may_wait)
+ wait_on_bit(&NFS_I(inode)->flags, NFS_INO_COMMIT,
+ nfs_wait_bit_killable,
+ TASK_KILLABLE);
+ } else
+ nfs_commit_clear_lock(NFS_I(inode));
+out:
return res;
}
@@ -1432,6 +1472,7 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page)
BUG_ON(!PageLocked(page));
for (;;) {
+ wait_on_page_writeback(page);
req = nfs_page_find_request(page);
if (req == NULL)
break;
@@ -1466,30 +1507,18 @@ int nfs_wb_page(struct inode *inode, struct page *page)
.range_start = range_start,
.range_end = range_end,
};
- struct nfs_page *req;
- int need_commit;
int ret;
while(PagePrivate(page)) {
+ wait_on_page_writeback(page);
if (clear_page_dirty_for_io(page)) {
ret = nfs_writepage_locked(page, &wbc);
if (ret < 0)
goto out_error;
}
- req = nfs_find_and_lock_request(page);
- if (!req)
- break;
- if (IS_ERR(req)) {
- ret = PTR_ERR(req);
+ ret = sync_inode(inode, &wbc);
+ if (ret < 0)
goto out_error;
- }
- need_commit = test_bit(PG_CLEAN, &req->wb_flags);
- nfs_clear_page_tag_locked(req);
- if (need_commit) {
- ret = nfs_commit_inode(inode, FLUSH_SYNC);
- if (ret < 0)
- goto out_error;
- }
}
return 0;
out_error:
diff --git a/fs/nfs_common/nfsacl.c b/fs/nfs_common/nfsacl.c
index 04133aacb1e5..fc1c52571c03 100644
--- a/fs/nfs_common/nfsacl.c
+++ b/fs/nfs_common/nfsacl.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/fs.h>
+#include <linux/gfp.h>
#include <linux/sunrpc/xdr.h>
#include <linux/nfsacl.h>
#include <linux/nfs3.h>
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index a0c4016413f1..872a5ef550c7 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -12,6 +12,7 @@
* Copyright (C) 1995, 1996 Olaf Kirch, <okir@monad.swb.de>
*/
+#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/module.h>
#include <linux/exportfs.h>
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index f20589d2ae27..6aa5590c3679 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -7,6 +7,7 @@
#include "nfsd.h"
/* FIXME: nfsacl.h is a broken header */
#include <linux/nfsacl.h>
+#include <linux/gfp.h>
#include "cache.h"
#include "xdr3.h"
#include "vfs.h"
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index e0c4846bad92..a596e9d987e4 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -7,6 +7,7 @@
#include "nfsd.h"
/* FIXME: nfsacl.h is a broken header */
#include <linux/nfsacl.h>
+#include <linux/gfp.h>
#include "cache.h"
#include "xdr3.h"
#include "vfs.h"
diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index 88150685df34..e48052615159 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -34,6 +34,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <linux/slab.h>
#include <linux/nfs_fs.h>
#include <linux/nfs4_acl.h>
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 4bc22c763de7..7e32bd394e86 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -32,6 +32,7 @@
*/
#include <linux/sunrpc/clnt.h>
+#include <linux/slab.h>
#include "nfsd.h"
#include "state.h"
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 6e2983b27f3c..c78dbf493424 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -36,6 +36,7 @@
#include <linux/nfsd_idmap.h>
#include <linux/seq_file.h>
#include <linux/sched.h>
+#include <linux/slab.h>
/*
* Cache entry
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 37514c469846..2ab9e8501bfe 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -33,6 +33,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/file.h>
+#include <linux/slab.h>
#include "cache.h"
#include "xdr4.h"
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 98fb98e330b4..7a9ae3254a4b 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -32,6 +32,7 @@
*/
#include <linux/file.h>
+#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/crypto.h>
#include <linux/sched.h>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index c97fddbd17db..6a8fedaa4f55 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -34,6 +34,7 @@
#include <linux/file.h>
#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/swap.h>
#include <linux/sunrpc/svcauth_gss.h>
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index c47b4d7bafa7..34ccf815ea8a 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -40,6 +40,7 @@
* at the end of nfs4svc_decode_compoundargs.
*/
+#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/statfs.h>
#include <linux/utsname.h>
@@ -160,10 +161,10 @@ static __be32 *read_buf(struct nfsd4_compoundargs *argp, u32 nbytes)
argp->p = page_address(argp->pagelist[0]);
argp->pagelist++;
if (argp->pagelen < PAGE_SIZE) {
- argp->end = p + (argp->pagelen>>2);
+ argp->end = argp->p + (argp->pagelen>>2);
argp->pagelen = 0;
} else {
- argp->end = p + (PAGE_SIZE>>2);
+ argp->end = argp->p + (PAGE_SIZE>>2);
argp->pagelen -= PAGE_SIZE;
}
memcpy(((char*)p)+avail, argp->p, (nbytes - avail));
@@ -1425,10 +1426,10 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
argp->p = page_address(argp->pagelist[0]);
argp->pagelist++;
if (argp->pagelen < PAGE_SIZE) {
- argp->end = p + (argp->pagelen>>2);
+ argp->end = argp->p + (argp->pagelen>>2);
argp->pagelen = 0;
} else {
- argp->end = p + (PAGE_SIZE>>2);
+ argp->end = argp->p + (PAGE_SIZE>>2);
argp->pagelen -= PAGE_SIZE;
}
}
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index da08560c4818..4666a209678a 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -8,6 +8,8 @@
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
+#include <linux/slab.h>
+
#include "nfsd.h"
#include "cache.h"
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 0f0e77f2012f..e3591073098f 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -4,6 +4,7 @@
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
+#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/ctype.h>
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index a11b0e8678ee..6dd5f1970e01 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -25,6 +25,7 @@
#include <linux/xattr.h>
#include <linux/jhash.h>
#include <linux/ima.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/exportfs.h>
#include <linux/writeback.h>
diff --git a/fs/nilfs2/alloc.c b/fs/nilfs2/alloc.c
index 3f959f1879d8..7cfb87e692da 100644
--- a/fs/nilfs2/alloc.c
+++ b/fs/nilfs2/alloc.c
@@ -26,6 +26,7 @@
#include <linux/buffer_head.h>
#include <linux/fs.h>
#include <linux/bitops.h>
+#include <linux/slab.h>
#include "mdt.h"
#include "alloc.h"
@@ -425,7 +426,7 @@ void nilfs_palloc_abort_alloc_entry(struct inode *inode,
bitmap = bitmap_kaddr + bh_offset(req->pr_bitmap_bh);
if (!nilfs_clear_bit_atomic(nilfs_mdt_bgl_lock(inode, group),
group_offset, bitmap))
- printk(KERN_WARNING "%s: entry numer %llu already freed\n",
+ printk(KERN_WARNING "%s: entry number %llu already freed\n",
__func__, (unsigned long long)req->pr_entry_nr);
nilfs_palloc_group_desc_add_entries(inode, group, desc, 1);
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index 471e269536ae..447ce47a3306 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -27,6 +27,7 @@
#include <linux/buffer_head.h>
#include <linux/mm.h>
#include <linux/backing-dev.h>
+#include <linux/gfp.h>
#include "nilfs.h"
#include "mdt.h"
#include "dat.h"
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index 7cdd98b8d514..76c38e3e19d2 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -1879,7 +1879,7 @@ static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
struct nilfs_btree_path *path,
int level, struct buffer_head *bh)
{
- int maxlevel, ret;
+ int maxlevel = 0, ret;
struct nilfs_btree_node *parent;
struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
__u64 ptr;
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 8880a9e281e7..145f03cd7d3e 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -45,6 +45,7 @@
#include <linux/buffer_head.h>
#include <linux/mpage.h>
#include <linux/hash.h>
+#include <linux/slab.h>
#include <linux/swap.h>
#include "nilfs.h"
#include "page.h"
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 7868cc122ac7..0957b58f909d 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -22,6 +22,7 @@
*/
#include <linux/buffer_head.h>
+#include <linux/gfp.h>
#include <linux/mpage.h>
#include <linux/writeback.h>
#include <linux/uio.h>
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 313d0a21da48..f90a33d9a5b0 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -23,6 +23,7 @@
#include <linux/fs.h>
#include <linux/wait.h>
#include <linux/smp_lock.h> /* lock_kernel(), unlock_kernel() */
+#include <linux/slab.h>
#include <linux/capability.h> /* capable() */
#include <linux/uaccess.h> /* copy_from_user(), copy_to_user() */
#include <linux/vmalloc.h>
@@ -648,7 +649,7 @@ static int nilfs_ioctl_get_info(struct inode *inode, struct file *filp,
long nilfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct inode *inode = filp->f_dentry->d_inode;
- void __user *argp = (void * __user *)arg;
+ void __user *argp = (void __user *)arg;
switch (cmd) {
case NILFS_IOCTL_CHANGE_CPMODE:
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 06713ffcc7f2..024be8c35bb6 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -26,6 +26,7 @@
#include <linux/writeback.h>
#include <linux/backing-dev.h>
#include <linux/swap.h>
+#include <linux/slab.h>
#include "nilfs.h"
#include "segment.h"
#include "page.h"
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index fc246dba112a..8de3e1e48130 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -29,6 +29,7 @@
#include <linux/list.h>
#include <linux/highmem.h>
#include <linux/pagevec.h>
+#include <linux/gfp.h>
#include "nilfs.h"
#include "page.h"
#include "mdt.h"
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index 017bedc761a0..ba43146f3c30 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -23,6 +23,7 @@
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
#include <linux/swap.h>
+#include <linux/slab.h>
#include <linux/crc32.h>
#include "nilfs.h"
#include "segment.h"
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 636eaafd6ea2..17851f77f739 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -25,6 +25,7 @@
#include <linux/writeback.h>
#include <linux/crc32.h>
#include <linux/backing-dev.h>
+#include <linux/slab.h>
#include "page.h"
#include "segbuf.h"
@@ -323,14 +324,14 @@ int nilfs_write_logs(struct list_head *logs, struct the_nilfs *nilfs)
int nilfs_wait_on_logs(struct list_head *logs)
{
struct nilfs_segment_buffer *segbuf;
- int err;
+ int err, ret = 0;
list_for_each_entry(segbuf, logs, sb_list) {
err = nilfs_segbuf_wait(segbuf);
- if (err)
- return err;
+ if (err && !ret)
+ ret = err;
}
- return 0;
+ return ret;
}
/*
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 69576a95e13f..6a7dbd8451db 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -32,6 +32,7 @@
#include <linux/kthread.h>
#include <linux/crc32.h>
#include <linux/pagevec.h>
+#include <linux/slab.h>
#include "nilfs.h"
#include "btnode.h"
#include "page.h"
@@ -1510,6 +1511,12 @@ static int nilfs_segctor_collect(struct nilfs_sc_info *sci,
if (mode != SC_LSEG_SR || sci->sc_stage.scnt < NILFS_ST_CPFILE)
break;
+ nilfs_clear_logs(&sci->sc_segbufs);
+
+ err = nilfs_segctor_extend_segments(sci, nilfs, nadd);
+ if (unlikely(err))
+ return err;
+
if (sci->sc_stage.flags & NILFS_CF_SUFREED) {
err = nilfs_sufile_cancel_freev(nilfs->ns_sufile,
sci->sc_freesegs,
@@ -1517,12 +1524,6 @@ static int nilfs_segctor_collect(struct nilfs_sc_info *sci,
NULL);
WARN_ON(err); /* do not happen */
}
- nilfs_clear_logs(&sci->sc_segbufs);
-
- err = nilfs_segctor_extend_segments(sci, nilfs, nadd);
- if (unlikely(err))
- return err;
-
nadd = min_t(int, nadd << 1, SC_MAX_SEGDELTA);
sci->sc_stage = prev_stage;
}
@@ -1897,8 +1898,7 @@ static void nilfs_segctor_abort_construction(struct nilfs_sc_info *sci,
list_splice_tail_init(&sci->sc_write_logs, &logs);
ret = nilfs_wait_on_logs(&logs);
- if (ret)
- nilfs_abort_logs(&logs, NULL, sci->sc_super_root, ret);
+ nilfs_abort_logs(&logs, NULL, sci->sc_super_root, ret ? : err);
list_splice_tail_init(&sci->sc_segbufs, &logs);
nilfs_cancel_segusage(&logs, nilfs->ns_sufile);
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 0cdbc5e7655a..48145f505a6a 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -749,6 +749,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent,
sb->s_export_op = &nilfs_export_ops;
sb->s_root = NULL;
sb->s_time_gran = 1;
+ sb->s_bdi = nilfs->ns_bdi;
err = load_nilfs(nilfs, sbi);
if (err)
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index e9795f1724d7..1ab974533697 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -29,6 +29,7 @@
#include <linux/fs.h>
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
+#include <linux/slab.h>
#include "sb.h"
/* the_nilfs struct */
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 037e878e03fc..fcc2f064af83 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -18,6 +18,7 @@
#include <linux/dcache.h>
#include <linux/fs.h>
+#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/srcu.h>
diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
index 3165d85aada2..0399bcbe09c8 100644
--- a/fs/notify/inode_mark.c
+++ b/fs/notify/inode_mark.c
@@ -87,7 +87,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
-#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/writeback.h> /* for inode_lock */
diff --git a/fs/notify/inotify/Kconfig b/fs/notify/inotify/Kconfig
index 3e56dbffe729..b3a159b21cfd 100644
--- a/fs/notify/inotify/Kconfig
+++ b/fs/notify/inotify/Kconfig
@@ -15,6 +15,7 @@ config INOTIFY
config INOTIFY_USER
bool "Inotify support for userspace"
+ select ANON_INODES
select FSNOTIFY
default y
---help---
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index cfce53cb65d7..c3c2c7ac9020 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -23,6 +23,7 @@
#include <linux/errno.h>
#include <linux/fs.h>
+#include <linux/gfp.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/swap.h>
diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
index 50d3b0c258e3..f5094ee224c1 100644
--- a/fs/ntfs/attrib.c
+++ b/fs/ntfs/attrib.c
@@ -22,6 +22,7 @@
#include <linux/buffer_head.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/swap.h>
#include <linux/writeback.h>
diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index 08f7530e9341..6551c7cbad92 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -25,6 +25,7 @@
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
#include <linux/vmalloc.h>
+#include <linux/slab.h>
#include "attrib.h"
#include "inode.h"
diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
index 9173e82a45d1..fe44d3feee4a 100644
--- a/fs/ntfs/dir.c
+++ b/fs/ntfs/dir.c
@@ -21,6 +21,7 @@
*/
#include <linux/buffer_head.h>
+#include <linux/slab.h>
#include "dir.h"
#include "aops.h"
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index b681c71d7069..8804f093ba75 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -20,6 +20,7 @@
*/
#include <linux/buffer_head.h>
+#include <linux/gfp.h>
#include <linux/pagemap.h>
#include <linux/pagevec.h>
#include <linux/sched.h>
diff --git a/fs/ntfs/index.c b/fs/ntfs/index.c
index 2194eff49743..096c135691ae 100644
--- a/fs/ntfs/index.c
+++ b/fs/ntfs/index.c
@@ -19,6 +19,8 @@
* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/slab.h>
+
#include "aops.h"
#include "collate.h"
#include "debug.h"
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 1caa0ef0b2bb..b572b6727181 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -21,6 +21,7 @@
*/
#include <linux/buffer_head.h>
+#include <linux/slab.h>
#include <linux/swap.h>
#include "attrib.h"
diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c
index 2ca00153b6ec..358273e59ade 100644
--- a/fs/ntfs/namei.c
+++ b/fs/ntfs/namei.c
@@ -23,6 +23,7 @@
#include <linux/dcache.h>
#include <linux/exportfs.h>
#include <linux/security.h>
+#include <linux/slab.h>
#include "attrib.h"
#include "debug.h"
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index 0501974bedd0..e13fc9e8fcdc 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/string.h>
#define MLOG_MASK_PREFIX ML_INODE
@@ -30,6 +31,8 @@
#include "alloc.h"
#include "dlmglue.h"
#include "file.h"
+#include "inode.h"
+#include "journal.h"
#include "ocfs2_fs.h"
#include "xattr.h"
@@ -166,6 +169,60 @@ static struct posix_acl *ocfs2_get_acl(struct inode *inode, int type)
}
/*
+ * Helper function to set i_mode in memory and disk. Some call paths
+ * will not have di_bh or a journal handle to pass, in which case it
+ * will create it's own.
+ */
+static int ocfs2_acl_set_mode(struct inode *inode, struct buffer_head *di_bh,
+ handle_t *handle, umode_t new_mode)
+{
+ int ret, commit_handle = 0;
+ struct ocfs2_dinode *di;
+
+ if (di_bh == NULL) {
+ ret = ocfs2_read_inode_block(inode, &di_bh);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ } else
+ get_bh(di_bh);
+
+ if (handle == NULL) {
+ handle = ocfs2_start_trans(OCFS2_SB(inode->i_sb),
+ OCFS2_INODE_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ ret = PTR_ERR(handle);
+ mlog_errno(ret);
+ goto out_brelse;
+ }
+
+ commit_handle = 1;
+ }
+
+ di = (struct ocfs2_dinode *)di_bh->b_data;
+ ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out_commit;
+ }
+
+ inode->i_mode = new_mode;
+ di->i_mode = cpu_to_le16(inode->i_mode);
+
+ ocfs2_journal_dirty(handle, di_bh);
+
+out_commit:
+ if (commit_handle)
+ ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
+out_brelse:
+ brelse(di_bh);
+out:
+ return ret;
+}
+
+/*
* Set the access or default ACL of an inode.
*/
static int ocfs2_set_acl(handle_t *handle,
@@ -193,9 +250,14 @@ static int ocfs2_set_acl(handle_t *handle,
if (ret < 0)
return ret;
else {
- inode->i_mode = mode;
if (ret == 0)
acl = NULL;
+
+ ret = ocfs2_acl_set_mode(inode, di_bh,
+ handle, mode);
+ if (ret)
+ return ret;
+
}
}
break;
@@ -283,6 +345,7 @@ int ocfs2_init_acl(handle_t *handle,
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct posix_acl *acl = NULL;
int ret = 0;
+ mode_t mode;
if (!S_ISLNK(inode->i_mode)) {
if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
@@ -291,12 +354,17 @@ int ocfs2_init_acl(handle_t *handle,
if (IS_ERR(acl))
return PTR_ERR(acl);
}
- if (!acl)
- inode->i_mode &= ~current_umask();
+ if (!acl) {
+ mode = inode->i_mode & ~current_umask();
+ ret = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
+ if (ret) {
+ mlog_errno(ret);
+ goto cleanup;
+ }
+ }
}
if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) {
struct posix_acl *clone;
- mode_t mode;
if (S_ISDIR(inode->i_mode)) {
ret = ocfs2_set_acl(handle, inode, di_bh,
@@ -313,7 +381,7 @@ int ocfs2_init_acl(handle_t *handle,
mode = inode->i_mode;
ret = posix_acl_create_masq(clone, &mode);
if (ret >= 0) {
- inode->i_mode = mode;
+ ret = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
if (ret > 0) {
ret = ocfs2_set_acl(handle, inode,
di_bh, ACL_TYPE_ACCESS,
diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c
index 21c808f752d8..f9d5d3ffc75a 100644
--- a/fs/ocfs2/buffer_head_io.c
+++ b/fs/ocfs2/buffer_head_io.c
@@ -25,7 +25,6 @@
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#include <cluster/masklog.h>
@@ -407,6 +406,7 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
struct buffer_head *bh)
{
int ret = 0;
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
mlog_entry_void();
@@ -426,6 +426,7 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
get_bh(bh); /* for end_buffer_write_sync() */
bh->b_end_io = end_buffer_write_sync;
+ ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &di->i_check);
submit_bh(WRITE, bh);
wait_on_buffer(bh);
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 5c9890006708..41d5f1f92d56 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -34,6 +34,7 @@
#include <linux/crc32.h>
#include <linux/time.h>
#include <linux/debugfs.h>
+#include <linux/slab.h>
#include "heartbeat.h"
#include "tcp.h"
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index c81142e3ef84..ed0c9f367fed 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -19,6 +19,7 @@
* Boston, MA 021110-1307, USA.
*/
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/configfs.h>
diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c
index 639024033fce..cf3e16696216 100644
--- a/fs/ocfs2/cluster/quorum.c
+++ b/fs/ocfs2/cluster/quorum.c
@@ -44,7 +44,6 @@
* and if they're the last, they fire off the decision.
*/
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c
index dccc439fa087..12d5eb78a11a 100644
--- a/fs/ocfs2/dlm/dlmast.c
+++ b/fs/ocfs2/dlm/dlmast.c
@@ -28,7 +28,6 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/init.h>
#include <linux/sysctl.h>
@@ -185,9 +184,8 @@ static void dlm_update_lvb(struct dlm_ctxt *dlm, struct dlm_lock_resource *res,
BUG_ON(!lksb);
/* only updates if this node masters the lockres */
+ spin_lock(&res->spinlock);
if (res->owner == dlm->node_num) {
-
- spin_lock(&res->spinlock);
/* check the lksb flags for the direction */
if (lksb->flags & DLM_LKSB_GET_LVB) {
mlog(0, "getting lvb from lockres for %s node\n",
@@ -202,8 +200,8 @@ static void dlm_update_lvb(struct dlm_ctxt *dlm, struct dlm_lock_resource *res,
* here. In the future we might want to clear it at the time
* the put is actually done.
*/
- spin_unlock(&res->spinlock);
}
+ spin_unlock(&res->spinlock);
/* reset any lvb flags on the lksb */
lksb->flags &= ~(DLM_LKSB_PUT_LVB|DLM_LKSB_GET_LVB);
diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c
index f283bce776b4..90803b47cd8c 100644
--- a/fs/ocfs2/dlm/dlmconvert.c
+++ b/fs/ocfs2/dlm/dlmconvert.c
@@ -28,7 +28,6 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/init.h>
#include <linux/sysctl.h>
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index a659606dcb95..9289b4357d27 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1875,7 +1875,6 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data,
ok:
spin_unlock(&res->spinlock);
}
- spin_unlock(&dlm->spinlock);
// mlog(0, "woo! got an assert_master from node %u!\n",
// assert->node_idx);
@@ -1926,7 +1925,6 @@ ok:
/* master is known, detach if not already detached.
* ensures that only one assert_master call will happen
* on this mle. */
- spin_lock(&dlm->spinlock);
spin_lock(&dlm->master_lock);
rr = atomic_read(&mle->mle_refs.refcount);
@@ -1959,7 +1957,6 @@ ok:
__dlm_put_mle(mle);
}
spin_unlock(&dlm->master_lock);
- spin_unlock(&dlm->spinlock);
} else if (res) {
if (res->owner != assert->node_idx) {
mlog(0, "assert_master from %u, but current "
@@ -1967,6 +1964,7 @@ ok:
res->owner, namelen, name);
}
}
+ spin_unlock(&dlm->spinlock);
done:
ret = 0;
diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 52ec020ea78b..11a6d1fd1d35 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -28,7 +28,6 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/init.h>
#include <linux/sysctl.h>
diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c
index 49e29ecd0201..b47c1b92b82b 100644
--- a/fs/ocfs2/dlm/dlmunlock.c
+++ b/fs/ocfs2/dlm/dlmunlock.c
@@ -28,7 +28,6 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/init.h>
#include <linux/sysctl.h>
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index 1b0de157a08c..b83d6107a1f5 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -112,20 +112,20 @@ MODULE_PARM_DESC(capabilities, DLMFS_CAPABILITIES);
* O_RDONLY -> PRMODE level
* O_WRONLY -> EXMODE level
*
- * O_NONBLOCK -> LKM_NOQUEUE
+ * O_NONBLOCK -> NOQUEUE
*/
static int dlmfs_decode_open_flags(int open_flags,
int *level,
int *flags)
{
if (open_flags & (O_WRONLY|O_RDWR))
- *level = LKM_EXMODE;
+ *level = DLM_LOCK_EX;
else
- *level = LKM_PRMODE;
+ *level = DLM_LOCK_PR;
*flags = 0;
if (open_flags & O_NONBLOCK)
- *flags |= LKM_NOQUEUE;
+ *flags |= DLM_LKF_NOQUEUE;
return 0;
}
@@ -166,7 +166,7 @@ static int dlmfs_file_open(struct inode *inode,
* to be able userspace to be able to distinguish a
* valid lock request from one that simply couldn't be
* granted. */
- if (flags & LKM_NOQUEUE && status == -EAGAIN)
+ if (flags & DLM_LKF_NOQUEUE && status == -EAGAIN)
status = -ETXTBSY;
kfree(fp);
goto bail;
@@ -193,7 +193,7 @@ static int dlmfs_file_release(struct inode *inode,
status = 0;
if (fp) {
level = fp->fp_lock_level;
- if (level != LKM_IVMODE)
+ if (level != DLM_LOCK_IV)
user_dlm_cluster_unlock(&ip->ip_lockres, level);
kfree(fp);
@@ -262,7 +262,7 @@ static ssize_t dlmfs_file_read(struct file *filp,
if ((count + *ppos) > i_size_read(inode))
readlen = i_size_read(inode) - *ppos;
else
- readlen = count - *ppos;
+ readlen = count;
lvb_buf = kmalloc(readlen, GFP_NOFS);
if (!lvb_buf)
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index c562a7581cf9..09e3fdfa6d33 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -24,6 +24,7 @@
#include <linux/fs.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/fiemap.h>
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 17947dc8341e..a5fbd9cea968 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -684,6 +684,7 @@ restarted_transaction:
if (why == RESTART_META) {
mlog(0, "restarting function.\n");
restart_func = 1;
+ status = 0;
} else {
BUG_ON(why != RESTART_TRANS);
@@ -1981,18 +1982,18 @@ relock:
/* communicate with ocfs2_dio_end_io */
ocfs2_iocb_set_rw_locked(iocb, rw_level);
- if (direct_io) {
- ret = generic_segment_checks(iov, &nr_segs, &ocount,
- VERIFY_READ);
- if (ret)
- goto out_dio;
+ ret = generic_segment_checks(iov, &nr_segs, &ocount,
+ VERIFY_READ);
+ if (ret)
+ goto out_dio;
- count = ocount;
- ret = generic_write_checks(file, ppos, &count,
- S_ISBLK(inode->i_mode));
- if (ret)
- goto out_dio;
+ count = ocount;
+ ret = generic_write_checks(file, ppos, &count,
+ S_ISBLK(inode->i_mode));
+ if (ret)
+ goto out_dio;
+ if (direct_io) {
written = generic_file_direct_write(iocb, iov, &nr_segs, *ppos,
ppos, count, ocount);
if (written < 0) {
@@ -2007,7 +2008,10 @@ relock:
goto out_dio;
}
} else {
- written = __generic_file_aio_write(iocb, iov, nr_segs, ppos);
+ current->backing_dev_info = file->f_mapping->backing_dev_info;
+ written = generic_file_buffered_write(iocb, iov, nr_segs, *ppos,
+ ppos, count, 0);
+ current->backing_dev_info = NULL;
}
out_dio:
@@ -2021,9 +2025,9 @@ out_dio:
if (ret < 0)
written = ret;
- if (!ret && (old_size != i_size_read(inode) ||
- old_clusters != OCFS2_I(inode)->ip_clusters ||
- has_refcount)) {
+ if (!ret && ((old_size != i_size_read(inode)) ||
+ (old_clusters != OCFS2_I(inode)->ip_clusters) ||
+ has_refcount)) {
ret = jbd2_journal_force_commit(osb->journal->j_journal);
if (ret < 0)
written = ret;
diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index c6e7213db868..1aa863dd901f 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -26,7 +26,6 @@
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#define MLOG_MASK_PREFIX ML_SUPER
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 278a223aae14..af189887201c 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -25,7 +25,6 @@
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/quotaops.h>
@@ -559,6 +558,7 @@ static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
+ handle = NULL;
mlog_errno(status);
goto out;
}
@@ -640,11 +640,13 @@ static int ocfs2_remove_inode(struct inode *inode,
goto bail_unlock;
}
- status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode,
- orphan_dir_bh);
- if (status < 0) {
- mlog_errno(status);
- goto bail_commit;
+ if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) {
+ status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode,
+ orphan_dir_bh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail_commit;
+ }
}
/* set the inodes dtime */
@@ -723,38 +725,39 @@ static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb,
static int ocfs2_wipe_inode(struct inode *inode,
struct buffer_head *di_bh)
{
- int status, orphaned_slot;
+ int status, orphaned_slot = -1;
struct inode *orphan_dir_inode = NULL;
struct buffer_head *orphan_dir_bh = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct ocfs2_dinode *di;
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data;
- di = (struct ocfs2_dinode *) di_bh->b_data;
- orphaned_slot = le16_to_cpu(di->i_orphaned_slot);
+ if (!(OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) {
+ orphaned_slot = le16_to_cpu(di->i_orphaned_slot);
- status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot);
- if (status)
- return status;
+ status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot);
+ if (status)
+ return status;
- orphan_dir_inode = ocfs2_get_system_file_inode(osb,
- ORPHAN_DIR_SYSTEM_INODE,
- orphaned_slot);
- if (!orphan_dir_inode) {
- status = -EEXIST;
- mlog_errno(status);
- goto bail;
- }
+ orphan_dir_inode = ocfs2_get_system_file_inode(osb,
+ ORPHAN_DIR_SYSTEM_INODE,
+ orphaned_slot);
+ if (!orphan_dir_inode) {
+ status = -EEXIST;
+ mlog_errno(status);
+ goto bail;
+ }
- /* Lock the orphan dir. The lock will be held for the entire
- * delete_inode operation. We do this now to avoid races with
- * recovery completion on other nodes. */
- mutex_lock(&orphan_dir_inode->i_mutex);
- status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
- if (status < 0) {
- mutex_unlock(&orphan_dir_inode->i_mutex);
+ /* Lock the orphan dir. The lock will be held for the entire
+ * delete_inode operation. We do this now to avoid races with
+ * recovery completion on other nodes. */
+ mutex_lock(&orphan_dir_inode->i_mutex);
+ status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
+ if (status < 0) {
+ mutex_unlock(&orphan_dir_inode->i_mutex);
- mlog_errno(status);
- goto bail;
+ mlog_errno(status);
+ goto bail;
+ }
}
/* we do this while holding the orphan dir lock because we
@@ -795,6 +798,9 @@ static int ocfs2_wipe_inode(struct inode *inode,
mlog_errno(status);
bail_unlock_dir:
+ if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)
+ return status;
+
ocfs2_inode_unlock(orphan_dir_inode, 1);
mutex_unlock(&orphan_dir_inode->i_mutex);
brelse(orphan_dir_bh);
@@ -890,7 +896,23 @@ static int ocfs2_query_inode_wipe(struct inode *inode,
/* Do some basic inode verification... */
di = (struct ocfs2_dinode *) di_bh->b_data;
- if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL))) {
+ if (!(di->i_flags & cpu_to_le32(OCFS2_ORPHANED_FL)) &&
+ !(oi->ip_flags & OCFS2_INODE_SKIP_ORPHAN_DIR)) {
+ /*
+ * Inodes in the orphan dir must have ORPHANED_FL. The only
+ * inodes that come back out of the orphan dir are reflink
+ * targets. A reflink target may be moved out of the orphan
+ * dir between the time we scan the directory and the time we
+ * process it. This would lead to HAS_REFCOUNT_FL being set but
+ * ORPHANED_FL not.
+ */
+ if (di->i_dyn_features & cpu_to_le16(OCFS2_HAS_REFCOUNT_FL)) {
+ mlog(0, "Reflinked inode %llu is no longer orphaned. "
+ "it shouldn't be deleted\n",
+ (unsigned long long)oi->ip_blkno);
+ goto bail;
+ }
+
/* for lack of a better error? */
status = -EEXIST;
mlog(ML_ERROR,
diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h
index ba4fe07b293c..0b28e1921a39 100644
--- a/fs/ocfs2/inode.h
+++ b/fs/ocfs2/inode.h
@@ -100,6 +100,8 @@ struct ocfs2_inode_info
#define OCFS2_INODE_MAYBE_ORPHANED 0x00000020
/* Does someone have the file open O_DIRECT */
#define OCFS2_INODE_OPEN_DIRECT 0x00000040
+/* Tell the inode wipe code it's not in orphan dir */
+#define OCFS2_INODE_SKIP_ORPHAN_DIR 0x00000080
static inline struct ocfs2_inode_info *OCFS2_I(struct inode *inode)
{
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index ca992d91f511..c983715d8d8c 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -872,8 +872,10 @@ static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
(unsigned long long)la_start_blk,
(unsigned long long)blkno);
- status = ocfs2_free_clusters(handle, main_bm_inode,
- main_bm_bh, blkno, count);
+ status = ocfs2_release_clusters(handle,
+ main_bm_inode,
+ main_bm_bh, blkno,
+ count);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -984,8 +986,7 @@ static int ocfs2_local_alloc_reserve_for_window(struct ocfs2_super *osb,
}
retry_enospc:
- (*ac)->ac_bits_wanted = osb->local_alloc_bits;
-
+ (*ac)->ac_bits_wanted = osb->local_alloc_default_bits;
status = ocfs2_reserve_cluster_bitmap_bits(osb, *ac);
if (status == -ENOSPC) {
if (ocfs2_recalc_la_window(osb, OCFS2_LA_EVENT_ENOSPC) ==
@@ -1061,6 +1062,7 @@ retry_enospc:
OCFS2_LA_DISABLED)
goto bail;
+ ac->ac_bits_wanted = osb->local_alloc_default_bits;
status = ocfs2_claim_clusters(osb, handle, ac,
osb->local_alloc_bits,
&cluster_off,
diff --git a/fs/ocfs2/locks.c b/fs/ocfs2/locks.c
index 544ac6245175..b5cb3ede9408 100644
--- a/fs/ocfs2/locks.c
+++ b/fs/ocfs2/locks.c
@@ -133,7 +133,7 @@ int ocfs2_lock(struct file *file, int cmd, struct file_lock *fl)
if (!(fl->fl_flags & FL_POSIX))
return -ENOLCK;
- if (__mandatory_lock(inode))
+ if (__mandatory_lock(inode) && fl->fl_type != F_UNLCK)
return -ENOLCK;
return ocfs2_plock(osb->cconn, OCFS2_I(inode)->ip_blkno, file, cmd, fl);
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 39737613424a..7898bd3a99f5 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -25,7 +25,6 @@
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/uio.h>
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index d9cd4e373a53..4cbb18f26c5f 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -84,7 +84,7 @@ static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
static int ocfs2_orphan_add(struct ocfs2_super *osb,
handle_t *handle,
struct inode *inode,
- struct ocfs2_dinode *fe,
+ struct buffer_head *fe_bh,
char *name,
struct ocfs2_dir_lookup_result *lookup,
struct inode *orphan_dir_inode);
@@ -408,23 +408,28 @@ static int ocfs2_mknod(struct inode *dir,
}
}
- status = ocfs2_add_entry(handle, dentry, inode,
- OCFS2_I(inode)->ip_blkno, parent_fe_bh,
- &lookup);
- if (status < 0) {
+ /*
+ * Do this before adding the entry to the directory. We add
+ * also set d_op after success so that ->d_iput() will cleanup
+ * the dentry lock even if ocfs2_add_entry() fails below.
+ */
+ status = ocfs2_dentry_attach_lock(dentry, inode,
+ OCFS2_I(dir)->ip_blkno);
+ if (status) {
mlog_errno(status);
goto leave;
}
+ dentry->d_op = &ocfs2_dentry_ops;
- status = ocfs2_dentry_attach_lock(dentry, inode,
- OCFS2_I(dir)->ip_blkno);
- if (status) {
+ status = ocfs2_add_entry(handle, dentry, inode,
+ OCFS2_I(inode)->ip_blkno, parent_fe_bh,
+ &lookup);
+ if (status < 0) {
mlog_errno(status);
goto leave;
}
insert_inode_hash(inode);
- dentry->d_op = &ocfs2_dentry_ops;
d_instantiate(dentry, inode);
status = 0;
leave:
@@ -445,11 +450,6 @@ leave:
ocfs2_free_dir_lookup_result(&lookup);
- if ((status < 0) && inode) {
- clear_nlink(inode);
- iput(inode);
- }
-
if (inode_ac)
ocfs2_free_alloc_context(inode_ac);
@@ -459,6 +459,17 @@ leave:
if (meta_ac)
ocfs2_free_alloc_context(meta_ac);
+ /*
+ * We should call iput after the i_mutex of the bitmap been
+ * unlocked in ocfs2_free_alloc_context, or the
+ * ocfs2_delete_inode will mutex_lock again.
+ */
+ if ((status < 0) && inode) {
+ OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR;
+ clear_nlink(inode);
+ iput(inode);
+ }
+
mlog_exit(status);
return status;
@@ -879,7 +890,7 @@ static int ocfs2_unlink(struct inode *dir,
fe = (struct ocfs2_dinode *) fe_bh->b_data;
if (inode_is_unlinkable(inode)) {
- status = ocfs2_orphan_add(osb, handle, inode, fe, orphan_name,
+ status = ocfs2_orphan_add(osb, handle, inode, fe_bh, orphan_name,
&orphan_insert, orphan_dir);
if (status < 0) {
mlog_errno(status);
@@ -1300,7 +1311,7 @@ static int ocfs2_rename(struct inode *old_dir,
if (S_ISDIR(new_inode->i_mode) ||
(ocfs2_read_links_count(newfe) == 1)) {
status = ocfs2_orphan_add(osb, handle, new_inode,
- newfe, orphan_name,
+ newfe_bh, orphan_name,
&orphan_insert, orphan_dir);
if (status < 0) {
mlog_errno(status);
@@ -1771,22 +1782,27 @@ static int ocfs2_symlink(struct inode *dir,
}
}
- status = ocfs2_add_entry(handle, dentry, inode,
- le64_to_cpu(fe->i_blkno), parent_fe_bh,
- &lookup);
- if (status < 0) {
+ /*
+ * Do this before adding the entry to the directory. We add
+ * also set d_op after success so that ->d_iput() will cleanup
+ * the dentry lock even if ocfs2_add_entry() fails below.
+ */
+ status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
+ if (status) {
mlog_errno(status);
goto bail;
}
+ dentry->d_op = &ocfs2_dentry_ops;
- status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
- if (status) {
+ status = ocfs2_add_entry(handle, dentry, inode,
+ le64_to_cpu(fe->i_blkno), parent_fe_bh,
+ &lookup);
+ if (status < 0) {
mlog_errno(status);
goto bail;
}
insert_inode_hash(inode);
- dentry->d_op = &ocfs2_dentry_ops;
d_instantiate(dentry, inode);
bail:
if (status < 0 && did_quota)
@@ -1811,6 +1827,7 @@ bail:
if (xattr_ac)
ocfs2_free_alloc_context(xattr_ac);
if ((status < 0) && inode) {
+ OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR;
clear_nlink(inode);
iput(inode);
}
@@ -1911,7 +1928,7 @@ leave:
static int ocfs2_orphan_add(struct ocfs2_super *osb,
handle_t *handle,
struct inode *inode,
- struct ocfs2_dinode *fe,
+ struct buffer_head *fe_bh,
char *name,
struct ocfs2_dir_lookup_result *lookup,
struct inode *orphan_dir_inode)
@@ -1919,6 +1936,7 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
struct buffer_head *orphan_dir_bh = NULL;
int status = 0;
struct ocfs2_dinode *orphan_fe;
+ struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data;
mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
@@ -1959,13 +1977,31 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
goto leave;
}
+ /*
+ * We're going to journal the change of i_flags and i_orphaned_slot.
+ * It's safe anyway, though some callers may duplicate the journaling.
+ * Journaling within the func just make the logic look more
+ * straightforward.
+ */
+ status = ocfs2_journal_access_di(handle,
+ INODE_CACHE(inode),
+ fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto leave;
+ }
+
le32_add_cpu(&fe->i_flags, OCFS2_ORPHANED_FL);
+ OCFS2_I(inode)->ip_flags &= ~OCFS2_INODE_SKIP_ORPHAN_DIR;
/* Record which orphan dir our inode now resides
* in. delete_inode will use this to determine which orphan
* dir to lock. */
fe->i_orphaned_slot = cpu_to_le16(osb->slot_num);
+ ocfs2_journal_dirty(handle, fe_bh);
+
mlog(0, "Inode %llu orphaned in slot %d\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num);
@@ -2123,7 +2159,7 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
}
di = (struct ocfs2_dinode *)new_di_bh->b_data;
- status = ocfs2_orphan_add(osb, handle, inode, di, orphan_name,
+ status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name,
&orphan_insert, orphan_dir);
if (status < 0) {
mlog_errno(status);
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 1238b491db90..adf5e2ebc2c4 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -763,8 +763,18 @@ static inline unsigned int ocfs2_megabytes_to_clusters(struct super_block *sb,
return megs << (20 - OCFS2_SB(sb)->s_clustersize_bits);
}
-#define ocfs2_set_bit ext2_set_bit
-#define ocfs2_clear_bit ext2_clear_bit
+static inline void _ocfs2_set_bit(unsigned int bit, unsigned long *bitmap)
+{
+ ext2_set_bit(bit, bitmap);
+}
+#define ocfs2_set_bit(bit, addr) _ocfs2_set_bit((bit), (unsigned long *)(addr))
+
+static inline void _ocfs2_clear_bit(unsigned int bit, unsigned long *bitmap)
+{
+ ext2_clear_bit(bit, bitmap);
+}
+#define ocfs2_clear_bit(bit, addr) _ocfs2_clear_bit((bit), (unsigned long *)(addr))
+
#define ocfs2_test_bit ext2_test_bit
#define ocfs2_find_next_zero_bit ext2_find_next_zero_bit
#define ocfs2_find_next_bit ext2_find_next_bit
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 355f41d1d520..ab42a74c7539 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -3,6 +3,7 @@
*/
#include <linux/spinlock.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/quota.h>
#include <linux/quotaops.h>
#include <linux/dqblk_qtree.h>
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index a6467f3d262e..9ad49305f450 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -3,6 +3,7 @@
*/
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/quota.h>
#include <linux/quotaops.h>
#include <linux/module.h>
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 9e96921dffda..5cbcd0f008fc 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -37,7 +37,6 @@
#include <linux/bio.h>
#include <linux/blkdev.h>
-#include <linux/gfp.h>
#include <linux/slab.h>
#include <linux/writeback.h>
#include <linux/pagevec.h>
@@ -4075,6 +4074,7 @@ static int ocfs2_complete_reflink(struct inode *s_inode,
OCFS2_I(t_inode)->ip_dyn_features = OCFS2_I(s_inode)->ip_dyn_features;
spin_unlock(&OCFS2_I(t_inode)->ip_lock);
i_size_write(t_inode, size);
+ t_inode->i_blocks = s_inode->i_blocks;
di->i_xattr_inline_size = s_di->i_xattr_inline_size;
di->i_clusters = s_di->i_clusters;
@@ -4083,6 +4083,9 @@ static int ocfs2_complete_reflink(struct inode *s_inode,
di->i_attr = s_di->i_attr;
if (preserve) {
+ t_inode->i_uid = s_inode->i_uid;
+ t_inode->i_gid = s_inode->i_gid;
+ t_inode->i_mode = s_inode->i_mode;
di->i_uid = s_di->i_uid;
di->i_gid = s_di->i_gid;
di->i_mode = s_di->i_mode;
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index 7020e1253ffa..0d3049f696c5 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/crc32.h>
+#include <linux/slab.h>
#include <linux/module.h>
/* Needed for AOP_TRUNCATED_PAGE in mlog_errno() */
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index 5ae8812b2864..2dc57bca0688 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -21,6 +21,7 @@
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/reboot.h>
#include <asm/uaccess.h>
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index c3c60bc3e072..19ba00f28547 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -95,13 +95,6 @@ static inline int ocfs2_block_group_set_bits(handle_t *handle,
struct buffer_head *group_bh,
unsigned int bit_off,
unsigned int num_bits);
-static inline int ocfs2_block_group_clear_bits(handle_t *handle,
- struct inode *alloc_inode,
- struct ocfs2_group_desc *bg,
- struct buffer_head *group_bh,
- unsigned int bit_off,
- unsigned int num_bits);
-
static int ocfs2_relink_block_group(handle_t *handle,
struct inode *alloc_inode,
struct buffer_head *fe_bh,
@@ -152,7 +145,7 @@ static u32 ocfs2_bits_per_group(struct ocfs2_chain_list *cl)
#define do_error(fmt, ...) \
do{ \
- if (clean_error) \
+ if (resize) \
mlog(ML_ERROR, fmt "\n", ##__VA_ARGS__); \
else \
ocfs2_error(sb, fmt, ##__VA_ARGS__); \
@@ -160,7 +153,7 @@ static u32 ocfs2_bits_per_group(struct ocfs2_chain_list *cl)
static int ocfs2_validate_gd_self(struct super_block *sb,
struct buffer_head *bh,
- int clean_error)
+ int resize)
{
struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
@@ -211,7 +204,7 @@ static int ocfs2_validate_gd_self(struct super_block *sb,
static int ocfs2_validate_gd_parent(struct super_block *sb,
struct ocfs2_dinode *di,
struct buffer_head *bh,
- int clean_error)
+ int resize)
{
unsigned int max_bits;
struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
@@ -233,8 +226,11 @@ static int ocfs2_validate_gd_parent(struct super_block *sb,
return -EINVAL;
}
- if (le16_to_cpu(gd->bg_chain) >=
- le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) {
+ /* In resize, we may meet the case bg_chain == cl_next_free_rec. */
+ if ((le16_to_cpu(gd->bg_chain) >
+ le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) ||
+ ((le16_to_cpu(gd->bg_chain) ==
+ le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) && !resize)) {
do_error("Group descriptor #%llu has bad chain %u",
(unsigned long long)bh->b_blocknr,
le16_to_cpu(gd->bg_chain));
@@ -1975,18 +1971,18 @@ int ocfs2_claim_clusters(struct ocfs2_super *osb,
bits_wanted, cluster_start, num_clusters);
}
-static inline int ocfs2_block_group_clear_bits(handle_t *handle,
- struct inode *alloc_inode,
- struct ocfs2_group_desc *bg,
- struct buffer_head *group_bh,
- unsigned int bit_off,
- unsigned int num_bits)
+static int ocfs2_block_group_clear_bits(handle_t *handle,
+ struct inode *alloc_inode,
+ struct ocfs2_group_desc *bg,
+ struct buffer_head *group_bh,
+ unsigned int bit_off,
+ unsigned int num_bits,
+ void (*undo_fn)(unsigned int bit,
+ unsigned long *bmap))
{
int status;
unsigned int tmp;
- int journal_type = OCFS2_JOURNAL_ACCESS_WRITE;
struct ocfs2_group_desc *undo_bg = NULL;
- int cluster_bitmap = 0;
mlog_entry_void();
@@ -1996,20 +1992,18 @@ static inline int ocfs2_block_group_clear_bits(handle_t *handle,
mlog(0, "off = %u, num = %u\n", bit_off, num_bits);
- if (ocfs2_is_cluster_bitmap(alloc_inode))
- journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
-
+ BUG_ON(undo_fn && !ocfs2_is_cluster_bitmap(alloc_inode));
status = ocfs2_journal_access_gd(handle, INODE_CACHE(alloc_inode),
- group_bh, journal_type);
+ group_bh,
+ undo_fn ?
+ OCFS2_JOURNAL_ACCESS_UNDO :
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
}
- if (ocfs2_is_cluster_bitmap(alloc_inode))
- cluster_bitmap = 1;
-
- if (cluster_bitmap) {
+ if (undo_fn) {
jbd_lock_bh_state(group_bh);
undo_bg = (struct ocfs2_group_desc *)
bh2jh(group_bh)->b_committed_data;
@@ -2020,13 +2014,13 @@ static inline int ocfs2_block_group_clear_bits(handle_t *handle,
while(tmp--) {
ocfs2_clear_bit((bit_off + tmp),
(unsigned long *) bg->bg_bitmap);
- if (cluster_bitmap)
- ocfs2_set_bit(bit_off + tmp,
- (unsigned long *) undo_bg->bg_bitmap);
+ if (undo_fn)
+ undo_fn(bit_off + tmp,
+ (unsigned long *) undo_bg->bg_bitmap);
}
le16_add_cpu(&bg->bg_free_bits_count, num_bits);
- if (cluster_bitmap)
+ if (undo_fn)
jbd_unlock_bh_state(group_bh);
status = ocfs2_journal_dirty(handle, group_bh);
@@ -2039,12 +2033,14 @@ bail:
/*
* expects the suballoc inode to already be locked.
*/
-int ocfs2_free_suballoc_bits(handle_t *handle,
- struct inode *alloc_inode,
- struct buffer_head *alloc_bh,
- unsigned int start_bit,
- u64 bg_blkno,
- unsigned int count)
+static int _ocfs2_free_suballoc_bits(handle_t *handle,
+ struct inode *alloc_inode,
+ struct buffer_head *alloc_bh,
+ unsigned int start_bit,
+ u64 bg_blkno,
+ unsigned int count,
+ void (*undo_fn)(unsigned int bit,
+ unsigned long *bitmap))
{
int status = 0;
u32 tmp_used;
@@ -2079,7 +2075,7 @@ int ocfs2_free_suballoc_bits(handle_t *handle,
status = ocfs2_block_group_clear_bits(handle, alloc_inode,
group, group_bh,
- start_bit, count);
+ start_bit, count, undo_fn);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -2110,6 +2106,17 @@ bail:
return status;
}
+int ocfs2_free_suballoc_bits(handle_t *handle,
+ struct inode *alloc_inode,
+ struct buffer_head *alloc_bh,
+ unsigned int start_bit,
+ u64 bg_blkno,
+ unsigned int count)
+{
+ return _ocfs2_free_suballoc_bits(handle, alloc_inode, alloc_bh,
+ start_bit, bg_blkno, count, NULL);
+}
+
int ocfs2_free_dinode(handle_t *handle,
struct inode *inode_alloc_inode,
struct buffer_head *inode_alloc_bh,
@@ -2123,11 +2130,13 @@ int ocfs2_free_dinode(handle_t *handle,
inode_alloc_bh, bit, bg_blkno, 1);
}
-int ocfs2_free_clusters(handle_t *handle,
- struct inode *bitmap_inode,
- struct buffer_head *bitmap_bh,
- u64 start_blk,
- unsigned int num_clusters)
+static int _ocfs2_free_clusters(handle_t *handle,
+ struct inode *bitmap_inode,
+ struct buffer_head *bitmap_bh,
+ u64 start_blk,
+ unsigned int num_clusters,
+ void (*undo_fn)(unsigned int bit,
+ unsigned long *bitmap))
{
int status;
u16 bg_start_bit;
@@ -2154,9 +2163,9 @@ int ocfs2_free_clusters(handle_t *handle,
mlog(0, "bg_blkno = %llu, bg_start_bit = %u\n",
(unsigned long long)bg_blkno, bg_start_bit);
- status = ocfs2_free_suballoc_bits(handle, bitmap_inode, bitmap_bh,
- bg_start_bit, bg_blkno,
- num_clusters);
+ status = _ocfs2_free_suballoc_bits(handle, bitmap_inode, bitmap_bh,
+ bg_start_bit, bg_blkno,
+ num_clusters, undo_fn);
if (status < 0) {
mlog_errno(status);
goto out;
@@ -2170,6 +2179,32 @@ out:
return status;
}
+int ocfs2_free_clusters(handle_t *handle,
+ struct inode *bitmap_inode,
+ struct buffer_head *bitmap_bh,
+ u64 start_blk,
+ unsigned int num_clusters)
+{
+ return _ocfs2_free_clusters(handle, bitmap_inode, bitmap_bh,
+ start_blk, num_clusters,
+ _ocfs2_set_bit);
+}
+
+/*
+ * Give never-used clusters back to the global bitmap. We don't need
+ * to protect these bits in the undo buffer.
+ */
+int ocfs2_release_clusters(handle_t *handle,
+ struct inode *bitmap_inode,
+ struct buffer_head *bitmap_bh,
+ u64 start_blk,
+ unsigned int num_clusters)
+{
+ return _ocfs2_free_clusters(handle, bitmap_inode, bitmap_bh,
+ start_blk, num_clusters,
+ _ocfs2_clear_bit);
+}
+
static inline void ocfs2_debug_bg(struct ocfs2_group_desc *bg)
{
printk("Block Group:\n");
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index fa60723c43e8..e0f46df357e6 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -127,6 +127,11 @@ int ocfs2_free_clusters(handle_t *handle,
struct buffer_head *bitmap_bh,
u64 start_blk,
unsigned int num_clusters);
+int ocfs2_release_clusters(handle_t *handle,
+ struct inode *bitmap_inode,
+ struct buffer_head *bitmap_bh,
+ u64 start_blk,
+ unsigned int num_clusters);
static inline u64 ocfs2_which_suballoc_group(u64 block, unsigned int bit)
{
diff --git a/fs/ocfs2/sysfile.c b/fs/ocfs2/sysfile.c
index 40e53702948c..bfe7190cdbf1 100644
--- a/fs/ocfs2/sysfile.c
+++ b/fs/ocfs2/sysfile.c
@@ -25,7 +25,6 @@
#include <linux/fs.h>
#include <linux/types.h>
-#include <linux/slab.h>
#include <linux/highmem.h>
#define MLOG_MASK_PREFIX ML_INODE
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index d1b0d386f6d1..3e7773089b96 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -1622,7 +1622,7 @@ static void ocfs2_xa_block_wipe_namevalue(struct ocfs2_xa_loc *loc)
/* Now tell xh->xh_entries about it */
for (i = 0; i < count; i++) {
offset = le16_to_cpu(xh->xh_entries[i].xe_name_offset);
- if (offset < namevalue_offset)
+ if (offset <= namevalue_offset)
le16_add_cpu(&xh->xh_entries[i].xe_name_offset,
namevalue_size);
}
@@ -6528,13 +6528,11 @@ static int ocfs2_create_empty_xattr_block(struct inode *inode,
int indexed)
{
int ret;
- struct ocfs2_alloc_context *meta_ac;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct ocfs2_xattr_set_ctxt ctxt = {
- .meta_ac = meta_ac,
- };
+ struct ocfs2_xattr_set_ctxt ctxt;
- ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
+ memset(&ctxt, 0, sizeof(ctxt));
+ ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &ctxt.meta_ac);
if (ret < 0) {
mlog_errno(ret);
return ret;
@@ -6556,7 +6554,7 @@ static int ocfs2_create_empty_xattr_block(struct inode *inode,
ocfs2_commit_trans(osb, ctxt.handle);
out:
- ocfs2_free_alloc_context(meta_ac);
+ ocfs2_free_alloc_context(ctxt.meta_ac);
return ret;
}
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index 75d9b5ba1d45..c82af6acc2e7 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -6,6 +6,7 @@
#include <linux/version.h>
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/vfs.h>
#include <linux/parser.h>
diff --git a/fs/open.c b/fs/open.c
index e17f54454b50..74e5cd9f718e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -10,7 +10,6 @@
#include <linux/fdtable.h>
#include <linux/fsnotify.h>
#include <linux/module.h>
-#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/namei.h>
#include <linux/backing-dev.h>
@@ -20,6 +19,7 @@
#include <linux/mount.h>
#include <linux/vfs.h>
#include <linux/fcntl.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/fs.h>
#include <linux/personality.h>
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index e8865c11777f..e238ab23a9e7 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/ctype.h>
#include <linux/genhd.h>
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c
index 49cfd5f54238..91babdae7587 100644
--- a/fs/partitions/efi.c
+++ b/fs/partitions/efi.c
@@ -95,6 +95,7 @@
************************************************************/
#include <linux/crc32.h>
#include <linux/math64.h>
+#include <linux/slab.h>
#include "check.h"
#include "efi.h"
diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c
index 0028d2ef0662..90be97f1f5a8 100644
--- a/fs/partitions/msdos.c
+++ b/fs/partitions/msdos.c
@@ -31,14 +31,17 @@
*/
#include <asm/unaligned.h>
-#define SYS_IND(p) (get_unaligned(&p->sys_ind))
-#define NR_SECTS(p) ({ __le32 __a = get_unaligned(&p->nr_sects); \
- le32_to_cpu(__a); \
- })
+#define SYS_IND(p) get_unaligned(&p->sys_ind)
-#define START_SECT(p) ({ __le32 __a = get_unaligned(&p->start_sect); \
- le32_to_cpu(__a); \
- })
+static inline sector_t nr_sects(struct partition *p)
+{
+ return (sector_t)get_unaligned_le32(&p->nr_sects);
+}
+
+static inline sector_t start_sect(struct partition *p)
+{
+ return (sector_t)get_unaligned_le32(&p->start_sect);
+}
static inline int is_extended_partition(struct partition *p)
{
@@ -104,13 +107,13 @@ static int aix_magic_present(unsigned char *p, struct block_device *bdev)
static void
parse_extended(struct parsed_partitions *state, struct block_device *bdev,
- u32 first_sector, u32 first_size)
+ sector_t first_sector, sector_t first_size)
{
struct partition *p;
Sector sect;
unsigned char *data;
- u32 this_sector, this_size;
- int sector_size = bdev_logical_block_size(bdev) / 512;
+ sector_t this_sector, this_size;
+ sector_t sector_size = bdev_logical_block_size(bdev) / 512;
int loopct = 0; /* number of links followed
without finding a data partition */
int i;
@@ -145,14 +148,14 @@ parse_extended(struct parsed_partitions *state, struct block_device *bdev,
* First process the data partition(s)
*/
for (i=0; i<4; i++, p++) {
- u32 offs, size, next;
- if (!NR_SECTS(p) || is_extended_partition(p))
+ sector_t offs, size, next;
+ if (!nr_sects(p) || is_extended_partition(p))
continue;
/* Check the 3rd and 4th entries -
these sometimes contain random garbage */
- offs = START_SECT(p)*sector_size;
- size = NR_SECTS(p)*sector_size;
+ offs = start_sect(p)*sector_size;
+ size = nr_sects(p)*sector_size;
next = this_sector + offs;
if (i >= 2) {
if (offs + size > this_size)
@@ -179,13 +182,13 @@ parse_extended(struct parsed_partitions *state, struct block_device *bdev,
*/
p -= 4;
for (i=0; i<4; i++, p++)
- if (NR_SECTS(p) && is_extended_partition(p))
+ if (nr_sects(p) && is_extended_partition(p))
break;
if (i == 4)
goto done; /* nothing left to do */
- this_sector = first_sector + START_SECT(p) * sector_size;
- this_size = NR_SECTS(p) * sector_size;
+ this_sector = first_sector + start_sect(p) * sector_size;
+ this_size = nr_sects(p) * sector_size;
put_dev_sector(sect);
}
done:
@@ -197,7 +200,7 @@ done:
static void
parse_solaris_x86(struct parsed_partitions *state, struct block_device *bdev,
- u32 offset, u32 size, int origin)
+ sector_t offset, sector_t size, int origin)
{
#ifdef CONFIG_SOLARIS_X86_PARTITION
Sector sect;
@@ -244,7 +247,7 @@ parse_solaris_x86(struct parsed_partitions *state, struct block_device *bdev,
*/
static void
parse_bsd(struct parsed_partitions *state, struct block_device *bdev,
- u32 offset, u32 size, int origin, char *flavour,
+ sector_t offset, sector_t size, int origin, char *flavour,
int max_partitions)
{
Sector sect;
@@ -263,7 +266,7 @@ parse_bsd(struct parsed_partitions *state, struct block_device *bdev,
if (le16_to_cpu(l->d_npartitions) < max_partitions)
max_partitions = le16_to_cpu(l->d_npartitions);
for (p = l->d_partitions; p - l->d_partitions < max_partitions; p++) {
- u32 bsd_start, bsd_size;
+ sector_t bsd_start, bsd_size;
if (state->next == state->limit)
break;
@@ -290,7 +293,7 @@ parse_bsd(struct parsed_partitions *state, struct block_device *bdev,
static void
parse_freebsd(struct parsed_partitions *state, struct block_device *bdev,
- u32 offset, u32 size, int origin)
+ sector_t offset, sector_t size, int origin)
{
#ifdef CONFIG_BSD_DISKLABEL
parse_bsd(state, bdev, offset, size, origin,
@@ -300,7 +303,7 @@ parse_freebsd(struct parsed_partitions *state, struct block_device *bdev,
static void
parse_netbsd(struct parsed_partitions *state, struct block_device *bdev,
- u32 offset, u32 size, int origin)
+ sector_t offset, sector_t size, int origin)
{
#ifdef CONFIG_BSD_DISKLABEL
parse_bsd(state, bdev, offset, size, origin,
@@ -310,7 +313,7 @@ parse_netbsd(struct parsed_partitions *state, struct block_device *bdev,
static void
parse_openbsd(struct parsed_partitions *state, struct block_device *bdev,
- u32 offset, u32 size, int origin)
+ sector_t offset, sector_t size, int origin)
{
#ifdef CONFIG_BSD_DISKLABEL
parse_bsd(state, bdev, offset, size, origin,
@@ -324,7 +327,7 @@ parse_openbsd(struct parsed_partitions *state, struct block_device *bdev,
*/
static void
parse_unixware(struct parsed_partitions *state, struct block_device *bdev,
- u32 offset, u32 size, int origin)
+ sector_t offset, sector_t size, int origin)
{
#ifdef CONFIG_UNIXWARE_DISKLABEL
Sector sect;
@@ -348,7 +351,8 @@ parse_unixware(struct parsed_partitions *state, struct block_device *bdev,
if (p->s_label != UNIXWARE_FS_UNUSED)
put_partition(state, state->next++,
- START_SECT(p), NR_SECTS(p));
+ le32_to_cpu(p->start_sect),
+ le32_to_cpu(p->nr_sects));
p++;
}
put_dev_sector(sect);
@@ -363,7 +367,7 @@ parse_unixware(struct parsed_partitions *state, struct block_device *bdev,
*/
static void
parse_minix(struct parsed_partitions *state, struct block_device *bdev,
- u32 offset, u32 size, int origin)
+ sector_t offset, sector_t size, int origin)
{
#ifdef CONFIG_MINIX_SUBPARTITION
Sector sect;
@@ -390,7 +394,7 @@ parse_minix(struct parsed_partitions *state, struct block_device *bdev,
/* add each partition in use */
if (SYS_IND(p) == MINIX_PARTITION)
put_partition(state, state->next++,
- START_SECT(p), NR_SECTS(p));
+ start_sect(p), nr_sects(p));
}
printk(" >\n");
}
@@ -401,7 +405,7 @@ parse_minix(struct parsed_partitions *state, struct block_device *bdev,
static struct {
unsigned char id;
void (*parse)(struct parsed_partitions *, struct block_device *,
- u32, u32, int);
+ sector_t, sector_t, int);
} subtypes[] = {
{FREEBSD_PARTITION, parse_freebsd},
{NETBSD_PARTITION, parse_netbsd},
@@ -415,7 +419,7 @@ static struct {
int msdos_partition(struct parsed_partitions *state, struct block_device *bdev)
{
- int sector_size = bdev_logical_block_size(bdev) / 512;
+ sector_t sector_size = bdev_logical_block_size(bdev) / 512;
Sector sect;
unsigned char *data;
struct partition *p;
@@ -483,14 +487,21 @@ int msdos_partition(struct parsed_partitions *state, struct block_device *bdev)
state->next = 5;
for (slot = 1 ; slot <= 4 ; slot++, p++) {
- u32 start = START_SECT(p)*sector_size;
- u32 size = NR_SECTS(p)*sector_size;
+ sector_t start = start_sect(p)*sector_size;
+ sector_t size = nr_sects(p)*sector_size;
if (!size)
continue;
if (is_extended_partition(p)) {
- /* prevent someone doing mkfs or mkswap on an
- extended partition, but leave room for LILO */
- put_partition(state, slot, start, size == 1 ? 1 : 2);
+ /*
+ * prevent someone doing mkfs or mkswap on an
+ * extended partition, but leave room for LILO
+ * FIXME: this uses one logical sector for > 512b
+ * sector, although it may not be enough/proper.
+ */
+ sector_t n = 2;
+ n = min(size, max(sector_size, n));
+ put_partition(state, slot, start, n);
+
printk(" <");
parse_extended(state, bdev, start, size);
printk(" >");
@@ -513,7 +524,7 @@ int msdos_partition(struct parsed_partitions *state, struct block_device *bdev)
unsigned char id = SYS_IND(p);
int n;
- if (!NR_SECTS(p))
+ if (!nr_sects(p))
continue;
for (n = 0; subtypes[n].parse && id != subtypes[n].id; n++)
@@ -521,8 +532,8 @@ int msdos_partition(struct parsed_partitions *state, struct block_device *bdev)
if (!subtypes[n].parse)
continue;
- subtypes[n].parse(state, bdev, START_SECT(p)*sector_size,
- NR_SECTS(p)*sector_size, slot);
+ subtypes[n].parse(state, bdev, start_sect(p)*sector_size,
+ nr_sects(p)*sector_size, slot);
}
put_dev_sector(sect);
return 1;
diff --git a/fs/proc/array.c b/fs/proc/array.c
index aa8637b81028..e51f2ec2c5e5 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -68,7 +68,6 @@
#include <linux/hugetlb.h>
#include <linux/pagemap.h>
#include <linux/swap.h>
-#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/signal.h>
#include <linux/highmem.h>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index a7310841c831..8418fcc0a6ab 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -81,6 +81,7 @@
#include <linux/elf.h>
#include <linux/pid_namespace.h>
#include <linux/fs_struct.h>
+#include <linux/slab.h>
#include "internal.h"
/* NOTE:
@@ -442,12 +443,13 @@ static const struct file_operations proc_lstats_operations = {
unsigned long badness(struct task_struct *p, unsigned long uptime);
static int proc_oom_score(struct task_struct *task, char *buffer)
{
- unsigned long points;
+ unsigned long points = 0;
struct timespec uptime;
do_posix_clock_monotonic_gettime(&uptime);
read_lock(&tasklist_lock);
- points = badness(task->group_leader, uptime.tv_sec);
+ if (pid_alive(task))
+ points = badness(task, uptime.tv_sec);
read_unlock(&tasklist_lock);
return sprintf(buffer, "%lu\n", points);
}
@@ -2907,7 +2909,7 @@ out_no_task:
*/
static const struct pid_entry tid_base_stuff[] = {
DIR("fd", S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
- DIR("fdinfo", S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fd_operations),
+ DIR("fdinfo", S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
REG("environ", S_IRUSR, proc_environ_operations),
INF("auxv", S_IRUSR, proc_pid_auxv),
ONE("status", S_IRUGO, proc_pid_status),
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 08f4d71dacd7..43c127490606 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -13,6 +13,7 @@
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/init.h>
#include <linux/idr.h>
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 445a02bcaab3..d35b23238fb1 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/smp_lock.h>
#include <linux/sysctl.h>
+#include <linux/slab.h>
#include <asm/system.h>
#include <asm/uaccess.h>
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index a44a7897fd4d..19979a2ce272 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -19,6 +19,7 @@
#include <linux/highmem.h>
#include <linux/bootmem.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/list.h>
@@ -490,7 +491,7 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
}
read_unlock(&kclist_lock);
- if (m == NULL) {
+ if (&m->list == &kclist_head) {
if (clear_user(buffer, tsz))
return -EFAULT;
} else if (is_vmalloc_or_module_addr((void *)start)) {
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index 9fe7d7ebe115..b1822dde55c2 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -21,7 +21,6 @@
#include <linux/mmzone.h>
#include <linux/pagemap.h>
#include <linux/swap.h>
-#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/seq_file.h>
#include <linux/hugetlb.h>
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index f8650dce74fb..ce94801f48ca 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -12,6 +12,7 @@
#include <linux/string.h>
#include <linux/of.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <asm/prom.h>
#include <asm/uaccess.h>
#include "internal.h"
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 04d1270f1c38..9020ac15baaa 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -14,6 +14,7 @@
#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/module.h>
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index b9b7aad2003d..bf31b03fc275 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -1,6 +1,5 @@
#include <linux/cpumask.h>
#include <linux/fs.h>
-#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 183f8ff5f400..070553427dd5 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -4,6 +4,7 @@
#include <linux/seq_file.h>
#include <linux/highmem.h>
#include <linux/ptrace.h>
+#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/mempolicy.h>
#include <linux/swap.h>
@@ -406,6 +407,7 @@ static int show_smap(struct seq_file *m, void *v)
memset(&mss, 0, sizeof mss);
mss.vma = vma;
+ /* mmap_sem is held in m_start */
if (vma->vm_mm && !is_vm_hugetlb_page(vma))
walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
@@ -552,7 +554,8 @@ const struct file_operations proc_clear_refs_operations = {
};
struct pagemapread {
- u64 __user *out, *end;
+ int pos, len;
+ u64 *buffer;
};
#define PM_ENTRY_BYTES sizeof(u64)
@@ -575,10 +578,8 @@ struct pagemapread {
static int add_to_pagemap(unsigned long addr, u64 pfn,
struct pagemapread *pm)
{
- if (put_user(pfn, pm->out))
- return -EFAULT;
- pm->out++;
- if (pm->out >= pm->end)
+ pm->buffer[pm->pos++] = pfn;
+ if (pm->pos >= pm->len)
return PM_END_OF_BUFFER;
return 0;
}
@@ -661,31 +662,18 @@ static u64 huge_pte_to_pagemap_entry(pte_t pte, int offset)
return pme;
}
-static int pagemap_hugetlb_range(pte_t *pte, unsigned long addr,
- unsigned long end, struct mm_walk *walk)
+/* This function walks within one hugetlb entry in the single call */
+static int pagemap_hugetlb_range(pte_t *pte, unsigned long hmask,
+ unsigned long addr, unsigned long end,
+ struct mm_walk *walk)
{
- struct vm_area_struct *vma;
struct pagemapread *pm = walk->private;
- struct hstate *hs = NULL;
int err = 0;
+ u64 pfn;
- vma = find_vma(walk->mm, addr);
- if (vma)
- hs = hstate_vma(vma);
for (; addr != end; addr += PAGE_SIZE) {
- u64 pfn = PM_NOT_PRESENT;
-
- if (vma && (addr >= vma->vm_end)) {
- vma = find_vma(walk->mm, addr);
- if (vma)
- hs = hstate_vma(vma);
- }
-
- if (vma && (vma->vm_start <= addr) && is_vm_hugetlb_page(vma)) {
- /* calculate pfn of the "raw" page in the hugepage. */
- int offset = (addr & ~huge_page_mask(hs)) >> PAGE_SHIFT;
- pfn = huge_pte_to_pagemap_entry(*pte, offset);
- }
+ int offset = (addr & ~hmask) >> PAGE_SHIFT;
+ pfn = huge_pte_to_pagemap_entry(*pte, offset);
err = add_to_pagemap(addr, pfn, pm);
if (err)
return err;
@@ -720,21 +708,20 @@ static int pagemap_hugetlb_range(pte_t *pte, unsigned long addr,
* determine which areas of memory are actually mapped and llseek to
* skip over unmapped regions.
*/
+#define PAGEMAP_WALK_SIZE (PMD_SIZE)
static ssize_t pagemap_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
- struct page **pages, *page;
- unsigned long uaddr, uend;
struct mm_struct *mm;
struct pagemapread pm;
- int pagecount;
int ret = -ESRCH;
struct mm_walk pagemap_walk = {};
unsigned long src;
unsigned long svpfn;
unsigned long start_vaddr;
unsigned long end_vaddr;
+ int copied = 0;
if (!task)
goto out;
@@ -757,35 +744,12 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
if (!mm)
goto out_task;
-
- uaddr = (unsigned long)buf & PAGE_MASK;
- uend = (unsigned long)(buf + count);
- pagecount = (PAGE_ALIGN(uend) - uaddr) / PAGE_SIZE;
- ret = 0;
- if (pagecount == 0)
- goto out_mm;
- pages = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
+ pm.len = PM_ENTRY_BYTES * (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
+ pm.buffer = kmalloc(pm.len, GFP_TEMPORARY);
ret = -ENOMEM;
- if (!pages)
+ if (!pm.buffer)
goto out_mm;
- down_read(&current->mm->mmap_sem);
- ret = get_user_pages(current, current->mm, uaddr, pagecount,
- 1, 0, pages, NULL);
- up_read(&current->mm->mmap_sem);
-
- if (ret < 0)
- goto out_free;
-
- if (ret != pagecount) {
- pagecount = ret;
- ret = -EFAULT;
- goto out_pages;
- }
-
- pm.out = (u64 __user *)buf;
- pm.end = (u64 __user *)(buf + count);
-
pagemap_walk.pmd_entry = pagemap_pte_range;
pagemap_walk.pte_hole = pagemap_pte_hole;
pagemap_walk.hugetlb_entry = pagemap_hugetlb_range;
@@ -807,23 +771,36 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
* user buffer is tracked in "pm", and the walk
* will stop when we hit the end of the buffer.
*/
- ret = walk_page_range(start_vaddr, end_vaddr, &pagemap_walk);
- if (ret == PM_END_OF_BUFFER)
- ret = 0;
- /* don't need mmap_sem for these, but this looks cleaner */
- *ppos += (char __user *)pm.out - buf;
- if (!ret)
- ret = (char __user *)pm.out - buf;
-
-out_pages:
- for (; pagecount; pagecount--) {
- page = pages[pagecount-1];
- if (!PageReserved(page))
- SetPageDirty(page);
- page_cache_release(page);
+ ret = 0;
+ while (count && (start_vaddr < end_vaddr)) {
+ int len;
+ unsigned long end;
+
+ pm.pos = 0;
+ end = start_vaddr + PAGEMAP_WALK_SIZE;
+ /* overflow ? */
+ if (end < start_vaddr || end > end_vaddr)
+ end = end_vaddr;
+ down_read(&mm->mmap_sem);
+ ret = walk_page_range(start_vaddr, end, &pagemap_walk);
+ up_read(&mm->mmap_sem);
+ start_vaddr = end;
+
+ len = min(count, PM_ENTRY_BYTES * pm.pos);
+ if (copy_to_user(buf, pm.buffer, len)) {
+ ret = -EFAULT;
+ goto out_free;
+ }
+ copied += len;
+ buf += len;
+ count -= len;
}
+ *ppos += copied;
+ if (!ret || ret == PM_END_OF_BUFFER)
+ ret = copied;
+
out_free:
- kfree(pages);
+ kfree(pm.buffer);
out_mm:
mmput(mm);
out_task:
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 5d9fd64ef81a..46d4b5d72bd3 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -5,6 +5,7 @@
#include <linux/fs_struct.h>
#include <linux/mount.h>
#include <linux/ptrace.h>
+#include <linux/slab.h>
#include <linux/seq_file.h>
#include "internal.h"
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 0872afa58d39..9fbc99ec799a 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -12,6 +12,7 @@
#include <linux/user.h>
#include <linux/elf.h>
#include <linux/elfcore.h>
+#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/bootmem.h>
#include <linux/init.h>
diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
index dad7fb247ddc..3e21b1e2ad3a 100644
--- a/fs/quota/Kconfig
+++ b/fs/quota/Kconfig
@@ -33,6 +33,14 @@ config PRINT_QUOTA_WARNING
Note that this behavior is currently deprecated and may go away in
future. Please use notification via netlink socket instead.
+config QUOTA_DEBUG
+ bool "Additional quota sanity checks"
+ depends on QUOTA
+ default n
+ help
+ If you say Y here, quota subsystem will perform some additional
+ sanity checks of quota internal structures. If unsure, say N.
+
# Generic support for tree structured quota files. Selected when needed.
config QUOTA_TREE
tristate
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index e0b870f4749f..788b5802a7ce 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -80,8 +80,6 @@
#include <asm/uaccess.h>
-#define __DQUOT_PARANOIA
-
/*
* There are three quota SMP locks. dq_list_lock protects all lists with quotas
* and quota formats, dqstats structure containing statistics about the lists
@@ -695,7 +693,7 @@ void dqput(struct dquot *dquot)
if (!dquot)
return;
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
if (!atomic_read(&dquot->dq_count)) {
printk("VFS: dqput: trying to free free dquot\n");
printk("VFS: device %s, dquot of %s %d\n",
@@ -748,7 +746,7 @@ we_slept:
goto we_slept;
}
atomic_dec(&dquot->dq_count);
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
/* sanity check */
BUG_ON(!list_empty(&dquot->dq_free));
#endif
@@ -845,7 +843,7 @@ we_slept:
dquot = NULL;
goto out;
}
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
BUG_ON(!dquot->dq_sb); /* Has somebody invalidated entry under us? */
#endif
out:
@@ -874,14 +872,18 @@ static int dqinit_needed(struct inode *inode, int type)
static void add_dquot_ref(struct super_block *sb, int type)
{
struct inode *inode, *old_inode = NULL;
+#ifdef CONFIG_QUOTA_DEBUG
int reserved = 0;
+#endif
spin_lock(&inode_lock);
list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE|I_NEW))
continue;
+#ifdef CONFIG_QUOTA_DEBUG
if (unlikely(inode_get_rsv_space(inode) > 0))
reserved = 1;
+#endif
if (!atomic_read(&inode->i_writecount))
continue;
if (!dqinit_needed(inode, type))
@@ -903,11 +905,13 @@ static void add_dquot_ref(struct super_block *sb, int type)
spin_unlock(&inode_lock);
iput(old_inode);
+#ifdef CONFIG_QUOTA_DEBUG
if (reserved) {
printk(KERN_WARNING "VFS (%s): Writes happened before quota"
" was turned on thus quota information is probably "
"inconsistent. Please run quotacheck(8).\n", sb->s_id);
}
+#endif
}
/*
@@ -934,7 +938,7 @@ static int remove_inode_dquot_ref(struct inode *inode, int type,
inode->i_dquot[type] = NULL;
if (dquot) {
if (dqput_blocks(dquot)) {
-#ifdef __DQUOT_PARANOIA
+#ifdef CONFIG_QUOTA_DEBUG
if (atomic_read(&dquot->dq_count) != 1)
printk(KERN_WARNING "VFS: Adding dquot with dq_count %d to dispose list.\n", atomic_read(&dquot->dq_count));
#endif
@@ -2322,34 +2326,34 @@ static int do_set_dqblk(struct dquot *dquot, struct if_dqblk *di)
if (di->dqb_valid & QIF_SPACE) {
dm->dqb_curspace = di->dqb_curspace - dm->dqb_rsvspace;
check_blim = 1;
- __set_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
+ set_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_BLIMITS) {
dm->dqb_bsoftlimit = qbtos(di->dqb_bsoftlimit);
dm->dqb_bhardlimit = qbtos(di->dqb_bhardlimit);
check_blim = 1;
- __set_bit(DQ_LASTSET_B + QIF_BLIMITS_B, &dquot->dq_flags);
+ set_bit(DQ_LASTSET_B + QIF_BLIMITS_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_INODES) {
dm->dqb_curinodes = di->dqb_curinodes;
check_ilim = 1;
- __set_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags);
+ set_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_ILIMITS) {
dm->dqb_isoftlimit = di->dqb_isoftlimit;
dm->dqb_ihardlimit = di->dqb_ihardlimit;
check_ilim = 1;
- __set_bit(DQ_LASTSET_B + QIF_ILIMITS_B, &dquot->dq_flags);
+ set_bit(DQ_LASTSET_B + QIF_ILIMITS_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_BTIME) {
dm->dqb_btime = di->dqb_btime;
check_blim = 1;
- __set_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags);
+ set_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_ITIME) {
dm->dqb_itime = di->dqb_itime;
check_ilim = 1;
- __set_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags);
+ set_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags);
}
if (check_blim) {
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index 2663ed90fb03..d67908b407d9 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -5,6 +5,7 @@
#include <linux/kernel.h>
#include <linux/quotaops.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <net/netlink.h>
#include <net/genetlink.h>
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index 1739a4aba25f..5ea4ad81a429 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -21,6 +21,7 @@
#include <linux/pagevec.h>
#include <linux/mman.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include "internal.h"
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index a6090aa1a7c1..c94853473ca9 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -35,6 +35,7 @@
#include <linux/sched.h>
#include <linux/parser.h>
#include <linux/magic.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include "internal.h"
diff --git a/fs/read_write.c b/fs/read_write.c
index b7f4a1f94d48..113386d6fd2d 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -258,6 +258,7 @@ ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *pp
init_sync_kiocb(&kiocb, filp);
kiocb.ki_pos = *ppos;
kiocb.ki_left = len;
+ kiocb.ki_nbytes = len;
for (;;) {
ret = filp->f_op->aio_read(&kiocb, &iov, 1, kiocb.ki_pos);
@@ -313,6 +314,7 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof
init_sync_kiocb(&kiocb, filp);
kiocb.ki_pos = *ppos;
kiocb.ki_left = len;
+ kiocb.ki_nbytes = len;
for (;;) {
ret = filp->f_op->aio_write(&kiocb, &iov, 1, kiocb.ki_pos);
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index c094f58c7448..07930449a958 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -8,6 +8,7 @@
#include <linux/reiserfs_fs.h>
#include <linux/stat.h>
#include <linux/buffer_head.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
extern const struct reiserfs_key MIN_KEY;
@@ -45,8 +46,6 @@ static inline bool is_privroot_deh(struct dentry *dir,
struct reiserfs_de_head *deh)
{
struct dentry *privroot = REISERFS_SB(dir->d_sb)->priv_root;
- if (reiserfs_expose_privroot(dir->d_sb))
- return 0;
return (dir == dir->d_parent && privroot->d_inode &&
deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid);
}
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 6591cb21edf6..1e4250bc3a6f 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -35,6 +35,7 @@
**/
#include <linux/time.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include <linux/reiserfs_fs.h>
#include <linux/buffer_head.h>
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index d1da94b82d8f..dc2c65e04853 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -11,6 +11,7 @@
#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/highmem.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/unaligned.h>
#include <linux/buffer_head.h>
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index ba98546fabbd..19fbc810e8e7 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -50,6 +50,7 @@
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <linux/uaccess.h>
+#include <linux/slab.h>
#include <asm/system.h>
@@ -2217,6 +2218,15 @@ static int journal_read_transaction(struct super_block *sb,
brelse(d_bh);
return 1;
}
+
+ if (bdev_read_only(sb->s_bdev)) {
+ reiserfs_warning(sb, "clm-2076",
+ "device is readonly, unable to replay log");
+ brelse(c_bh);
+ brelse(d_bh);
+ return -EROFS;
+ }
+
trans_id = get_desc_trans_id(desc);
/* now we know we've got a good transaction, and it was inside the valid time ranges */
log_blocks = kmalloc(get_desc_trans_len(desc) *
@@ -2459,12 +2469,6 @@ static int journal_read(struct super_block *sb)
goto start_log_replay;
}
- if (continue_replay && bdev_read_only(sb->s_bdev)) {
- reiserfs_warning(sb, "clm-2076",
- "device is readonly, unable to replay log");
- return -1;
- }
-
/* ok, there are transactions that need to be replayed. start with the first log block, find
** all the valid transactions, and pick out the oldest.
*/
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 96e4cbbfaa18..d0c43cb99ffc 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -13,6 +13,7 @@
#include <linux/time.h>
#include <linux/bitops.h>
+#include <linux/slab.h>
#include <linux/reiserfs_fs.h>
#include <linux/reiserfs_acl.h>
#include <linux/reiserfs_xattr.h>
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 04bf5d791bda..59125fb36d42 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -12,6 +12,7 @@
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
#include <asm/uaccess.h>
@@ -1618,10 +1619,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
save_mount_options(s, data);
sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
- if (!sbi) {
- errval = -ENOMEM;
- goto error_alloc;
- }
+ if (!sbi)
+ return -ENOMEM;
s->s_fs_info = sbi;
/* Set default values for options: non-aggressive tails, RO on errors */
REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
@@ -1878,12 +1877,12 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
return (0);
error:
- reiserfs_write_unlock(s);
-error_alloc:
if (jinit_done) { /* kill the commit thread, free journal ram */
journal_release_error(NULL, s);
}
+ reiserfs_write_unlock(s);
+
reiserfs_free_bitmap_cache(s);
if (SB_BUFFER_WITH_SB(s))
brelse(SB_BUFFER_WITH_SB(s));
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 37d034ca7d99..e7cc00e636dc 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -38,6 +38,7 @@
#include <linux/dcache.h>
#include <linux/namei.h>
#include <linux/errno.h>
+#include <linux/gfp.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/pagemap.h>
@@ -553,7 +554,7 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
if (!err && new_size < i_size_read(dentry->d_inode)) {
struct iattr newattrs = {
.ia_ctime = current_fs_time(inode->i_sb),
- .ia_size = buffer_size,
+ .ia_size = new_size,
.ia_valid = ATTR_SIZE | ATTR_CTIME,
};
@@ -972,21 +973,13 @@ int reiserfs_permission(struct inode *inode, int mask)
return generic_permission(inode, mask, NULL);
}
-/* This will catch lookups from the fs root to .reiserfs_priv */
-static int
-xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
+static int xattr_hide_revalidate(struct dentry *dentry, struct nameidata *nd)
{
- struct dentry *priv_root = REISERFS_SB(dentry->d_sb)->priv_root;
- if (container_of(q1, struct dentry, d_name) == priv_root)
- return -ENOENT;
- if (q1->len == name->len &&
- !memcmp(q1->name, name->name, name->len))
- return 0;
- return 1;
+ return -EPERM;
}
static const struct dentry_operations xattr_lookup_poison_ops = {
- .d_compare = xattr_lookup_poison,
+ .d_revalidate = xattr_hide_revalidate,
};
int reiserfs_lookup_privroot(struct super_block *s)
@@ -1000,8 +993,7 @@ int reiserfs_lookup_privroot(struct super_block *s)
strlen(PRIVROOT_NAME));
if (!IS_ERR(dentry)) {
REISERFS_SB(s)->priv_root = dentry;
- if (!reiserfs_expose_privroot(s))
- s->s_root->d_op = &xattr_lookup_poison_ops;
+ dentry->d_op = &xattr_lookup_poison_ops;
if (dentry->d_inode)
dentry->d_inode->i_flags |= S_PRIVATE;
} else
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index dd20a7883f0f..9cdb759645a9 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -5,6 +5,7 @@
#include <linux/errno.h>
#include <linux/pagemap.h>
#include <linux/xattr.h>
+#include <linux/slab.h>
#include <linux/posix_acl_xattr.h>
#include <linux/reiserfs_xattr.h>
#include <linux/reiserfs_acl.h>
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index d8b5bfcbdd30..7271a477c041 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -3,6 +3,7 @@
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/xattr.h>
+#include <linux/slab.h>
#include <linux/reiserfs_xattr.h>
#include <linux/security.h>
#include <asm/uaccess.h>
@@ -76,7 +77,7 @@ int reiserfs_security_init(struct inode *dir, struct inode *inode,
return error;
}
- if (sec->length) {
+ if (sec->length && reiserfs_xattrs_initialized(inode->i_sb)) {
blocks = reiserfs_xattr_jcreate_nblocks(inode) +
reiserfs_xattr_nblocks(inode, sec->length);
/* We don't want to count the directories twice if we have
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 1dabe4ee02fe..f329849ce3c0 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/list.h>
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
index 92d5e8ffb639..dbf6548bbf06 100644
--- a/fs/smbfs/file.c
+++ b/fs/smbfs/file.c
@@ -13,7 +13,6 @@
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/mm.h>
-#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/smp_lock.h>
#include <linux/net.h>
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index 1c4c8f089970..dfa1d67f8fca 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -479,6 +479,7 @@ smb_put_super(struct super_block *sb)
if (server->conn_pid)
kill_pid(server->conn_pid, SIGTERM, 1);
+ bdi_destroy(&server->bdi);
kfree(server->ops);
smb_unload_nls(server);
sb->s_fs_info = NULL;
@@ -525,6 +526,11 @@ static int smb_fill_super(struct super_block *sb, void *raw_data, int silent)
if (!server)
goto out_no_server;
sb->s_fs_info = server;
+
+ if (bdi_setup_and_register(&server->bdi, "smbfs", BDI_CAP_MAP_COPY))
+ goto out_bdi;
+
+ sb->s_bdi = &server->bdi;
server->super_block = sb;
server->mnt = NULL;
@@ -624,6 +630,8 @@ out_no_smbiod:
out_bad_option:
kfree(mem);
out_no_mem:
+ bdi_destroy(&server->bdi);
+out_bdi:
if (!server->mnt)
printk(KERN_ERR "smb_fill_super: allocation failure\n");
sb->s_fs_info = NULL;
diff --git a/fs/smbfs/smbiod.c b/fs/smbfs/smbiod.c
index 6bd9b691a463..0e39a924f10a 100644
--- a/fs/smbfs/smbiod.c
+++ b/fs/smbfs/smbiod.c
@@ -12,7 +12,6 @@
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/errno.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/file.h>
#include <linux/dcache.h>
diff --git a/fs/smbfs/symlink.c b/fs/smbfs/symlink.c
index 00b2909bd469..54350b59046b 100644
--- a/fs/smbfs/symlink.c
+++ b/fs/smbfs/symlink.c
@@ -15,6 +15,7 @@
#include <linux/pagemap.h>
#include <linux/net.h>
#include <linux/namei.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/system.h>
diff --git a/fs/splice.c b/fs/splice.c
index 39208663aaf1..9313b6124a2e 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -30,6 +30,7 @@
#include <linux/syscalls.h>
#include <linux/uio.h>
#include <linux/security.h>
+#include <linux/gfp.h>
/*
* Attempt to steal a page from a pipe buffer. This should perhaps go into
diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 1cb0d81b164b..653c030eb840 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -87,9 +87,8 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
u64 cur_index = index >> msblk->devblksize_log2;
int bytes, compressed, b = 0, k = 0, page = 0, avail;
-
- bh = kcalloc((msblk->block_size >> msblk->devblksize_log2) + 1,
- sizeof(*bh), GFP_KERNEL);
+ bh = kcalloc(((srclength + msblk->devblksize - 1)
+ >> msblk->devblksize_log2) + 1, sizeof(*bh), GFP_KERNEL);
if (bh == NULL)
return -ENOMEM;
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 3550aec2f655..48b6f4a385a6 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -275,7 +275,8 @@ allocate_root:
err = squashfs_read_inode(root, root_inode);
if (err) {
- iget_failed(root);
+ make_bad_inode(root);
+ iput(root);
goto failed_mount;
}
insert_inode_hash(root);
@@ -353,6 +354,7 @@ static void squashfs_put_super(struct super_block *sb)
kfree(sbi->id_table);
kfree(sbi->fragment_index);
kfree(sbi->meta_index);
+ kfree(sbi->inode_lookup_table);
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
}
diff --git a/fs/squashfs/symlink.c b/fs/squashfs/symlink.c
index e80be2022a7f..32b911f4ee39 100644
--- a/fs/squashfs/symlink.c
+++ b/fs/squashfs/symlink.c
@@ -33,7 +33,6 @@
#include <linux/fs.h>
#include <linux/vfs.h>
#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/string.h>
#include <linux/pagemap.h>
diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index 4dd70e04333b..7a603874e483 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -24,6 +24,7 @@
#include <linux/mutex.h>
#include <linux/buffer_head.h>
+#include <linux/slab.h>
#include <linux/zlib.h>
#include "squashfs_fs.h"
@@ -127,8 +128,9 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
goto release_mutex;
}
+ length = stream->total_out;
mutex_unlock(&msblk->read_data_mutex);
- return stream->total_out;
+ return length;
release_mutex:
mutex_unlock(&msblk->read_data_mutex);
diff --git a/fs/super.c b/fs/super.c
index f35ac6022109..1527e6a0ee35 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -37,6 +37,7 @@
#include <linux/kobject.h>
#include <linux/mutex.h>
#include <linux/file.h>
+#include <linux/backing-dev.h>
#include <asm/uaccess.h>
#include "internal.h"
@@ -693,6 +694,7 @@ int set_anon_super(struct super_block *s, void *data)
return -EMFILE;
}
s->s_dev = MKDEV(0, dev & MINORMASK);
+ s->s_bdi = &noop_backing_dev_info;
return 0;
}
@@ -954,10 +956,11 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
if (error < 0)
goto out_free_secdata;
BUG_ON(!mnt->mnt_sb);
+ WARN_ON(!mnt->mnt_sb->s_bdi);
- error = security_sb_kern_mount(mnt->mnt_sb, flags, secdata);
- if (error)
- goto out_sb;
+ error = security_sb_kern_mount(mnt->mnt_sb, flags, secdata);
+ if (error)
+ goto out_sb;
/*
* filesystems should never set s_maxbytes larger than MAX_LFS_FILESIZE
diff --git a/fs/sync.c b/fs/sync.c
index f557d71cb097..92b228176f7c 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -5,6 +5,7 @@
#include <linux/kernel.h>
#include <linux/file.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/writeback.h>
@@ -13,6 +14,7 @@
#include <linux/pagemap.h>
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
+#include <linux/backing-dev.h>
#include "internal.h"
#define VALID_FLAGS (SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE| \
@@ -31,7 +33,7 @@ static int __sync_filesystem(struct super_block *sb, int wait)
* This should be safe, as we require bdi backing to actually
* write out data in the first place
*/
- if (!sb->s_bdi)
+ if (!sb->s_bdi || sb->s_bdi == &noop_backing_dev_info)
return 0;
if (sb->s_qcop && sb->s_qcop->quota_sync)
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 082daaecac1b..a4a0a9419711 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -18,6 +18,7 @@
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/xattr.h>
#include <linux/security.h>
#include "sysfs.h"
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 0cb10884a2fc..776137828dca 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/magic.h>
+#include <linux/slab.h>
#include "sysfs.h"
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 1b9a3a1e8a17..b93ec51fa7ac 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -11,6 +11,7 @@
*/
#include <linux/fs.h>
+#include <linux/gfp.h>
#include <linux/mount.h>
#include <linux/module.h>
#include <linux/kobject.h>
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 1bfc95ad5f71..98158de91d24 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -14,6 +14,7 @@
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/time.h>
diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c
index 4775af401167..37fa7ed062d8 100644
--- a/fs/ubifs/commit.c
+++ b/fs/ubifs/commit.c
@@ -45,6 +45,7 @@
#include <linux/freezer.h>
#include <linux/kthread.h>
+#include <linux/slab.h>
#include "ubifs.h"
/**
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 90492327b383..c2a68baa782f 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -34,6 +34,7 @@
#include <linux/moduleparam.h>
#include <linux/debugfs.h>
#include <linux/math64.h>
+#include <linux/slab.h>
#ifdef CONFIG_UBIFS_FS_DEBUG
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index e26c02ab6cd5..5692cf72b807 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -52,6 +52,7 @@
#include "ubifs.h"
#include <linux/mount.h>
#include <linux/namei.h>
+#include <linux/slab.h>
static int read_block(struct inode *inode, void *addr, unsigned int block,
struct ubifs_data_node *dn)
diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c
index e5a3d8e96bb7..918d1582ca05 100644
--- a/fs/ubifs/gc.c
+++ b/fs/ubifs/gc.c
@@ -53,6 +53,7 @@
* good, and GC takes extra care when moving them.
*/
+#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/list_sort.h>
#include "ubifs.h"
diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
index e589fedaf1ef..77d5cf4a7547 100644
--- a/fs/ubifs/io.c
+++ b/fs/ubifs/io.c
@@ -51,6 +51,7 @@
*/
#include <linux/crc32.h>
+#include <linux/slab.h>
#include "ubifs.h"
/**
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index b2792e84d245..ad7f67b827ea 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -46,6 +46,7 @@
#include "ubifs.h"
#include <linux/crc16.h>
#include <linux/math64.h>
+#include <linux/slab.h>
/**
* do_calc_lpt_geom - calculate sizes for the LPT area.
diff --git a/fs/ubifs/lpt_commit.c b/fs/ubifs/lpt_commit.c
index 8cbfb8248025..13cb7a4237bf 100644
--- a/fs/ubifs/lpt_commit.c
+++ b/fs/ubifs/lpt_commit.c
@@ -26,6 +26,7 @@
*/
#include <linux/crc16.h>
+#include <linux/slab.h>
#include "ubifs.h"
/**
diff --git a/fs/ubifs/recovery.c b/fs/ubifs/recovery.c
index 868a55ee080f..109c6ea03bb5 100644
--- a/fs/ubifs/recovery.c
+++ b/fs/ubifs/recovery.c
@@ -31,6 +31,7 @@
*/
#include <linux/crc32.h>
+#include <linux/slab.h>
#include "ubifs.h"
/**
diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c
index 57085e43320f..96cb62c8a9dd 100644
--- a/fs/ubifs/sb.c
+++ b/fs/ubifs/sb.c
@@ -27,6 +27,7 @@
*/
#include "ubifs.h"
+#include <linux/slab.h>
#include <linux/random.h>
#include <linux/math64.h>
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index e5b1a7d00fa0..2194915220e5 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -31,6 +31,7 @@
*/
#include <linux/crc32.h>
+#include <linux/slab.h>
#include "ubifs.h"
/*
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index b2d976366a46..bd2542dad014 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -28,6 +28,7 @@
#include <linux/fs.h>
#include <linux/err.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 195830f47569..c74400f88fe0 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -56,6 +56,7 @@
*/
#include "ubifs.h"
+#include <linux/slab.h>
#include <linux/xattr.h>
#include <linux/posix_acl_xattr.h>
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index 19626e2491c4..9a9378b4eb5a 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -125,9 +125,8 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
mutex_lock(&sbi->s_alloc_mutex);
partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
- if (bloc->logicalBlockNum < 0 ||
- (bloc->logicalBlockNum + count) >
- partmap->s_partition_len) {
+ if (bloc->logicalBlockNum + count < count ||
+ (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
bloc->logicalBlockNum, 0, bloc->logicalBlockNum,
count, partmap->s_partition_len);
@@ -393,9 +392,8 @@ static void udf_table_free_blocks(struct super_block *sb,
mutex_lock(&sbi->s_alloc_mutex);
partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
- if (bloc->logicalBlockNum < 0 ||
- (bloc->logicalBlockNum + count) >
- partmap->s_partition_len) {
+ if (bloc->logicalBlockNum + count < count ||
+ (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
bloc->logicalBlockNum, 0, bloc->logicalBlockNum, count,
partmap->s_partition_len);
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 1eb06774ed90..4b6a46ccbf46 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -218,7 +218,7 @@ const struct file_operations udf_file_operations = {
.llseek = generic_file_llseek,
};
-static int udf_setattr(struct dentry *dentry, struct iattr *iattr)
+int udf_setattr(struct dentry *dentry, struct iattr *iattr)
{
struct inode *inode = dentry->d_inode;
int error;
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index bb863fe579ac..8a3fbd177cab 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1314,7 +1314,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
break;
case ICBTAG_FILE_TYPE_SYMLINK:
inode->i_data.a_ops = &udf_symlink_aops;
- inode->i_op = &page_symlink_inode_operations;
+ inode->i_op = &udf_symlink_inode_operations;
inode->i_mode = S_IFLNK | S_IRWXUGO;
break;
case ICBTAG_FILE_TYPE_MAIN:
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index db423ab078b1..75816025f95f 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -925,7 +925,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
iinfo = UDF_I(inode);
inode->i_mode = S_IFLNK | S_IRWXUGO;
inode->i_data.a_ops = &udf_symlink_aops;
- inode->i_op = &page_symlink_inode_operations;
+ inode->i_op = &udf_symlink_inode_operations;
if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
struct kernel_lb_addr eloc;
@@ -1393,6 +1393,7 @@ const struct export_operations udf_export_ops = {
const struct inode_operations udf_dir_inode_operations = {
.lookup = udf_lookup,
.create = udf_create,
+ .setattr = udf_setattr,
.link = udf_link,
.unlink = udf_unlink,
.symlink = udf_symlink,
@@ -1401,3 +1402,9 @@ const struct inode_operations udf_dir_inode_operations = {
.mknod = udf_mknod,
.rename = udf_rename,
};
+const struct inode_operations udf_symlink_inode_operations = {
+ .readlink = generic_readlink,
+ .follow_link = page_follow_link_light,
+ .put_link = page_put_link,
+ .setattr = udf_setattr,
+};
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index 4b540ee632d5..745eb209be0c 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -24,7 +24,6 @@
#include <linux/fs.h>
#include <linux/string.h>
-#include <linux/slab.h>
#include <linux/buffer_head.h>
uint32_t udf_get_pblock(struct super_block *sb, uint32_t block,
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index 852e91845688..16064787d2b7 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -26,7 +26,6 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/stat.h>
-#include <linux/slab.h>
#include <linux/pagemap.h>
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 4223ac855da9..702a1148e702 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -76,6 +76,7 @@ extern const struct inode_operations udf_dir_inode_operations;
extern const struct file_operations udf_dir_operations;
extern const struct inode_operations udf_file_inode_operations;
extern const struct file_operations udf_file_operations;
+extern const struct inode_operations udf_symlink_inode_operations;
extern const struct address_space_operations udf_aops;
extern const struct address_space_operations udf_adinicb_aops;
extern const struct address_space_operations udf_symlink_aops;
@@ -131,7 +132,7 @@ extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
/* file.c */
extern int udf_ioctl(struct inode *, struct file *, unsigned int,
unsigned long);
-
+extern int udf_setattr(struct dentry *dentry, struct iattr *iattr);
/* inode.c */
extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *);
extern int udf_sync_inode(struct inode *);
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index cefa8c8913e6..d03a90b6ad69 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -24,6 +24,7 @@
#include <linux/string.h> /* for memset */
#include <linux/nls.h>
#include <linux/crc-itu-t.h>
+#include <linux/slab.h>
#include "udf_sb.h"
diff --git a/fs/xattr_acl.c b/fs/xattr_acl.c
index 05ac0fe9c4d3..8d5a506c82eb 100644
--- a/fs/xattr_acl.c
+++ b/fs/xattr_acl.c
@@ -6,9 +6,9 @@
*/
#include <linux/module.h>
-#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
+#include <linux/gfp.h>
/*
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index bc7405585def..666c9db48eb6 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -17,6 +17,7 @@
*/
#include <linux/mm.h>
#include <linux/highmem.h>
+#include <linux/slab.h>
#include <linux/swap.h>
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index bf85bbe4a9ae..a7bc925c4d60 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -22,6 +22,7 @@
#include "xfs_inode.h"
#include "xfs_vnodeops.h"
#include "xfs_trace.h"
+#include <linux/slab.h>
#include <linux/xattr.h>
#include <linux/posix_acl_xattr.h>
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 99628508cb11..0f8b9968a803 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -40,6 +40,7 @@
#include "xfs_vnodeops.h"
#include "xfs_trace.h"
#include "xfs_bmap.h"
+#include <linux/gfp.h>
#include <linux/mpage.h>
#include <linux/pagevec.h>
#include <linux/writeback.h>
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index bd111b7e1daa..44c2b0ef9a41 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -18,7 +18,7 @@
#include "xfs.h"
#include <linux/stddef.h>
#include <linux/errno.h>
-#include <linux/slab.h>
+#include <linux/gfp.h>
#include <linux/pagemap.h>
#include <linux/init.h>
#include <linux/vmalloc.h>
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 4ea1ee18aded..7b26cc2fd284 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -58,6 +58,7 @@
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <linux/exportfs.h>
/*
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 0bf6d61f0528..593c05b4df8d 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -18,6 +18,7 @@
#include <linux/compat.h>
#include <linux/ioctl.h>
#include <linux/mount.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include "xfs.h"
#include "xfs_fs.h"
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 61a99608731e..e65a7937f3a4 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -56,6 +56,7 @@
#include <linux/security.h>
#include <linux/falloc.h>
#include <linux/fiemap.h>
+#include <linux/slab.h>
/*
* Bring the timestamps in the XFS inode uptodate.
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 71345a370d9f..29f1edca76de 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -61,6 +61,7 @@
#include <linux/namei.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/mount.h>
#include <linux/mempool.h>
#include <linux/writeback.h>
@@ -1208,6 +1209,7 @@ xfs_fs_put_super(
xfs_unmountfs(mp);
xfs_freesb(mp);
+ xfs_inode_shrinker_unregister(mp);
xfs_icsb_destroy_counters(mp);
xfs_close_devices(mp);
xfs_dmops_put(mp);
@@ -1621,6 +1623,8 @@ xfs_fs_fill_super(
if (error)
goto fail_vnrele;
+ xfs_inode_shrinker_register(mp);
+
kfree(mtpt);
return 0;
@@ -1866,6 +1870,7 @@ init_xfs_fs(void)
goto out_cleanup_procfs;
vfs_initquota();
+ xfs_inode_shrinker_init();
error = register_filesystem(&xfs_fs_type);
if (error)
@@ -1893,6 +1898,7 @@ exit_xfs_fs(void)
{
vfs_exitquota();
unregister_filesystem(&xfs_fs_type);
+ xfs_inode_shrinker_destroy();
xfs_sysctl_unregister();
xfs_cleanup_procfs();
xfs_buf_terminate();
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index 05cd85317f6f..a427c638d909 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -95,7 +95,8 @@ xfs_inode_ag_walk(
struct xfs_perag *pag, int flags),
int flags,
int tag,
- int exclusive)
+ int exclusive,
+ int *nr_to_scan)
{
uint32_t first_index;
int last_error = 0;
@@ -134,7 +135,7 @@ restart:
if (error == EFSCORRUPTED)
break;
- } while (1);
+ } while ((*nr_to_scan)--);
if (skipped) {
delay(1);
@@ -150,12 +151,15 @@ xfs_inode_ag_iterator(
struct xfs_perag *pag, int flags),
int flags,
int tag,
- int exclusive)
+ int exclusive,
+ int *nr_to_scan)
{
int error = 0;
int last_error = 0;
xfs_agnumber_t ag;
+ int nr;
+ nr = nr_to_scan ? *nr_to_scan : INT_MAX;
for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) {
struct xfs_perag *pag;
@@ -165,14 +169,18 @@ xfs_inode_ag_iterator(
continue;
}
error = xfs_inode_ag_walk(mp, pag, execute, flags, tag,
- exclusive);
+ exclusive, &nr);
xfs_perag_put(pag);
if (error) {
last_error = error;
if (error == EFSCORRUPTED)
break;
}
+ if (nr <= 0)
+ break;
}
+ if (nr_to_scan)
+ *nr_to_scan = nr;
return XFS_ERROR(last_error);
}
@@ -291,7 +299,7 @@ xfs_sync_data(
ASSERT((flags & ~(SYNC_TRYLOCK|SYNC_WAIT)) == 0);
error = xfs_inode_ag_iterator(mp, xfs_sync_inode_data, flags,
- XFS_ICI_NO_TAG, 0);
+ XFS_ICI_NO_TAG, 0, NULL);
if (error)
return XFS_ERROR(error);
@@ -310,7 +318,7 @@ xfs_sync_attr(
ASSERT((flags & ~SYNC_WAIT) == 0);
return xfs_inode_ag_iterator(mp, xfs_sync_inode_attr, flags,
- XFS_ICI_NO_TAG, 0);
+ XFS_ICI_NO_TAG, 0, NULL);
}
STATIC int
@@ -673,6 +681,7 @@ __xfs_inode_set_reclaim_tag(
radix_tree_tag_set(&pag->pag_ici_root,
XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino),
XFS_ICI_RECLAIM_TAG);
+ pag->pag_ici_reclaimable++;
}
/*
@@ -705,6 +714,7 @@ __xfs_inode_clear_reclaim_tag(
{
radix_tree_tag_clear(&pag->pag_ici_root,
XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
+ pag->pag_ici_reclaimable--;
}
/*
@@ -820,10 +830,10 @@ xfs_reclaim_inode(
* call into reclaim to find it in a clean state instead of waiting for
* it now. We also don't return errors here - if the error is transient
* then the next reclaim pass will flush the inode, and if the error
- * is permanent then the next sync reclaim will relcaim the inode and
+ * is permanent then the next sync reclaim will reclaim the inode and
* pass on the error.
*/
- if (error && !XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+ if (error && error != EAGAIN && !XFS_FORCED_SHUTDOWN(ip->i_mount)) {
xfs_fs_cmn_err(CE_WARN, ip->i_mount,
"inode 0x%llx background reclaim flush failed with %d",
(long long)ip->i_ino, error);
@@ -854,5 +864,93 @@ xfs_reclaim_inodes(
int mode)
{
return xfs_inode_ag_iterator(mp, xfs_reclaim_inode, mode,
- XFS_ICI_RECLAIM_TAG, 1);
+ XFS_ICI_RECLAIM_TAG, 1, NULL);
+}
+
+/*
+ * Shrinker infrastructure.
+ *
+ * This is all far more complex than it needs to be. It adds a global list of
+ * mounts because the shrinkers can only call a global context. We need to make
+ * the shrinkers pass a context to avoid the need for global state.
+ */
+static LIST_HEAD(xfs_mount_list);
+static struct rw_semaphore xfs_mount_list_lock;
+
+static int
+xfs_reclaim_inode_shrink(
+ int nr_to_scan,
+ gfp_t gfp_mask)
+{
+ struct xfs_mount *mp;
+ struct xfs_perag *pag;
+ xfs_agnumber_t ag;
+ int reclaimable = 0;
+
+ if (nr_to_scan) {
+ if (!(gfp_mask & __GFP_FS))
+ return -1;
+
+ down_read(&xfs_mount_list_lock);
+ list_for_each_entry(mp, &xfs_mount_list, m_mplist) {
+ xfs_inode_ag_iterator(mp, xfs_reclaim_inode, 0,
+ XFS_ICI_RECLAIM_TAG, 1, &nr_to_scan);
+ if (nr_to_scan <= 0)
+ break;
+ }
+ up_read(&xfs_mount_list_lock);
+ }
+
+ down_read(&xfs_mount_list_lock);
+ list_for_each_entry(mp, &xfs_mount_list, m_mplist) {
+ for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) {
+
+ pag = xfs_perag_get(mp, ag);
+ if (!pag->pag_ici_init) {
+ xfs_perag_put(pag);
+ continue;
+ }
+ reclaimable += pag->pag_ici_reclaimable;
+ xfs_perag_put(pag);
+ }
+ }
+ up_read(&xfs_mount_list_lock);
+ return reclaimable;
+}
+
+static struct shrinker xfs_inode_shrinker = {
+ .shrink = xfs_reclaim_inode_shrink,
+ .seeks = DEFAULT_SEEKS,
+};
+
+void __init
+xfs_inode_shrinker_init(void)
+{
+ init_rwsem(&xfs_mount_list_lock);
+ register_shrinker(&xfs_inode_shrinker);
+}
+
+void
+xfs_inode_shrinker_destroy(void)
+{
+ ASSERT(list_empty(&xfs_mount_list));
+ unregister_shrinker(&xfs_inode_shrinker);
+}
+
+void
+xfs_inode_shrinker_register(
+ struct xfs_mount *mp)
+{
+ down_write(&xfs_mount_list_lock);
+ list_add_tail(&mp->m_mplist, &xfs_mount_list);
+ up_write(&xfs_mount_list_lock);
+}
+
+void
+xfs_inode_shrinker_unregister(
+ struct xfs_mount *mp)
+{
+ down_write(&xfs_mount_list_lock);
+ list_del(&mp->m_mplist);
+ up_write(&xfs_mount_list_lock);
}
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index d480c346cabb..cdcbaaca9880 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -53,6 +53,11 @@ void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
int xfs_sync_inode_valid(struct xfs_inode *ip, struct xfs_perag *pag);
int xfs_inode_ag_iterator(struct xfs_mount *mp,
int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags),
- int flags, int tag, int write_lock);
+ int flags, int tag, int write_lock, int *nr_to_scan);
+
+void xfs_inode_shrinker_init(void);
+void xfs_inode_shrinker_destroy(void);
+void xfs_inode_shrinker_register(struct xfs_mount *mp);
+void xfs_inode_shrinker_unregister(struct xfs_mount *mp);
#endif
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 5d0ee8d492db..50bee07d6b0e 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -891,7 +891,8 @@ xfs_qm_dqrele_all_inodes(
uint flags)
{
ASSERT(mp->m_quotainfo);
- xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, XFS_ICI_NO_TAG, 0);
+ xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags,
+ XFS_ICI_NO_TAG, 0, NULL);
}
/*------------------------------------------------------------------------*/
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index b1a5a1ff88ea..abb8222b88c9 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -223,6 +223,7 @@ typedef struct xfs_perag {
int pag_ici_init; /* incore inode cache initialised */
rwlock_t pag_ici_lock; /* incore inode lock */
struct radix_tree_root pag_ici_root; /* incore inode cache root */
+ int pag_ici_reclaimable; /* reclaimable inodes */
#endif
int pagb_count; /* pagb slots in use */
xfs_perag_busy_t pagb_list[XFS_PAGB_NUM_SLOTS]; /* unstable blocks */
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index cd27c9d6c71f..5bba29a07812 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -177,16 +177,26 @@ xfs_swap_extents_check_format(
XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) > tip->i_df.if_ext_max)
return EINVAL;
- /* Check root block of temp in btree form to max in target */
+ /*
+ * If we are in a btree format, check that the temp root block will fit
+ * in the target and that it has enough extents to be in btree format
+ * in the target.
+ *
+ * Note that we have to be careful to allow btree->extent conversions
+ * (a common defrag case) which will occur when the temp inode is in
+ * extent format...
+ */
if (tip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
- XFS_IFORK_BOFF(ip) &&
- tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip))
+ ((XFS_IFORK_BOFF(ip) &&
+ tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip)) ||
+ XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK) <= ip->i_df.if_ext_max))
return EINVAL;
- /* Check root block of target in btree form to max in temp */
+ /* Reciprocal target->temp btree format checks */
if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE &&
- XFS_IFORK_BOFF(tip) &&
- ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip))
+ ((XFS_IFORK_BOFF(tip) &&
+ ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip)) ||
+ XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) <= tip->i_df.if_ext_max))
return EINVAL;
return 0;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index e8fba92d7cd9..2be019136287 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -745,9 +745,16 @@ xfs_log_move_tail(xfs_mount_t *mp,
/*
* Determine if we have a transaction that has gone to disk
- * that needs to be covered. Log activity needs to be idle (no AIL and
- * nothing in the iclogs). And, we need to be in the right state indicating
- * something has gone out.
+ * that needs to be covered. To begin the transition to the idle state
+ * firstly the log needs to be idle (no AIL and nothing in the iclogs).
+ * If we are then in a state where covering is needed, the caller is informed
+ * that dummy transactions are required to move the log into the idle state.
+ *
+ * Because this is called as part of the sync process, we should also indicate
+ * that dummy transactions should be issued in anything but the covered or
+ * idle states. This ensures that the log tail is accurately reflected in
+ * the log at the end of the sync, hence if a crash occurrs avoids replay
+ * of transactions where the metadata is already on disk.
*/
int
xfs_log_need_covered(xfs_mount_t *mp)
@@ -759,17 +766,24 @@ xfs_log_need_covered(xfs_mount_t *mp)
return 0;
spin_lock(&log->l_icloglock);
- if (((log->l_covered_state == XLOG_STATE_COVER_NEED) ||
- (log->l_covered_state == XLOG_STATE_COVER_NEED2))
- && !xfs_trans_ail_tail(log->l_ailp)
- && xlog_iclogs_empty(log)) {
- if (log->l_covered_state == XLOG_STATE_COVER_NEED)
- log->l_covered_state = XLOG_STATE_COVER_DONE;
- else {
- ASSERT(log->l_covered_state == XLOG_STATE_COVER_NEED2);
- log->l_covered_state = XLOG_STATE_COVER_DONE2;
+ switch (log->l_covered_state) {
+ case XLOG_STATE_COVER_DONE:
+ case XLOG_STATE_COVER_DONE2:
+ case XLOG_STATE_COVER_IDLE:
+ break;
+ case XLOG_STATE_COVER_NEED:
+ case XLOG_STATE_COVER_NEED2:
+ if (!xfs_trans_ail_tail(log->l_ailp) &&
+ xlog_iclogs_empty(log)) {
+ if (log->l_covered_state == XLOG_STATE_COVER_NEED)
+ log->l_covered_state = XLOG_STATE_COVER_DONE;
+ else
+ log->l_covered_state = XLOG_STATE_COVER_DONE2;
}
+ /* FALLTHRU */
+ default:
needed = 1;
+ break;
}
spin_unlock(&log->l_icloglock);
return needed;
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 4fa0bc7b983e..9ff48a16a7ee 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -259,6 +259,7 @@ typedef struct xfs_mount {
wait_queue_head_t m_wait_single_sync_task;
__int64_t m_update_flags; /* sb flags we need to update
on the next remount,rw */
+ struct list_head m_mplist; /* inode shrinker mount list */
} xfs_mount_t;
/*