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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-17 15:04:38 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-17 15:04:38 +0200
commit54e514b91b95d6441c12a7955addfb9f9d2afc65 (patch)
tree8b73d901bd2a6ec5a31f34a8954e5ea92216dd6c /fs
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vir... (diff)
parentproc: show locks in /proc/pid/fdinfo/X (diff)
downloadlinux-54e514b91b95d6441c12a7955addfb9f9d2afc65.tar.xz
linux-54e514b91b95d6441c12a7955addfb9f9d2afc65.zip
Merge branch 'akpm' (patches from Andrew)
Merge third patchbomb from Andrew Morton: - various misc things - a couple of lib/ optimisations - provide DIV_ROUND_CLOSEST_ULL() - checkpatch updates - rtc tree - befs, nilfs2, hfs, hfsplus, fatfs, adfs, affs, bfs - ptrace fixes - fork() fixes - seccomp cleanups - more mmap_sem hold time reductions from Davidlohr * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (138 commits) proc: show locks in /proc/pid/fdinfo/X docs: add missing and new /proc/PID/status file entries, fix typos drivers/rtc/rtc-at91rm9200.c: make IO endian agnostic Documentation/spi/spidev_test.c: fix warning drivers/rtc/rtc-s5m.c: allow usage on device type different than main MFD type .gitignore: ignore *.tar MAINTAINERS: add Mediatek SoC mailing list tomoyo: reduce mmap_sem hold for mm->exe_file powerpc/oprofile: reduce mmap_sem hold for exe_file oprofile: reduce mmap_sem hold for mm->exe_file mips: ip32: add platform data hooks to use DS1685 driver lib/Kconfig: fix up HAVE_ARCH_BITREVERSE help text x86: switch to using asm-generic for seccomp.h sparc: switch to using asm-generic for seccomp.h powerpc: switch to using asm-generic for seccomp.h parisc: switch to using asm-generic for seccomp.h mips: switch to using asm-generic for seccomp.h microblaze: use asm-generic for seccomp.h arm: use asm-generic for seccomp.h seccomp: allow COMPAT sigreturn overrides ...
Diffstat (limited to 'fs')
-rw-r--r--fs/adfs/dir_fplus.c1
-rw-r--r--fs/adfs/super.c20
-rw-r--r--fs/affs/affs.h28
-rw-r--r--fs/affs/amigaffs.c3
-rw-r--r--fs/affs/file.c2
-rw-r--r--fs/affs/inode.c32
-rw-r--r--fs/affs/namei.c6
-rw-r--r--fs/affs/super.c43
-rw-r--r--fs/befs/befs.h22
-rw-r--r--fs/befs/datastream.c4
-rw-r--r--fs/befs/io.c2
-rw-r--r--fs/befs/linuxvfs.c16
-rw-r--r--fs/befs/super.c4
-rw-r--r--fs/bfs/dir.c4
-rw-r--r--fs/binfmt_misc.c30
-rw-r--r--fs/exec.c12
-rw-r--r--fs/fat/cache.c2
-rw-r--r--fs/fat/dir.c4
-rw-r--r--fs/fat/fat.h5
-rw-r--r--fs/fat/fatent.c3
-rw-r--r--fs/fat/file.c4
-rw-r--r--fs/fat/inode.c13
-rw-r--r--fs/fat/misc.c4
-rw-r--r--fs/fat/namei_msdos.c2
-rw-r--r--fs/fat/namei_vfat.c2
-rw-r--r--fs/file.c3
-rw-r--r--fs/hfs/dir.c4
-rw-r--r--fs/hfsplus/bfind.c4
-rw-r--r--fs/hfsplus/catalog.c3
-rw-r--r--fs/hfsplus/dir.c4
-rw-r--r--fs/hfsplus/inode.c6
-rw-r--r--fs/hfsplus/ioctl.c12
-rw-r--r--fs/hfsplus/xattr.c86
-rw-r--r--fs/hfsplus/xattr.h22
-rw-r--r--fs/hfsplus/xattr_security.c38
-rw-r--r--fs/hfsplus/xattr_trusted.c37
-rw-r--r--fs/hfsplus/xattr_user.c35
-rw-r--r--fs/locks.c38
-rw-r--r--fs/nilfs2/alloc.c5
-rw-r--r--fs/nilfs2/bmap.c48
-rw-r--r--fs/nilfs2/bmap.h13
-rw-r--r--fs/nilfs2/btree.c63
-rw-r--r--fs/nilfs2/cpfile.c58
-rw-r--r--fs/nilfs2/direct.c17
-rw-r--r--fs/nilfs2/inode.c25
-rw-r--r--fs/nilfs2/mdt.c54
-rw-r--r--fs/nilfs2/mdt.h10
-rw-r--r--fs/nilfs2/page.c24
-rw-r--r--fs/nilfs2/segment.c17
-rw-r--r--fs/nilfs2/super.c2
-rw-r--r--fs/proc/fd.c27
51 files changed, 561 insertions, 362 deletions
diff --git a/fs/adfs/dir_fplus.c b/fs/adfs/dir_fplus.c
index f2ba88ab4aed..82d14cdf70f9 100644
--- a/fs/adfs/dir_fplus.c
+++ b/fs/adfs/dir_fplus.c
@@ -61,6 +61,7 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
kcalloc(size, sizeof(struct buffer_head *),
GFP_KERNEL);
if (!bh_fplus) {
+ ret = -ENOMEM;
adfs_error(sb, "not enough memory for"
" dir object %X (%d blocks)", id, size);
goto out;
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index 9852bdf34d76..a19c31d3f369 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -316,7 +316,7 @@ static struct adfs_discmap *adfs_read_map(struct super_block *sb, struct adfs_di
dm = kmalloc(nzones * sizeof(*dm), GFP_KERNEL);
if (dm == NULL) {
adfs_error(sb, "not enough memory");
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
for (zone = 0; zone < nzones; zone++, map_addr++) {
@@ -349,7 +349,7 @@ error_free:
brelse(dm[zone].dm_bh);
kfree(dm);
- return NULL;
+ return ERR_PTR(-EIO);
}
static inline unsigned long adfs_discsize(struct adfs_discrecord *dr, int block_bits)
@@ -370,6 +370,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
unsigned char *b_data;
struct adfs_sb_info *asb;
struct inode *root;
+ int ret = -EINVAL;
sb->s_flags |= MS_NODIRATIME;
@@ -391,6 +392,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
sb_set_blocksize(sb, BLOCK_SIZE);
if (!(bh = sb_bread(sb, ADFS_DISCRECORD / BLOCK_SIZE))) {
adfs_error(sb, "unable to read superblock");
+ ret = -EIO;
goto error;
}
@@ -400,6 +402,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
if (!silent)
printk("VFS: Can't find an adfs filesystem on dev "
"%s.\n", sb->s_id);
+ ret = -EINVAL;
goto error_free_bh;
}
@@ -412,6 +415,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
if (!silent)
printk("VPS: Can't find an adfs filesystem on dev "
"%s.\n", sb->s_id);
+ ret = -EINVAL;
goto error_free_bh;
}
@@ -421,11 +425,13 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
if (!bh) {
adfs_error(sb, "couldn't read superblock on "
"2nd try.");
+ ret = -EIO;
goto error;
}
b_data = bh->b_data + (ADFS_DISCRECORD % sb->s_blocksize);
if (adfs_checkbblk(b_data)) {
adfs_error(sb, "disc record mismatch, very weird!");
+ ret = -EINVAL;
goto error_free_bh;
}
dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
@@ -433,6 +439,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
if (!silent)
printk(KERN_ERR "VFS: Unsupported blocksize on dev "
"%s.\n", sb->s_id);
+ ret = -EINVAL;
goto error;
}
@@ -447,10 +454,12 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
asb->s_size = adfs_discsize(dr, sb->s_blocksize_bits);
asb->s_version = dr->format_version;
asb->s_log2sharesize = dr->log2sharesize;
-
+
asb->s_map = adfs_read_map(sb, dr);
- if (!asb->s_map)
+ if (IS_ERR(asb->s_map)) {
+ ret = PTR_ERR(asb->s_map);
goto error_free_bh;
+ }
brelse(bh);
@@ -499,6 +508,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
brelse(asb->s_map[i].dm_bh);
kfree(asb->s_map);
adfs_error(sb, "get root inode failed\n");
+ ret = -EIO;
goto error;
}
return 0;
@@ -508,7 +518,7 @@ error_free_bh:
error:
sb->s_fs_info = NULL;
kfree(asb);
- return -EINVAL;
+ return ret;
}
static struct dentry *adfs_mount(struct file_system_type *fs_type,
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index c8764bd7497d..cffe8370fb44 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -106,18 +106,22 @@ struct affs_sb_info {
spinlock_t work_lock; /* protects sb_work and work_queued */
};
-#define SF_INTL 0x0001 /* International filesystem. */
-#define SF_BM_VALID 0x0002 /* Bitmap is valid. */
-#define SF_IMMUTABLE 0x0004 /* Protection bits cannot be changed */
-#define SF_QUIET 0x0008 /* chmod errors will be not reported */
-#define SF_SETUID 0x0010 /* Ignore Amiga uid */
-#define SF_SETGID 0x0020 /* Ignore Amiga gid */
-#define SF_SETMODE 0x0040 /* Ignore Amiga protection bits */
-#define SF_MUFS 0x0100 /* Use MUFS uid/gid mapping */
-#define SF_OFS 0x0200 /* Old filesystem */
-#define SF_PREFIX 0x0400 /* Buffer for prefix is allocated */
-#define SF_VERBOSE 0x0800 /* Talk about fs when mounting */
-#define SF_NO_TRUNCATE 0x1000 /* Don't truncate filenames */
+#define AFFS_MOUNT_SF_INTL 0x0001 /* International filesystem. */
+#define AFFS_MOUNT_SF_BM_VALID 0x0002 /* Bitmap is valid. */
+#define AFFS_MOUNT_SF_IMMUTABLE 0x0004 /* Protection bits cannot be changed */
+#define AFFS_MOUNT_SF_QUIET 0x0008 /* chmod errors will be not reported */
+#define AFFS_MOUNT_SF_SETUID 0x0010 /* Ignore Amiga uid */
+#define AFFS_MOUNT_SF_SETGID 0x0020 /* Ignore Amiga gid */
+#define AFFS_MOUNT_SF_SETMODE 0x0040 /* Ignore Amiga protection bits */
+#define AFFS_MOUNT_SF_MUFS 0x0100 /* Use MUFS uid/gid mapping */
+#define AFFS_MOUNT_SF_OFS 0x0200 /* Old filesystem */
+#define AFFS_MOUNT_SF_PREFIX 0x0400 /* Buffer for prefix is allocated */
+#define AFFS_MOUNT_SF_VERBOSE 0x0800 /* Talk about fs when mounting */
+#define AFFS_MOUNT_SF_NO_TRUNCATE 0x1000 /* Don't truncate filenames */
+
+#define affs_clear_opt(o, opt) (o &= ~AFFS_MOUNT_##opt)
+#define affs_set_opt(o, opt) (o |= AFFS_MOUNT_##opt)
+#define affs_test_opt(o, opt) ((o) & AFFS_MOUNT_##opt)
/* short cut to get to the affs specific sb data */
static inline struct affs_sb_info *AFFS_SB(struct super_block *sb)
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index 388da1ea815d..5022ac96aa40 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -472,7 +472,8 @@ bool
affs_nofilenametruncate(const struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- return AFFS_SB(inode->i_sb)->s_flags & SF_NO_TRUNCATE;
+
+ return affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_NO_TRUNCATE);
}
diff --git a/fs/affs/file.c b/fs/affs/file.c
index dcf27951781c..659c579c4588 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -914,7 +914,7 @@ affs_truncate(struct inode *inode)
if (inode->i_size) {
AFFS_I(inode)->i_blkcnt = last_blk + 1;
AFFS_I(inode)->i_extcnt = ext + 1;
- if (AFFS_SB(sb)->s_flags & SF_OFS) {
+ if (affs_test_opt(AFFS_SB(sb)->s_flags, SF_OFS)) {
struct buffer_head *bh = affs_bread_ino(inode, last_blk, 0);
u32 tmp;
if (IS_ERR(bh)) {
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index 6f34510449e8..9628003ccd2f 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -66,23 +66,23 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
AFFS_I(inode)->i_lastalloc = 0;
AFFS_I(inode)->i_pa_cnt = 0;
- if (sbi->s_flags & SF_SETMODE)
+ if (affs_test_opt(sbi->s_flags, SF_SETMODE))
inode->i_mode = sbi->s_mode;
else
inode->i_mode = prot_to_mode(prot);
id = be16_to_cpu(tail->uid);
- if (id == 0 || sbi->s_flags & SF_SETUID)
+ if (id == 0 || affs_test_opt(sbi->s_flags, SF_SETUID))
inode->i_uid = sbi->s_uid;
- else if (id == 0xFFFF && sbi->s_flags & SF_MUFS)
+ else if (id == 0xFFFF && affs_test_opt(sbi->s_flags, SF_MUFS))
i_uid_write(inode, 0);
else
i_uid_write(inode, id);
id = be16_to_cpu(tail->gid);
- if (id == 0 || sbi->s_flags & SF_SETGID)
+ if (id == 0 || affs_test_opt(sbi->s_flags, SF_SETGID))
inode->i_gid = sbi->s_gid;
- else if (id == 0xFFFF && sbi->s_flags & SF_MUFS)
+ else if (id == 0xFFFF && affs_test_opt(sbi->s_flags, SF_MUFS))
i_gid_write(inode, 0);
else
i_gid_write(inode, id);
@@ -94,7 +94,7 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
/* fall through */
case ST_USERDIR:
if (be32_to_cpu(tail->stype) == ST_USERDIR ||
- sbi->s_flags & SF_SETMODE) {
+ affs_test_opt(sbi->s_flags, SF_SETMODE)) {
if (inode->i_mode & S_IRUSR)
inode->i_mode |= S_IXUSR;
if (inode->i_mode & S_IRGRP)
@@ -133,7 +133,8 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino)
}
if (tail->link_chain)
set_nlink(inode, 2);
- inode->i_mapping->a_ops = (sbi->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
+ inode->i_mapping->a_ops = affs_test_opt(sbi->s_flags, SF_OFS) ?
+ &affs_aops_ofs : &affs_aops;
inode->i_op = &affs_file_inode_operations;
inode->i_fop = &affs_file_operations;
break;
@@ -190,15 +191,15 @@ affs_write_inode(struct inode *inode, struct writeback_control *wbc)
if (!(inode->i_ino == AFFS_SB(sb)->s_root_block)) {
uid = i_uid_read(inode);
gid = i_gid_read(inode);
- if (AFFS_SB(sb)->s_flags & SF_MUFS) {
+ if (affs_test_opt(AFFS_SB(sb)->s_flags, SF_MUFS)) {
if (uid == 0 || uid == 0xFFFF)
uid = uid ^ ~0;
if (gid == 0 || gid == 0xFFFF)
gid = gid ^ ~0;
}
- if (!(AFFS_SB(sb)->s_flags & SF_SETUID))
+ if (!affs_test_opt(AFFS_SB(sb)->s_flags, SF_SETUID))
tail->uid = cpu_to_be16(uid);
- if (!(AFFS_SB(sb)->s_flags & SF_SETGID))
+ if (!affs_test_opt(AFFS_SB(sb)->s_flags, SF_SETGID))
tail->gid = cpu_to_be16(gid);
}
}
@@ -221,11 +222,14 @@ affs_notify_change(struct dentry *dentry, struct iattr *attr)
if (error)
goto out;
- if (((attr->ia_valid & ATTR_UID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETUID)) ||
- ((attr->ia_valid & ATTR_GID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETGID)) ||
+ if (((attr->ia_valid & ATTR_UID) &&
+ affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_SETUID)) ||
+ ((attr->ia_valid & ATTR_GID) &&
+ affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_SETGID)) ||
((attr->ia_valid & ATTR_MODE) &&
- (AFFS_SB(inode->i_sb)->s_flags & (SF_SETMODE | SF_IMMUTABLE)))) {
- if (!(AFFS_SB(inode->i_sb)->s_flags & SF_QUIET))
+ (AFFS_SB(inode->i_sb)->s_flags &
+ (AFFS_MOUNT_SF_SETMODE | AFFS_MOUNT_SF_IMMUTABLE)))) {
+ if (!affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_QUIET))
error = -EPERM;
goto out;
}
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index ffb7bd82c2a5..ec8ca0efb960 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -53,7 +53,8 @@ affs_intl_toupper(int ch)
static inline toupper_t
affs_get_toupper(struct super_block *sb)
{
- return AFFS_SB(sb)->s_flags & SF_INTL ? affs_intl_toupper : affs_toupper;
+ return affs_test_opt(AFFS_SB(sb)->s_flags, SF_INTL) ?
+ affs_intl_toupper : affs_toupper;
}
/*
@@ -275,7 +276,8 @@ affs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl)
inode->i_op = &affs_file_inode_operations;
inode->i_fop = &affs_file_operations;
- inode->i_mapping->a_ops = (AFFS_SB(sb)->s_flags & SF_OFS) ? &affs_aops_ofs : &affs_aops;
+ inode->i_mapping->a_ops = affs_test_opt(AFFS_SB(sb)->s_flags, SF_OFS) ?
+ &affs_aops_ofs : &affs_aops;
error = affs_add_entry(dir, inode, dentry, ST_FILE);
if (error) {
clear_nlink(inode);
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 4cf0e9113fb6..3f89c9e05b40 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -227,22 +227,22 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
if (match_octal(&args[0], &option))
return 0;
*mode = option & 0777;
- *mount_opts |= SF_SETMODE;
+ affs_set_opt(*mount_opts, SF_SETMODE);
break;
case Opt_mufs:
- *mount_opts |= SF_MUFS;
+ affs_set_opt(*mount_opts, SF_MUFS);
break;
case Opt_notruncate:
- *mount_opts |= SF_NO_TRUNCATE;
+ affs_set_opt(*mount_opts, SF_NO_TRUNCATE);
break;
case Opt_prefix:
*prefix = match_strdup(&args[0]);
if (!*prefix)
return 0;
- *mount_opts |= SF_PREFIX;
+ affs_set_opt(*mount_opts, SF_PREFIX);
break;
case Opt_protect:
- *mount_opts |= SF_IMMUTABLE;
+ affs_set_opt(*mount_opts, SF_IMMUTABLE);
break;
case Opt_reserved:
if (match_int(&args[0], reserved))
@@ -258,7 +258,7 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
*gid = make_kgid(current_user_ns(), option);
if (!gid_valid(*gid))
return 0;
- *mount_opts |= SF_SETGID;
+ affs_set_opt(*mount_opts, SF_SETGID);
break;
case Opt_setuid:
if (match_int(&args[0], &option))
@@ -266,10 +266,10 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
*uid = make_kuid(current_user_ns(), option);
if (!uid_valid(*uid))
return 0;
- *mount_opts |= SF_SETUID;
+ affs_set_opt(*mount_opts, SF_SETUID);
break;
case Opt_verbose:
- *mount_opts |= SF_VERBOSE;
+ affs_set_opt(*mount_opts, SF_VERBOSE);
break;
case Opt_volume: {
char *vol = match_strdup(&args[0]);
@@ -435,30 +435,31 @@ got_root:
case MUFS_FS:
case MUFS_INTLFFS:
case MUFS_DCFFS:
- sbi->s_flags |= SF_MUFS;
+ affs_set_opt(sbi->s_flags, SF_MUFS);
/* fall thru */
case FS_INTLFFS:
case FS_DCFFS:
- sbi->s_flags |= SF_INTL;
+ affs_set_opt(sbi->s_flags, SF_INTL);
break;
case MUFS_FFS:
- sbi->s_flags |= SF_MUFS;
+ affs_set_opt(sbi->s_flags, SF_MUFS);
break;
case FS_FFS:
break;
case MUFS_OFS:
- sbi->s_flags |= SF_MUFS;
+ affs_set_opt(sbi->s_flags, SF_MUFS);
/* fall thru */
case FS_OFS:
- sbi->s_flags |= SF_OFS;
+ affs_set_opt(sbi->s_flags, SF_OFS);
sb->s_flags |= MS_NOEXEC;
break;
case MUFS_DCOFS:
case MUFS_INTLOFS:
- sbi->s_flags |= SF_MUFS;
+ affs_set_opt(sbi->s_flags, SF_MUFS);
case FS_DCOFS:
case FS_INTLOFS:
- sbi->s_flags |= SF_INTL | SF_OFS;
+ affs_set_opt(sbi->s_flags, SF_INTL);
+ affs_set_opt(sbi->s_flags, SF_OFS);
sb->s_flags |= MS_NOEXEC;
break;
default:
@@ -467,7 +468,7 @@ got_root:
return -EINVAL;
}
- if (mount_flags & SF_VERBOSE) {
+ if (affs_test_opt(mount_flags, SF_VERBOSE)) {
u8 len = AFFS_ROOT_TAIL(sb, root_bh)->disk_name[0];
pr_notice("Mounting volume \"%.*s\": Type=%.3s\\%c, Blocksize=%d\n",
len > 31 ? 31 : len,
@@ -478,7 +479,7 @@ got_root:
sb->s_flags |= MS_NODEV | MS_NOSUID;
sbi->s_data_blksize = sb->s_blocksize;
- if (sbi->s_flags & SF_OFS)
+ if (affs_test_opt(sbi->s_flags, SF_OFS))
sbi->s_data_blksize -= 24;
tmp_flags = sb->s_flags;
@@ -493,7 +494,7 @@ got_root:
if (IS_ERR(root_inode))
return PTR_ERR(root_inode);
- if (AFFS_SB(sb)->s_flags & SF_INTL)
+ if (affs_test_opt(AFFS_SB(sb)->s_flags, SF_INTL))
sb->s_d_op = &affs_intl_dentry_operations;
else
sb->s_d_op = &affs_dentry_operations;
@@ -520,10 +521,14 @@ affs_remount(struct super_block *sb, int *flags, char *data)
int root_block;
unsigned long mount_flags;
int res = 0;
- char *new_opts = kstrdup(data, GFP_KERNEL);
+ char *new_opts;
char volume[32];
char *prefix = NULL;
+ new_opts = kstrdup(data, GFP_KERNEL);
+ if (!new_opts)
+ return -ENOMEM;
+
pr_debug("%s(flags=0x%x,opts=\"%s\")\n", __func__, *flags, data);
sync_filesystem(sb);
diff --git a/fs/befs/befs.h b/fs/befs/befs.h
index 3a7813ab8c95..1fead8d56a98 100644
--- a/fs/befs/befs.h
+++ b/fs/befs/befs.h
@@ -19,16 +19,16 @@ typedef u64 befs_blocknr_t;
* BeFS in memory structures
*/
-typedef struct befs_mount_options {
+struct befs_mount_options {
kgid_t gid;
kuid_t uid;
int use_gid;
int use_uid;
int debug;
char *iocharset;
-} befs_mount_options;
+};
-typedef struct befs_sb_info {
+struct befs_sb_info {
u32 magic1;
u32 block_size;
u32 block_shift;
@@ -52,12 +52,11 @@ typedef struct befs_sb_info {
befs_inode_addr indices;
u32 magic3;
- befs_mount_options mount_opts;
+ struct befs_mount_options mount_opts;
struct nls_table *nls;
+};
-} befs_sb_info;
-
-typedef struct befs_inode_info {
+struct befs_inode_info {
u32 i_flags;
u32 i_type;
@@ -71,8 +70,7 @@ typedef struct befs_inode_info {
} i_data;
struct inode vfs_inode;
-
-} befs_inode_info;
+};
enum befs_err {
BEFS_OK,
@@ -105,13 +103,13 @@ void befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *);
/* Gets a pointer to the private portion of the super_block
* structure from the public part
*/
-static inline befs_sb_info *
+static inline struct befs_sb_info *
BEFS_SB(const struct super_block *super)
{
- return (befs_sb_info *) super->s_fs_info;
+ return (struct befs_sb_info *) super->s_fs_info;
}
-static inline befs_inode_info *
+static inline struct befs_inode_info *
BEFS_I(const struct inode *inode)
{
return list_entry(inode, struct befs_inode_info, vfs_inode);
diff --git a/fs/befs/datastream.c b/fs/befs/datastream.c
index 1e8e0b8d8836..ebd50718659f 100644
--- a/fs/befs/datastream.c
+++ b/fs/befs/datastream.c
@@ -168,7 +168,7 @@ befs_count_blocks(struct super_block * sb, befs_data_stream * ds)
befs_blocknr_t blocks;
befs_blocknr_t datablocks; /* File data blocks */
befs_blocknr_t metablocks; /* FS metadata blocks */
- befs_sb_info *befs_sb = BEFS_SB(sb);
+ struct befs_sb_info *befs_sb = BEFS_SB(sb);
befs_debug(sb, "---> %s", __func__);
@@ -428,7 +428,7 @@ befs_find_brun_dblindirect(struct super_block *sb,
struct buffer_head *indir_block;
befs_block_run indir_run;
befs_disk_inode_addr *iaddr_array = NULL;
- befs_sb_info *befs_sb = BEFS_SB(sb);
+ struct befs_sb_info *befs_sb = BEFS_SB(sb);
befs_blocknr_t indir_start_blk =
data->max_indirect_range >> befs_sb->block_shift;
diff --git a/fs/befs/io.c b/fs/befs/io.c
index 0408a3d601d0..7a5b4ec21c56 100644
--- a/fs/befs/io.c
+++ b/fs/befs/io.c
@@ -28,7 +28,7 @@ befs_bread_iaddr(struct super_block *sb, befs_inode_addr iaddr)
{
struct buffer_head *bh = NULL;
befs_blocknr_t block = 0;
- befs_sb_info *befs_sb = BEFS_SB(sb);
+ struct befs_sb_info *befs_sb = BEFS_SB(sb);
befs_debug(sb, "---> Enter %s "
"[%u, %hu, %hu]", __func__, iaddr.allocation_group,
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index e089f1985fca..16e0a48bfccd 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -51,7 +51,7 @@ static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
static void befs_put_super(struct super_block *);
static int befs_remount(struct super_block *, int *, char *);
static int befs_statfs(struct dentry *, struct kstatfs *);
-static int parse_options(char *, befs_mount_options *);
+static int parse_options(char *, struct befs_mount_options *);
static const struct super_operations befs_sops = {
.alloc_inode = befs_alloc_inode, /* allocate a new inode */
@@ -304,9 +304,8 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
{
struct buffer_head *bh = NULL;
befs_inode *raw_inode = NULL;
-
- befs_sb_info *befs_sb = BEFS_SB(sb);
- befs_inode_info *befs_ino = NULL;
+ struct befs_sb_info *befs_sb = BEFS_SB(sb);
+ struct befs_inode_info *befs_ino = NULL;
struct inode *inode;
long ret = -EIO;
@@ -472,7 +471,7 @@ static void *
befs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct super_block *sb = dentry->d_sb;
- befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+ struct befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
befs_data_stream *data = &befs_ino->i_data.ds;
befs_off_t len = data->size;
char *link;
@@ -502,7 +501,8 @@ befs_follow_link(struct dentry *dentry, struct nameidata *nd)
static void *
befs_fast_follow_link(struct dentry *dentry, struct nameidata *nd)
{
- befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+ struct befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+
nd_set_link(nd, befs_ino->i_data.symlink);
return NULL;
}
@@ -669,7 +669,7 @@ static const match_table_t befs_tokens = {
};
static int
-parse_options(char *options, befs_mount_options * opts)
+parse_options(char *options, struct befs_mount_options *opts)
{
char *p;
substring_t args[MAX_OPT_ARGS];
@@ -769,7 +769,7 @@ static int
befs_fill_super(struct super_block *sb, void *data, int silent)
{
struct buffer_head *bh;
- befs_sb_info *befs_sb;
+ struct befs_sb_info *befs_sb;
befs_super_block *disk_sb;
struct inode *root;
long ret = -EINVAL;
diff --git a/fs/befs/super.c b/fs/befs/super.c
index ca40f828f64d..aeafc4d84278 100644
--- a/fs/befs/super.c
+++ b/fs/befs/super.c
@@ -24,7 +24,7 @@
int
befs_load_sb(struct super_block *sb, befs_super_block * disk_sb)
{
- befs_sb_info *befs_sb = BEFS_SB(sb);
+ struct befs_sb_info *befs_sb = BEFS_SB(sb);
/* Check the byte order of the filesystem */
if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE)
@@ -59,7 +59,7 @@ befs_load_sb(struct super_block *sb, befs_super_block * disk_sb)
int
befs_check_sb(struct super_block *sb)
{
- befs_sb_info *befs_sb = BEFS_SB(sb);
+ struct befs_sb_info *befs_sb = BEFS_SB(sb);
/* Check magic headers of super block */
if ((befs_sb->magic1 != BEFS_SUPER_MAGIC1)
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 08063ae0a17c..7a8182770649 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -86,7 +86,7 @@ static int bfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
inode = new_inode(s);
if (!inode)
- return -ENOSPC;
+ return -ENOMEM;
mutex_lock(&info->bfs_lock);
ino = find_first_zero_bit(info->si_imap, info->si_lasti + 1);
if (ino > info->si_lasti) {
@@ -293,7 +293,7 @@ static int bfs_add_entry(struct inode *dir, const unsigned char *name,
for (block = sblock; block <= eblock; block++) {
bh = sb_bread(dir->i_sb, block);
if (!bh)
- return -ENOSPC;
+ return -EIO;
for (off = 0; off < BFS_BSIZE; off += BFS_DIRENT_SIZE) {
de = (struct bfs_dirent *)(bh->b_data + off);
if (!de->ino) {
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 97aff2879cda..9dcb05409ba7 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -9,6 +9,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
@@ -521,9 +522,8 @@ static int parse_command(const char __user *buffer, size_t count)
static void entry_status(Node *e, char *page)
{
- char *dp;
- char *status = "disabled";
- const char *flags = "flags: ";
+ char *dp = page;
+ const char *status = "disabled";
if (test_bit(Enabled, &e->flags))
status = "enabled";
@@ -533,12 +533,10 @@ static void entry_status(Node *e, char *page)
return;
}
- sprintf(page, "%s\ninterpreter %s\n", status, e->interpreter);
- dp = page + strlen(page);
+ dp += sprintf(dp, "%s\ninterpreter %s\n", status, e->interpreter);
/* print the special flags */
- sprintf(dp, "%s", flags);
- dp += strlen(flags);
+ dp += sprintf(dp, "flags: ");
if (e->flags & MISC_FMT_PRESERVE_ARGV0)
*dp++ = 'P';
if (e->flags & MISC_FMT_OPEN_BINARY)
@@ -550,21 +548,11 @@ static void entry_status(Node *e, char *page)
if (!test_bit(Magic, &e->flags)) {
sprintf(dp, "extension .%s\n", e->magic);
} else {
- int i;
-
- sprintf(dp, "offset %i\nmagic ", e->offset);
- dp = page + strlen(page);
- for (i = 0; i < e->size; i++) {
- sprintf(dp, "%02x", 0xff & (int) (e->magic[i]));
- dp += 2;
- }
+ dp += sprintf(dp, "offset %i\nmagic ", e->offset);
+ dp = bin2hex(dp, e->magic, e->size);
if (e->mask) {
- sprintf(dp, "\nmask ");
- dp += 6;
- for (i = 0; i < e->size; i++) {
- sprintf(dp, "%02x", 0xff & (int) (e->mask[i]));
- dp += 2;
- }
+ dp += sprintf(dp, "\nmask ");
+ dp = bin2hex(dp, e->mask, e->size);
}
*dp++ = '\n';
*dp = '\0';
diff --git a/fs/exec.c b/fs/exec.c
index c7f9b733406d..02bfd980a40c 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -926,10 +926,14 @@ static int de_thread(struct task_struct *tsk)
if (!thread_group_leader(tsk)) {
struct task_struct *leader = tsk->group_leader;
- sig->notify_count = -1; /* for exit_notify() */
for (;;) {
threadgroup_change_begin(tsk);
write_lock_irq(&tasklist_lock);
+ /*
+ * Do this under tasklist_lock to ensure that
+ * exit_notify() can't miss ->group_exit_task
+ */
+ sig->notify_count = -1;
if (likely(leader->exit_state))
break;
__set_current_state(TASK_KILLABLE);
@@ -1078,7 +1082,13 @@ int flush_old_exec(struct linux_binprm * bprm)
if (retval)
goto out;
+ /*
+ * Must be called _before_ exec_mmap() as bprm->mm is
+ * not visibile until then. This also enables the update
+ * to be lockless.
+ */
set_mm_exe_file(bprm->mm, bprm->file);
+
/*
* Release all of the old mmap stuff
*/
diff --git a/fs/fat/cache.c b/fs/fat/cache.c
index 91ad9e1c9441..93fc62232ec2 100644
--- a/fs/fat/cache.c
+++ b/fs/fat/cache.c
@@ -8,9 +8,7 @@
* May 1999. AV. Fixed the bogosity with FAT32 (read "FAT28"). Fscking lusers.
*/
-#include <linux/fs.h>
#include <linux/slab.h>
-#include <linux/buffer_head.h>
#include "fat.h"
/* this must be > 0. */
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index c5d6bb939d19..4afc4d9d2e41 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -13,13 +13,9 @@
* Short name translation 1999, 2001 by Wolfram Pienkoss <wp@bszh.de>
*/
-#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/buffer_head.h>
#include <linux/compat.h>
#include <linux/uaccess.h>
-#include <linux/kernel.h>
#include "fat.h"
/*
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 64e295e8ff38..be5e15323bab 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -2,11 +2,8 @@
#define _FAT_H
#include <linux/buffer_head.h>
-#include <linux/string.h>
#include <linux/nls.h>
-#include <linux/fs.h>
#include <linux/hash.h>
-#include <linux/mutex.h>
#include <linux/ratelimit.h>
#include <linux/msdos_fs.h>
@@ -66,7 +63,7 @@ struct msdos_sb_info {
unsigned short sec_per_clus; /* sectors/cluster */
unsigned short cluster_bits; /* log2(cluster_size) */
unsigned int cluster_size; /* cluster size */
- unsigned char fats, fat_bits; /* number of FATs, FAT bits (12 or 16) */
+ unsigned char fats, fat_bits; /* number of FATs, FAT bits (12,16 or 32) */
unsigned short fat_start;
unsigned long fat_length; /* FAT start & length (sec.) */
unsigned long dir_start;
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 260705c58062..8226557130a2 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -3,9 +3,6 @@
* Released under GPL v2.
*/
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/msdos_fs.h>
#include <linux/blkdev.h>
#include "fat.h"
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 1e98d333879f..cf50d93565a2 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -10,10 +10,6 @@
#include <linux/module.h>
#include <linux/compat.h>
#include <linux/mount.h>
-#include <linux/time.h>
-#include <linux/buffer_head.h>
-#include <linux/writeback.h>
-#include <linux/backing-dev.h>
#include <linux/blkdev.h>
#include <linux/fsnotify.h>
#include <linux/security.h>
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 41b729933638..c06774658345 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -11,20 +11,12 @@
*/
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/time.h>
-#include <linux/slab.h>
-#include <linux/seq_file.h>
#include <linux/pagemap.h>
#include <linux/mpage.h>
-#include <linux/buffer_head.h>
-#include <linux/mount.h>
#include <linux/vfs.h>
+#include <linux/seq_file.h>
#include <linux/parser.h>
#include <linux/uio.h>
-#include <linux/writeback.h>
-#include <linux/log2.h>
-#include <linux/hash.h>
#include <linux/blkdev.h>
#include <asm/unaligned.h>
#include "fat.h"
@@ -1278,8 +1270,7 @@ out:
static int fat_read_root(struct inode *inode)
{
- struct super_block *sb = inode->i_sb;
- struct msdos_sb_info *sbi = MSDOS_SB(sb);
+ struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
int error;
MSDOS_I(inode)->i_pos = MSDOS_ROOT_INO;
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index d8da2d2e30ae..c4589e981760 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -6,10 +6,6 @@
* and date_dos2unix for date==0 by Igor Zhbanov(bsg@uniyar.ac.ru)
*/
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/time.h>
#include "fat.h"
/*
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index a783b0e1272a..cc6a8541b668 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -7,8 +7,6 @@
*/
#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/buffer_head.h>
#include "fat.h"
/* Characters that are undesirable in an MS-DOS file name */
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index b8b92c2f9683..7e0974eebd8e 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -16,10 +16,8 @@
*/
#include <linux/module.h>
-#include <linux/jiffies.h>
#include <linux/ctype.h>
#include <linux/slab.h>
-#include <linux/buffer_head.h>
#include <linux/namei.h>
#include "fat.h"
diff --git a/fs/file.c b/fs/file.c
index ee738ea028fa..93c5f89c248b 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -638,8 +638,7 @@ static struct file *__fget(unsigned int fd, fmode_t mask)
file = fcheck_files(files, fd);
if (file) {
/* File object ref couldn't be taken */
- if ((file->f_mode & mask) ||
- !atomic_long_inc_not_zero(&file->f_count))
+ if ((file->f_mode & mask) || !get_file_rcu(file))
file = NULL;
}
rcu_read_unlock();
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 145566851e7a..36d1a6ae7655 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -197,7 +197,7 @@ static int hfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
inode = hfs_new_inode(dir, &dentry->d_name, mode);
if (!inode)
- return -ENOSPC;
+ return -ENOMEM;
res = hfs_cat_create(inode->i_ino, dir, &dentry->d_name, inode);
if (res) {
@@ -226,7 +226,7 @@ static int hfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
inode = hfs_new_inode(dir, &dentry->d_name, S_IFDIR | mode);
if (!inode)
- return -ENOSPC;
+ return -ENOMEM;
res = hfs_cat_create(inode->i_ino, dir, &dentry->d_name, inode);
if (res) {
diff --git a/fs/hfsplus/bfind.c b/fs/hfsplus/bfind.c
index c1422d91cd36..528e38b5af7f 100644
--- a/fs/hfsplus/bfind.c
+++ b/fs/hfsplus/bfind.c
@@ -118,9 +118,7 @@ int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd,
int b, e;
int res;
- if (!rec_found)
- BUG();
-
+ BUG_ON(!rec_found);
b = 0;
e = bnode->num_recs - 1;
res = -ENOENT;
diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c
index 7892e6fddb66..022974ab6e3c 100644
--- a/fs/hfsplus/catalog.c
+++ b/fs/hfsplus/catalog.c
@@ -350,10 +350,11 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
&fd.search_key->cat.name.unicode,
off + 2, len);
fd.search_key->key_len = cpu_to_be16(6 + len);
- } else
+ } else {
err = hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
if (unlikely(err))
goto out;
+ }
err = hfs_brec_find(&fd, hfs_find_rec_by_key);
if (err)
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index f0235c1640af..3074609befc3 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -434,7 +434,7 @@ static int hfsplus_symlink(struct inode *dir, struct dentry *dentry,
{
struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
struct inode *inode;
- int res = -ENOSPC;
+ int res = -ENOMEM;
mutex_lock(&sbi->vh_mutex);
inode = hfsplus_new_inode(dir->i_sb, S_IFLNK | S_IRWXUGO);
@@ -476,7 +476,7 @@ static int hfsplus_mknod(struct inode *dir, struct dentry *dentry,
{
struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);
struct inode *inode;
- int res = -ENOSPC;
+ int res = -ENOMEM;
mutex_lock(&sbi->vh_mutex);
inode = hfsplus_new_inode(dir->i_sb, mode);
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index a43811f90935..b0afedbef12b 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -253,6 +253,12 @@ static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
inode_dio_wait(inode);
+ if (attr->ia_size > inode->i_size) {
+ error = generic_cont_expand_simple(inode,
+ attr->ia_size);
+ if (error)
+ return error;
+ }
truncate_setsize(inode, attr->ia_size);
hfsplus_file_truncate(inode);
}
diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c
index d3ff5cc317d7..8e98f5db6ad6 100644
--- a/fs/hfsplus/ioctl.c
+++ b/fs/hfsplus/ioctl.c
@@ -76,7 +76,7 @@ static int hfsplus_ioctl_setflags(struct file *file, int __user *user_flags)
{
struct inode *inode = file_inode(file);
struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
- unsigned int flags;
+ unsigned int flags, new_fl = 0;
int err = 0;
err = mnt_want_write_file(file);
@@ -110,14 +110,12 @@ static int hfsplus_ioctl_setflags(struct file *file, int __user *user_flags)
}
if (flags & FS_IMMUTABLE_FL)
- inode->i_flags |= S_IMMUTABLE;
- else
- inode->i_flags &= ~S_IMMUTABLE;
+ new_fl |= S_IMMUTABLE;
if (flags & FS_APPEND_FL)
- inode->i_flags |= S_APPEND;
- else
- inode->i_flags &= ~S_APPEND;
+ new_fl |= S_APPEND;
+
+ inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND);
if (flags & FS_NODUMP_FL)
hip->userflags |= HFSPLUS_FLG_NODUMP;
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index d98094a9f476..89f262d8fcd8 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -44,7 +44,7 @@ static int strcmp_xattr_acl(const char *name)
return -1;
}
-static inline int is_known_namespace(const char *name)
+static bool is_known_namespace(const char *name)
{
if (strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) &&
strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) &&
@@ -424,6 +424,28 @@ static int copy_name(char *buffer, const char *xattr_name, int name_len)
return len;
}
+int hfsplus_setxattr(struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags,
+ const char *prefix, size_t prefixlen)
+{
+ char *xattr_name;
+ int res;
+
+ if (!strcmp(name, ""))
+ return -EINVAL;
+
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
+ strcpy(xattr_name, prefix);
+ strcpy(xattr_name + prefixlen, name);
+ res = __hfsplus_setxattr(dentry->d_inode, xattr_name, value, size,
+ flags);
+ kfree(xattr_name);
+ return res;
+}
+
static ssize_t hfsplus_getxattr_finder_info(struct inode *inode,
void *value, size_t size)
{
@@ -560,6 +582,30 @@ failed_getxattr_init:
return res;
}
+ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
+ void *value, size_t size,
+ const char *prefix, size_t prefixlen)
+{
+ int res;
+ char *xattr_name;
+
+ if (!strcmp(name, ""))
+ return -EINVAL;
+
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
+
+ strcpy(xattr_name, prefix);
+ strcpy(xattr_name + prefixlen, name);
+
+ res = __hfsplus_getxattr(dentry->d_inode, xattr_name, value, size);
+ kfree(xattr_name);
+ return res;
+
+}
+
static inline int can_list(const char *xattr_name)
{
if (!xattr_name)
@@ -806,9 +852,6 @@ end_removexattr:
static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char *xattr_name;
- int res;
-
if (!strcmp(name, ""))
return -EINVAL;
@@ -818,24 +861,19 @@ static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
- + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
- strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
- res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
- kfree(xattr_name);
- return res;
+ /*
+ * osx is the namespace we use to indicate an unprefixed
+ * attribute on the filesystem (like the ones that OS X
+ * creates), so we pass the name through unmodified (after
+ * ensuring it doesn't conflict with another namespace).
+ */
+ return __hfsplus_getxattr(dentry->d_inode, name, buffer, size);
}
static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char *xattr_name;
- int res;
-
if (!strcmp(name, ""))
return -EINVAL;
@@ -845,16 +883,14 @@ static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
- + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
- strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
- res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
- kfree(xattr_name);
- return res;
+ /*
+ * osx is the namespace we use to indicate an unprefixed
+ * attribute on the filesystem (like the ones that OS X
+ * creates), so we pass the name through unmodified (after
+ * ensuring it doesn't conflict with another namespace).
+ */
+ return __hfsplus_setxattr(dentry->d_inode, name, buffer, size, flags);
}
static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hfsplus/xattr.h b/fs/hfsplus/xattr.h
index 288530cf80b5..f9b0955b3d28 100644
--- a/fs/hfsplus/xattr.h
+++ b/fs/hfsplus/xattr.h
@@ -21,22 +21,16 @@ extern const struct xattr_handler *hfsplus_xattr_handlers[];
int __hfsplus_setxattr(struct inode *inode, const char *name,
const void *value, size_t size, int flags);
-static inline int hfsplus_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags)
-{
- return __hfsplus_setxattr(dentry->d_inode, name, value, size, flags);
-}
+int hfsplus_setxattr(struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags,
+ const char *prefix, size_t prefixlen);
ssize_t __hfsplus_getxattr(struct inode *inode, const char *name,
- void *value, size_t size);
-
-static inline ssize_t hfsplus_getxattr(struct dentry *dentry,
- const char *name,
- void *value,
- size_t size)
-{
- return __hfsplus_getxattr(dentry->d_inode, name, value, size);
-}
+ void *value, size_t size);
+
+ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
+ void *value, size_t size,
+ const char *prefix, size_t prefixlen);
ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size);
diff --git a/fs/hfsplus/xattr_security.c b/fs/hfsplus/xattr_security.c
index 6ec5e107691f..aacff00a9ff9 100644
--- a/fs/hfsplus/xattr_security.c
+++ b/fs/hfsplus/xattr_security.c
@@ -16,43 +16,17 @@
static int hfsplus_security_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char *xattr_name;
- int res;
-
- if (!strcmp(name, ""))
- return -EINVAL;
-
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
- GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_SECURITY_PREFIX);
- strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name);
-
- res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
- kfree(xattr_name);
- return res;
+ return hfsplus_getxattr(dentry, name, buffer, size,
+ XATTR_SECURITY_PREFIX,
+ XATTR_SECURITY_PREFIX_LEN);
}
static int hfsplus_security_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char *xattr_name;
- int res;
-
- if (!strcmp(name, ""))
- return -EINVAL;
-
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
- GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_SECURITY_PREFIX);
- strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name);
-
- res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
- kfree(xattr_name);
- return res;
+ return hfsplus_setxattr(dentry, name, buffer, size, flags,
+ XATTR_SECURITY_PREFIX,
+ XATTR_SECURITY_PREFIX_LEN);
}
static size_t hfsplus_security_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hfsplus/xattr_trusted.c b/fs/hfsplus/xattr_trusted.c
index 3c5f27e4746a..bcf65089b7f7 100644
--- a/fs/hfsplus/xattr_trusted.c
+++ b/fs/hfsplus/xattr_trusted.c
@@ -14,43 +14,16 @@
static int hfsplus_trusted_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char *xattr_name;
- int res;
-
- if (!strcmp(name, ""))
- return -EINVAL;
-
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
- GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_TRUSTED_PREFIX);
- strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name);
-
- res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
- kfree(xattr_name);
- return res;
+ return hfsplus_getxattr(dentry, name, buffer, size,
+ XATTR_TRUSTED_PREFIX,
+ XATTR_TRUSTED_PREFIX_LEN);
}
static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char *xattr_name;
- int res;
-
- if (!strcmp(name, ""))
- return -EINVAL;
-
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
- GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_TRUSTED_PREFIX);
- strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name);
-
- res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
- kfree(xattr_name);
- return res;
+ return hfsplus_setxattr(dentry, name, buffer, size, flags,
+ XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN);
}
static size_t hfsplus_trusted_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c
index 2b625a538b64..5aa0e6dc4a1e 100644
--- a/fs/hfsplus/xattr_user.c
+++ b/fs/hfsplus/xattr_user.c
@@ -14,43 +14,16 @@
static int hfsplus_user_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char *xattr_name;
- int res;
- if (!strcmp(name, ""))
- return -EINVAL;
-
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
- GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_USER_PREFIX);
- strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
-
- res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
- kfree(xattr_name);
- return res;
+ return hfsplus_getxattr(dentry, name, buffer, size,
+ XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
}
static int hfsplus_user_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char *xattr_name;
- int res;
-
- if (!strcmp(name, ""))
- return -EINVAL;
-
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
- GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_USER_PREFIX);
- strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
-
- res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
- kfree(xattr_name);
- return res;
+ return hfsplus_setxattr(dentry, name, buffer, size, flags,
+ XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
}
static size_t hfsplus_user_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/locks.c b/fs/locks.c
index 52b780fb5258..653faabb07f4 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -2590,6 +2590,44 @@ static int locks_show(struct seq_file *f, void *v)
return 0;
}
+static void __show_fd_locks(struct seq_file *f,
+ struct list_head *head, int *id,
+ struct file *filp, struct files_struct *files)
+{
+ struct file_lock *fl;
+
+ list_for_each_entry(fl, head, fl_list) {
+
+ if (filp != fl->fl_file)
+ continue;
+ if (fl->fl_owner != files &&
+ fl->fl_owner != filp)
+ continue;
+
+ (*id)++;
+ seq_puts(f, "lock:\t");
+ lock_get_status(f, fl, *id, "");
+ }
+}
+
+void show_fd_locks(struct seq_file *f,
+ struct file *filp, struct files_struct *files)
+{
+ struct inode *inode = file_inode(filp);
+ struct file_lock_context *ctx;
+ int id = 0;
+
+ ctx = inode->i_flctx;
+ if (!ctx)
+ return;
+
+ spin_lock(&ctx->flc_lock);
+ __show_fd_locks(f, &ctx->flc_flock, &id, filp, files);
+ __show_fd_locks(f, &ctx->flc_posix, &id, filp, files);
+ __show_fd_locks(f, &ctx->flc_lease, &id, filp, files);
+ spin_unlock(&ctx->flc_lock);
+}
+
static void *locks_start(struct seq_file *f, loff_t *pos)
__acquires(&blocked_lock_lock)
{
diff --git a/fs/nilfs2/alloc.c b/fs/nilfs2/alloc.c
index 741fd02e0444..8df0f3b7839b 100644
--- a/fs/nilfs2/alloc.c
+++ b/fs/nilfs2/alloc.c
@@ -405,13 +405,14 @@ nilfs_palloc_rest_groups_in_desc_block(const struct inode *inode,
static int nilfs_palloc_count_desc_blocks(struct inode *inode,
unsigned long *desc_blocks)
{
- unsigned long blknum;
+ __u64 blknum;
int ret;
ret = nilfs_bmap_last_key(NILFS_I(inode)->i_bmap, &blknum);
if (likely(!ret))
*desc_blocks = DIV_ROUND_UP(
- blknum, NILFS_MDT(inode)->mi_blocks_per_desc_block);
+ (unsigned long)blknum,
+ NILFS_MDT(inode)->mi_blocks_per_desc_block);
return ret;
}
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index aadbd0b5e3e8..27f75bcbeb30 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -152,9 +152,7 @@ static int nilfs_bmap_do_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
*
* %-EEXIST - A record associated with @key already exist.
*/
-int nilfs_bmap_insert(struct nilfs_bmap *bmap,
- unsigned long key,
- unsigned long rec)
+int nilfs_bmap_insert(struct nilfs_bmap *bmap, __u64 key, unsigned long rec)
{
int ret;
@@ -191,19 +189,47 @@ static int nilfs_bmap_do_delete(struct nilfs_bmap *bmap, __u64 key)
return bmap->b_ops->bop_delete(bmap, key);
}
-int nilfs_bmap_last_key(struct nilfs_bmap *bmap, unsigned long *key)
+/**
+ * nilfs_bmap_seek_key - seek a valid entry and return its key
+ * @bmap: bmap struct
+ * @start: start key number
+ * @keyp: place to store valid key
+ *
+ * Description: nilfs_bmap_seek_key() seeks a valid key on @bmap
+ * starting from @start, and stores it to @keyp if found.
+ *
+ * Return Value: On success, 0 is returned. On error, one of the following
+ * negative error codes is returned.
+ *
+ * %-EIO - I/O error.
+ *
+ * %-ENOMEM - Insufficient amount of memory available.
+ *
+ * %-ENOENT - No valid entry was found
+ */
+int nilfs_bmap_seek_key(struct nilfs_bmap *bmap, __u64 start, __u64 *keyp)
{
- __u64 lastkey;
int ret;
down_read(&bmap->b_sem);
- ret = bmap->b_ops->bop_last_key(bmap, &lastkey);
+ ret = bmap->b_ops->bop_seek_key(bmap, start, keyp);
+ up_read(&bmap->b_sem);
+
+ if (ret < 0)
+ ret = nilfs_bmap_convert_error(bmap, __func__, ret);
+ return ret;
+}
+
+int nilfs_bmap_last_key(struct nilfs_bmap *bmap, __u64 *keyp)
+{
+ int ret;
+
+ down_read(&bmap->b_sem);
+ ret = bmap->b_ops->bop_last_key(bmap, keyp);
up_read(&bmap->b_sem);
if (ret < 0)
ret = nilfs_bmap_convert_error(bmap, __func__, ret);
- else
- *key = lastkey;
return ret;
}
@@ -224,7 +250,7 @@ int nilfs_bmap_last_key(struct nilfs_bmap *bmap, unsigned long *key)
*
* %-ENOENT - A record associated with @key does not exist.
*/
-int nilfs_bmap_delete(struct nilfs_bmap *bmap, unsigned long key)
+int nilfs_bmap_delete(struct nilfs_bmap *bmap, __u64 key)
{
int ret;
@@ -235,7 +261,7 @@ int nilfs_bmap_delete(struct nilfs_bmap *bmap, unsigned long key)
return nilfs_bmap_convert_error(bmap, __func__, ret);
}
-static int nilfs_bmap_do_truncate(struct nilfs_bmap *bmap, unsigned long key)
+static int nilfs_bmap_do_truncate(struct nilfs_bmap *bmap, __u64 key)
{
__u64 lastkey;
int ret;
@@ -276,7 +302,7 @@ static int nilfs_bmap_do_truncate(struct nilfs_bmap *bmap, unsigned long key)
*
* %-ENOMEM - Insufficient amount of memory available.
*/
-int nilfs_bmap_truncate(struct nilfs_bmap *bmap, unsigned long key)
+int nilfs_bmap_truncate(struct nilfs_bmap *bmap, __u64 key)
{
int ret;
diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index b89e68076adc..bfa817ce40b3 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -76,8 +76,10 @@ struct nilfs_bmap_operations {
union nilfs_binfo *);
int (*bop_mark)(struct nilfs_bmap *, __u64, int);
- /* The following functions are internal use only. */
+ int (*bop_seek_key)(const struct nilfs_bmap *, __u64, __u64 *);
int (*bop_last_key)(const struct nilfs_bmap *, __u64 *);
+
+ /* The following functions are internal use only. */
int (*bop_check_insert)(const struct nilfs_bmap *, __u64);
int (*bop_check_delete)(struct nilfs_bmap *, __u64);
int (*bop_gather_data)(struct nilfs_bmap *, __u64 *, __u64 *, int);
@@ -153,10 +155,11 @@ int nilfs_bmap_test_and_clear_dirty(struct nilfs_bmap *);
int nilfs_bmap_read(struct nilfs_bmap *, struct nilfs_inode *);
void nilfs_bmap_write(struct nilfs_bmap *, struct nilfs_inode *);
int nilfs_bmap_lookup_contig(struct nilfs_bmap *, __u64, __u64 *, unsigned);
-int nilfs_bmap_insert(struct nilfs_bmap *, unsigned long, unsigned long);
-int nilfs_bmap_delete(struct nilfs_bmap *, unsigned long);
-int nilfs_bmap_last_key(struct nilfs_bmap *, unsigned long *);
-int nilfs_bmap_truncate(struct nilfs_bmap *, unsigned long);
+int nilfs_bmap_insert(struct nilfs_bmap *bmap, __u64 key, unsigned long rec);
+int nilfs_bmap_delete(struct nilfs_bmap *bmap, __u64 key);
+int nilfs_bmap_seek_key(struct nilfs_bmap *bmap, __u64 start, __u64 *keyp);
+int nilfs_bmap_last_key(struct nilfs_bmap *bmap, __u64 *keyp);
+int nilfs_bmap_truncate(struct nilfs_bmap *bmap, __u64 key);
void nilfs_bmap_clear(struct nilfs_bmap *);
int nilfs_bmap_propagate(struct nilfs_bmap *, struct buffer_head *);
void nilfs_bmap_lookup_dirty_buffers(struct nilfs_bmap *, struct list_head *);
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index ecdbae19a766..059f37137f9a 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -633,6 +633,44 @@ static int nilfs_btree_do_lookup_last(const struct nilfs_bmap *btree,
return 0;
}
+/**
+ * nilfs_btree_get_next_key - get next valid key from btree path array
+ * @btree: bmap struct of btree
+ * @path: array of nilfs_btree_path struct
+ * @minlevel: start level
+ * @nextkey: place to store the next valid key
+ *
+ * Return Value: If a next key was found, 0 is returned. Otherwise,
+ * -ENOENT is returned.
+ */
+static int nilfs_btree_get_next_key(const struct nilfs_bmap *btree,
+ const struct nilfs_btree_path *path,
+ int minlevel, __u64 *nextkey)
+{
+ struct nilfs_btree_node *node;
+ int maxlevel = nilfs_btree_height(btree) - 1;
+ int index, next_adj, level;
+
+ /* Next index is already set to bp_index for leaf nodes. */
+ next_adj = 0;
+ for (level = minlevel; level <= maxlevel; level++) {
+ if (level == maxlevel)
+ node = nilfs_btree_get_root(btree);
+ else
+ node = nilfs_btree_get_nonroot_node(path, level);
+
+ index = path[level].bp_index + next_adj;
+ if (index < nilfs_btree_node_get_nchildren(node)) {
+ /* Next key is in this node */
+ *nextkey = nilfs_btree_node_get_key(node, index);
+ return 0;
+ }
+ /* For non-leaf nodes, next index is stored at bp_index + 1. */
+ next_adj = 1;
+ }
+ return -ENOENT;
+}
+
static int nilfs_btree_lookup(const struct nilfs_bmap *btree,
__u64 key, int level, __u64 *ptrp)
{
@@ -1563,6 +1601,27 @@ out:
return ret;
}
+static int nilfs_btree_seek_key(const struct nilfs_bmap *btree, __u64 start,
+ __u64 *keyp)
+{
+ struct nilfs_btree_path *path;
+ const int minlevel = NILFS_BTREE_LEVEL_NODE_MIN;
+ int ret;
+
+ path = nilfs_btree_alloc_path();
+ if (!path)
+ return -ENOMEM;
+
+ ret = nilfs_btree_do_lookup(btree, path, start, NULL, minlevel, 0);
+ if (!ret)
+ *keyp = start;
+ else if (ret == -ENOENT)
+ ret = nilfs_btree_get_next_key(btree, path, minlevel, keyp);
+
+ nilfs_btree_free_path(path);
+ return ret;
+}
+
static int nilfs_btree_last_key(const struct nilfs_bmap *btree, __u64 *keyp)
{
struct nilfs_btree_path *path;
@@ -2298,7 +2357,9 @@ static const struct nilfs_bmap_operations nilfs_btree_ops = {
.bop_assign = nilfs_btree_assign,
.bop_mark = nilfs_btree_mark,
+ .bop_seek_key = nilfs_btree_seek_key,
.bop_last_key = nilfs_btree_last_key,
+
.bop_check_insert = NULL,
.bop_check_delete = nilfs_btree_check_delete,
.bop_gather_data = nilfs_btree_gather_data,
@@ -2318,7 +2379,9 @@ static const struct nilfs_bmap_operations nilfs_btree_ops_gc = {
.bop_assign = nilfs_btree_assign_gc,
.bop_mark = NULL,
+ .bop_seek_key = NULL,
.bop_last_key = NULL,
+
.bop_check_insert = NULL,
.bop_check_delete = NULL,
.bop_gather_data = NULL,
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index 0d58075f34e2..b6596cab9e99 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -53,6 +53,13 @@ nilfs_cpfile_get_offset(const struct inode *cpfile, __u64 cno)
return do_div(tcno, nilfs_cpfile_checkpoints_per_block(cpfile));
}
+static __u64 nilfs_cpfile_first_checkpoint_in_block(const struct inode *cpfile,
+ unsigned long blkoff)
+{
+ return (__u64)nilfs_cpfile_checkpoints_per_block(cpfile) * blkoff
+ + 1 - NILFS_MDT(cpfile)->mi_first_entry_offset;
+}
+
static unsigned long
nilfs_cpfile_checkpoints_in_block(const struct inode *cpfile,
__u64 curr,
@@ -146,6 +153,44 @@ static inline int nilfs_cpfile_get_checkpoint_block(struct inode *cpfile,
create, nilfs_cpfile_block_init, bhp);
}
+/**
+ * nilfs_cpfile_find_checkpoint_block - find and get a buffer on cpfile
+ * @cpfile: inode of cpfile
+ * @start_cno: start checkpoint number (inclusive)
+ * @end_cno: end checkpoint number (inclusive)
+ * @cnop: place to store the next checkpoint number
+ * @bhp: place to store a pointer to buffer_head struct
+ *
+ * Return Value: On success, it returns 0. On error, the following negative
+ * error code is returned.
+ *
+ * %-ENOMEM - Insufficient memory available.
+ *
+ * %-EIO - I/O error
+ *
+ * %-ENOENT - no block exists in the range.
+ */
+static int nilfs_cpfile_find_checkpoint_block(struct inode *cpfile,
+ __u64 start_cno, __u64 end_cno,
+ __u64 *cnop,
+ struct buffer_head **bhp)
+{
+ unsigned long start, end, blkoff;
+ int ret;
+
+ if (unlikely(start_cno > end_cno))
+ return -ENOENT;
+
+ start = nilfs_cpfile_get_blkoff(cpfile, start_cno);
+ end = nilfs_cpfile_get_blkoff(cpfile, end_cno);
+
+ ret = nilfs_mdt_find_block(cpfile, start, end, &blkoff, bhp);
+ if (!ret)
+ *cnop = (blkoff == start) ? start_cno :
+ nilfs_cpfile_first_checkpoint_in_block(cpfile, blkoff);
+ return ret;
+}
+
static inline int nilfs_cpfile_delete_checkpoint_block(struct inode *cpfile,
__u64 cno)
{
@@ -403,14 +448,15 @@ static ssize_t nilfs_cpfile_do_get_cpinfo(struct inode *cpfile, __u64 *cnop,
return -ENOENT; /* checkpoint number 0 is invalid */
down_read(&NILFS_MDT(cpfile)->mi_sem);
- for (n = 0; cno < cur_cno && n < nci; cno += ncps) {
- ncps = nilfs_cpfile_checkpoints_in_block(cpfile, cno, cur_cno);
- ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &bh);
+ for (n = 0; n < nci; cno += ncps) {
+ ret = nilfs_cpfile_find_checkpoint_block(
+ cpfile, cno, cur_cno - 1, &cno, &bh);
if (ret < 0) {
- if (ret != -ENOENT)
- goto out;
- continue; /* skip hole */
+ if (likely(ret == -ENOENT))
+ break;
+ goto out;
}
+ ncps = nilfs_cpfile_checkpoints_in_block(cpfile, cno, cur_cno);
kaddr = kmap_atomic(bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c
index 82f4865e86dd..ebf89fd8ac1a 100644
--- a/fs/nilfs2/direct.c
+++ b/fs/nilfs2/direct.c
@@ -173,6 +173,21 @@ static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key)
return ret;
}
+static int nilfs_direct_seek_key(const struct nilfs_bmap *direct, __u64 start,
+ __u64 *keyp)
+{
+ __u64 key;
+
+ for (key = start; key <= NILFS_DIRECT_KEY_MAX; key++) {
+ if (nilfs_direct_get_ptr(direct, key) !=
+ NILFS_BMAP_INVALID_PTR) {
+ *keyp = key;
+ return 0;
+ }
+ }
+ return -ENOENT;
+}
+
static int nilfs_direct_last_key(const struct nilfs_bmap *direct, __u64 *keyp)
{
__u64 key, lastkey;
@@ -355,7 +370,9 @@ static const struct nilfs_bmap_operations nilfs_direct_ops = {
.bop_assign = nilfs_direct_assign,
.bop_mark = NULL,
+ .bop_seek_key = nilfs_direct_seek_key,
.bop_last_key = nilfs_direct_last_key,
+
.bop_check_insert = nilfs_direct_check_insert,
.bop_check_delete = NULL,
.bop_gather_data = nilfs_direct_gather_data,
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 36f057fa8aa3..be936df4ba73 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -106,7 +106,7 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
err = nilfs_transaction_begin(inode->i_sb, &ti, 1);
if (unlikely(err))
goto out;
- err = nilfs_bmap_insert(ii->i_bmap, (unsigned long)blkoff,
+ err = nilfs_bmap_insert(ii->i_bmap, blkoff,
(unsigned long)bh_result);
if (unlikely(err != 0)) {
if (err == -EEXIST) {
@@ -441,21 +441,20 @@ struct inode *nilfs_new_inode(struct inode *dir, umode_t mode)
void nilfs_set_inode_flags(struct inode *inode)
{
unsigned int flags = NILFS_I(inode)->i_flags;
+ unsigned int new_fl = 0;
- inode->i_flags &= ~(S_SYNC | S_APPEND | S_IMMUTABLE | S_NOATIME |
- S_DIRSYNC);
if (flags & FS_SYNC_FL)
- inode->i_flags |= S_SYNC;
+ new_fl |= S_SYNC;
if (flags & FS_APPEND_FL)
- inode->i_flags |= S_APPEND;
+ new_fl |= S_APPEND;
if (flags & FS_IMMUTABLE_FL)
- inode->i_flags |= S_IMMUTABLE;
+ new_fl |= S_IMMUTABLE;
if (flags & FS_NOATIME_FL)
- inode->i_flags |= S_NOATIME;
+ new_fl |= S_NOATIME;
if (flags & FS_DIRSYNC_FL)
- inode->i_flags |= S_DIRSYNC;
- mapping_set_gfp_mask(inode->i_mapping,
- mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
+ new_fl |= S_DIRSYNC;
+ inode_set_flags(inode, new_fl, S_SYNC | S_APPEND | S_IMMUTABLE |
+ S_NOATIME | S_DIRSYNC);
}
int nilfs_read_inode_common(struct inode *inode,
@@ -540,6 +539,8 @@ static int __nilfs_read_inode(struct super_block *sb,
brelse(bh);
up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
nilfs_set_inode_flags(inode);
+ mapping_set_gfp_mask(inode->i_mapping,
+ mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
return 0;
failed_unmap:
@@ -712,7 +713,7 @@ void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
static void nilfs_truncate_bmap(struct nilfs_inode_info *ii,
unsigned long from)
{
- unsigned long b;
+ __u64 b;
int ret;
if (!test_bit(NILFS_I_BMAP, &ii->i_state))
@@ -727,7 +728,7 @@ repeat:
if (b < from)
return;
- b -= min_t(unsigned long, NILFS_MAX_TRUNCATE_BLOCKS, b - from);
+ b -= min_t(__u64, NILFS_MAX_TRUNCATE_BLOCKS, b - from);
ret = nilfs_bmap_truncate(ii->i_bmap, b);
nilfs_relax_pressure_in_lock(ii->vfs_inode.i_sb);
if (!ret || (ret == -ENOMEM &&
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 892cf5ffdb8e..dee34d990281 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -261,6 +261,60 @@ int nilfs_mdt_get_block(struct inode *inode, unsigned long blkoff, int create,
}
/**
+ * nilfs_mdt_find_block - find and get a buffer on meta data file.
+ * @inode: inode of the meta data file
+ * @start: start block offset (inclusive)
+ * @end: end block offset (inclusive)
+ * @blkoff: block offset
+ * @out_bh: place to store a pointer to buffer_head struct
+ *
+ * nilfs_mdt_find_block() looks up an existing block in range of
+ * [@start, @end] and stores pointer to a buffer head of the block to
+ * @out_bh, and block offset to @blkoff, respectively. @out_bh and
+ * @blkoff are substituted only when zero is returned.
+ *
+ * Return Value: On success, it returns 0. On error, the following negative
+ * error code is returned.
+ *
+ * %-ENOMEM - Insufficient memory available.
+ *
+ * %-EIO - I/O error
+ *
+ * %-ENOENT - no block was found in the range
+ */
+int nilfs_mdt_find_block(struct inode *inode, unsigned long start,
+ unsigned long end, unsigned long *blkoff,
+ struct buffer_head **out_bh)
+{
+ __u64 next;
+ int ret;
+
+ if (unlikely(start > end))
+ return -ENOENT;
+
+ ret = nilfs_mdt_read_block(inode, start, true, out_bh);
+ if (!ret) {
+ *blkoff = start;
+ goto out;
+ }
+ if (unlikely(ret != -ENOENT || start == ULONG_MAX))
+ goto out;
+
+ ret = nilfs_bmap_seek_key(NILFS_I(inode)->i_bmap, start + 1, &next);
+ if (!ret) {
+ if (next <= end) {
+ ret = nilfs_mdt_read_block(inode, next, true, out_bh);
+ if (!ret)
+ *blkoff = next;
+ } else {
+ ret = -ENOENT;
+ }
+ }
+out:
+ return ret;
+}
+
+/**
* nilfs_mdt_delete_block - make a hole on the meta data file.
* @inode: inode of the meta data file
* @block: block offset
diff --git a/fs/nilfs2/mdt.h b/fs/nilfs2/mdt.h
index ab172e8549c5..fe529a87a208 100644
--- a/fs/nilfs2/mdt.h
+++ b/fs/nilfs2/mdt.h
@@ -78,6 +78,9 @@ int nilfs_mdt_get_block(struct inode *, unsigned long, int,
void (*init_block)(struct inode *,
struct buffer_head *, void *),
struct buffer_head **);
+int nilfs_mdt_find_block(struct inode *inode, unsigned long start,
+ unsigned long end, unsigned long *blkoff,
+ struct buffer_head **out_bh);
int nilfs_mdt_delete_block(struct inode *, unsigned long);
int nilfs_mdt_forget_block(struct inode *, unsigned long);
int nilfs_mdt_mark_block_dirty(struct inode *, unsigned long);
@@ -111,7 +114,10 @@ static inline __u64 nilfs_mdt_cno(struct inode *inode)
return ((struct the_nilfs *)inode->i_sb->s_fs_info)->ns_cno;
}
-#define nilfs_mdt_bgl_lock(inode, bg) \
- (&NILFS_MDT(inode)->mi_bgl->locks[(bg) & (NR_BG_LOCKS-1)].lock)
+static inline spinlock_t *
+nilfs_mdt_bgl_lock(struct inode *inode, unsigned int block_group)
+{
+ return bgl_lock_ptr(NILFS_MDT(inode)->mi_bgl, block_group);
+}
#endif /* _NILFS_MDT_H */
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 700ecbcca55d..45d650addd56 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -89,18 +89,16 @@ struct buffer_head *nilfs_grab_buffer(struct inode *inode,
void nilfs_forget_buffer(struct buffer_head *bh)
{
struct page *page = bh->b_page;
+ const unsigned long clear_bits =
+ (1 << BH_Uptodate | 1 << BH_Dirty | 1 << BH_Mapped |
+ 1 << BH_Async_Write | 1 << BH_NILFS_Volatile |
+ 1 << BH_NILFS_Checked | 1 << BH_NILFS_Redirected);
lock_buffer(bh);
- clear_buffer_nilfs_volatile(bh);
- clear_buffer_nilfs_checked(bh);
- clear_buffer_nilfs_redirected(bh);
- clear_buffer_async_write(bh);
- clear_buffer_dirty(bh);
+ set_mask_bits(&bh->b_state, clear_bits, 0);
if (nilfs_page_buffers_clean(page))
__nilfs_clear_page_dirty(page);
- clear_buffer_uptodate(bh);
- clear_buffer_mapped(bh);
bh->b_blocknr = -1;
ClearPageUptodate(page);
ClearPageMappedToDisk(page);
@@ -421,6 +419,10 @@ void nilfs_clear_dirty_page(struct page *page, bool silent)
if (page_has_buffers(page)) {
struct buffer_head *bh, *head;
+ const unsigned long clear_bits =
+ (1 << BH_Uptodate | 1 << BH_Dirty | 1 << BH_Mapped |
+ 1 << BH_Async_Write | 1 << BH_NILFS_Volatile |
+ 1 << BH_NILFS_Checked | 1 << BH_NILFS_Redirected);
bh = head = page_buffers(page);
do {
@@ -430,13 +432,7 @@ void nilfs_clear_dirty_page(struct page *page, bool silent)
"discard block %llu, size %zu",
(u64)bh->b_blocknr, bh->b_size);
}
- clear_buffer_async_write(bh);
- clear_buffer_dirty(bh);
- clear_buffer_nilfs_volatile(bh);
- clear_buffer_nilfs_checked(bh);
- clear_buffer_nilfs_redirected(bh);
- clear_buffer_uptodate(bh);
- clear_buffer_mapped(bh);
+ set_mask_bits(&bh->b_state, clear_bits, 0);
unlock_buffer(bh);
} while (bh = bh->b_this_page, bh != head);
}
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 0c3f303baf32..c6abbad9b8e3 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -24,6 +24,7 @@
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>
+#include <linux/bitops.h>
#include <linux/bio.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
@@ -1588,7 +1589,6 @@ static void nilfs_segctor_prepare_write(struct nilfs_sc_info *sci)
list_for_each_entry(bh, &segbuf->sb_segsum_buffers,
b_assoc_buffers) {
- set_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page) {
lock_page(bd_page);
@@ -1688,7 +1688,6 @@ static void nilfs_abort_logs(struct list_head *logs, int err)
list_for_each_entry(segbuf, logs, sb_list) {
list_for_each_entry(bh, &segbuf->sb_segsum_buffers,
b_assoc_buffers) {
- clear_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page)
end_page_writeback(bd_page);
@@ -1768,7 +1767,6 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
b_assoc_buffers) {
set_buffer_uptodate(bh);
clear_buffer_dirty(bh);
- clear_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page)
end_page_writeback(bd_page);
@@ -1788,12 +1786,13 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
*/
list_for_each_entry(bh, &segbuf->sb_payload_buffers,
b_assoc_buffers) {
- set_buffer_uptodate(bh);
- clear_buffer_dirty(bh);
- clear_buffer_async_write(bh);
- clear_buffer_delay(bh);
- clear_buffer_nilfs_volatile(bh);
- clear_buffer_nilfs_redirected(bh);
+ const unsigned long set_bits = (1 << BH_Uptodate);
+ const unsigned long clear_bits =
+ (1 << BH_Dirty | 1 << BH_Async_Write |
+ 1 << BH_Delay | 1 << BH_NILFS_Volatile |
+ 1 << BH_NILFS_Redirected);
+
+ set_mask_bits(&bh->b_state, clear_bits, set_bits);
if (bh == segbuf->sb_super_root) {
if (bh->b_page != bd_page) {
end_page_writeback(bd_page);
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 5bc2a1cf73c3..c1725f20a9d1 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -1020,7 +1020,7 @@ int nilfs_checkpoint_is_mounted(struct super_block *sb, __u64 cno)
struct dentry *dentry;
int ret;
- if (cno < 0 || cno > nilfs->ns_cno)
+ if (cno > nilfs->ns_cno)
return false;
if (cno >= nilfs_last_cno(nilfs))
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 8e5ad83b629a..af84ad04df77 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -8,6 +8,7 @@
#include <linux/security.h>
#include <linux/file.h>
#include <linux/seq_file.h>
+#include <linux/fs.h>
#include <linux/proc_fs.h>
@@ -48,17 +49,23 @@ static int seq_show(struct seq_file *m, void *v)
put_files_struct(files);
}
- if (!ret) {
- seq_printf(m, "pos:\t%lli\nflags:\t0%o\nmnt_id:\t%i\n",
- (long long)file->f_pos, f_flags,
- real_mount(file->f_path.mnt)->mnt_id);
- if (file->f_op->show_fdinfo)
- file->f_op->show_fdinfo(m, file);
- ret = seq_has_overflowed(m);
- fput(file);
- }
+ if (ret)
+ return ret;
- return ret;
+ seq_printf(m, "pos:\t%lli\nflags:\t0%o\nmnt_id:\t%i\n",
+ (long long)file->f_pos, f_flags,
+ real_mount(file->f_path.mnt)->mnt_id);
+
+ show_fd_locks(m, file, files);
+ if (seq_has_overflowed(m))
+ goto out;
+
+ if (file->f_op->show_fdinfo)
+ file->f_op->show_fdinfo(m, file);
+
+out:
+ fput(file);
+ return 0;
}
static int seq_fdinfo_open(struct inode *inode, struct file *file)