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-rw-r--r--fs/gfs2/aops.c2
-rw-r--r--fs/gfs2/file.c23
-rw-r--r--fs/gfs2/inode.c23
-rw-r--r--fs/gfs2/quota.c13
-rw-r--r--fs/gfs2/rgrp.c68
-rw-r--r--fs/gfs2/rgrp.h10
-rw-r--r--fs/gfs2/super.c2
-rw-r--r--fs/gfs2/trans.h2
8 files changed, 104 insertions, 39 deletions
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index e80a464850c8..aba77b5720bc 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -878,7 +878,7 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
brelse(dibh);
failed:
gfs2_trans_end(sdp);
- if (ip->i_res)
+ if (gfs2_mb_reserved(ip))
gfs2_inplace_release(ip);
if (qa) {
gfs2_quota_unlock(ip);
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 31b199f6efc1..37906174d417 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -376,6 +376,10 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
*/
vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE);
+ ret = gfs2_rs_alloc(ip);
+ if (ret)
+ return ret;
+
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
ret = gfs2_glock_nq(&gh);
if (ret)
@@ -569,10 +573,15 @@ static int gfs2_release(struct inode *inode, struct file *file)
{
struct gfs2_sbd *sdp = inode->i_sb->s_fs_info;
struct gfs2_file *fp;
+ struct gfs2_inode *ip = GFS2_I(inode);
fp = file->private_data;
file->private_data = NULL;
+ if ((file->f_mode & FMODE_WRITE) && ip->i_res &&
+ (atomic_read(&inode->i_writecount) == 1))
+ gfs2_rs_delete(ip);
+
if (gfs2_assert_warn(sdp, fp))
return -EIO;
@@ -653,12 +662,16 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
+ struct dentry *dentry = file->f_dentry;
+ struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
+ int ret;
+
+ ret = gfs2_rs_alloc(ip);
+ if (ret)
+ return ret;
if (file->f_flags & O_APPEND) {
- struct dentry *dentry = file->f_dentry;
- struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
struct gfs2_holder gh;
- int ret;
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
if (ret)
@@ -774,6 +787,10 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset,
if (bytes == 0)
bytes = sdp->sd_sb.sb_bsize;
+ error = gfs2_rs_alloc(ip);
+ if (error)
+ return error;
+
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &ip->i_gh);
error = gfs2_glock_nq(&ip->i_gh);
if (unlikely(error))
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index a9ba2444e077..2a1b4b5a648c 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -667,6 +667,10 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
if (!name->len || name->len > GFS2_FNAMESIZE)
return -ENAMETOOLONG;
+ error = gfs2_rs_alloc(dip);
+ if (error)
+ return error;
+
error = gfs2_glock_nq_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
if (error)
goto fail;
@@ -704,6 +708,11 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
if (error)
goto fail_gunlock2;
+ /* the new inode needs a reservation so it can allocate xattrs. */
+ error = gfs2_rs_alloc(GFS2_I(inode));
+ if (error)
+ goto fail_gunlock2;
+
error = gfs2_acl_create(dip, inode);
if (error)
goto fail_gunlock2;
@@ -722,7 +731,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
gfs2_trans_end(sdp);
/* Check if we reserved space in the rgrp. Function link_dinode may
not, depending on whether alloc is required. */
- if (dip->i_res)
+ if (gfs2_mb_reserved(dip))
gfs2_inplace_release(dip);
gfs2_quota_unlock(dip);
gfs2_qadata_put(dip);
@@ -819,6 +828,10 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
if (S_ISDIR(inode->i_mode))
return -EPERM;
+ error = gfs2_rs_alloc(dip);
+ if (error)
+ return error;
+
gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1);
@@ -1234,6 +1247,10 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
if (error)
return error;
+ error = gfs2_rs_alloc(ndip);
+ if (error)
+ return error;
+
if (odip != ndip) {
error = gfs2_glock_nq_init(sdp->sd_rename_gl, LM_ST_EXCLUSIVE,
0, &r_gh);
@@ -1644,6 +1661,10 @@ static int gfs2_setattr(struct dentry *dentry, struct iattr *attr)
struct gfs2_holder i_gh;
int error;
+ error = gfs2_rs_alloc(ip);
+ if (error)
+ return error;
+
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh);
if (error)
return error;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index b97178e7d397..197cc2dade7f 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -764,6 +764,10 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
unsigned int nalloc = 0, blocks;
int error;
+ error = gfs2_rs_alloc(ip);
+ if (error)
+ return error;
+
gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
&data_blocks, &ind_blocks);
@@ -1549,10 +1553,14 @@ static int gfs2_set_dqblk(struct super_block *sb, int type, qid_t id,
if (error)
return error;
+ error = gfs2_rs_alloc(ip);
+ if (error)
+ goto out_put;
+
mutex_lock(&ip->i_inode.i_mutex);
error = gfs2_glock_nq_init(qd->qd_gl, LM_ST_EXCLUSIVE, 0, &q_gh);
if (error)
- goto out_put;
+ goto out_unlockput;
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh);
if (error)
goto out_q;
@@ -1609,8 +1617,9 @@ out_i:
gfs2_glock_dq_uninit(&i_gh);
out_q:
gfs2_glock_dq_uninit(&q_gh);
-out_put:
+out_unlockput:
mutex_unlock(&ip->i_inode.i_mutex);
+out_put:
qd_put(qd);
return error;
}
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index f74fb9bd1973..e944fefbc9a8 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -417,6 +417,39 @@ void gfs2_free_clones(struct gfs2_rgrpd *rgd)
}
}
+/**
+ * gfs2_rs_alloc - make sure we have a reservation assigned to the inode
+ * @ip: the inode for this reservation
+ */
+int gfs2_rs_alloc(struct gfs2_inode *ip)
+{
+ int error = 0;
+
+ down_write(&ip->i_rw_mutex);
+ if (!ip->i_res) {
+ ip->i_res = kmem_cache_zalloc(gfs2_rsrv_cachep, GFP_NOFS);
+ if (!ip->i_res)
+ error = -ENOMEM;
+ }
+ up_write(&ip->i_rw_mutex);
+ return error;
+}
+
+/**
+ * gfs2_rs_delete - delete a reservation
+ * @ip: The inode for this reservation
+ *
+ */
+void gfs2_rs_delete(struct gfs2_inode *ip)
+{
+ down_write(&ip->i_rw_mutex);
+ if (ip->i_res) {
+ kmem_cache_free(gfs2_rsrv_cachep, ip->i_res);
+ ip->i_res = NULL;
+ }
+ up_write(&ip->i_rw_mutex);
+}
+
void gfs2_clear_rgrpd(struct gfs2_sbd *sdp)
{
struct rb_node *n;
@@ -993,22 +1026,6 @@ struct gfs2_qadata *gfs2_qadata_get(struct gfs2_inode *ip)
}
/**
- * gfs2_blkrsv_get - get the struct gfs2_blkreserv structure for an inode
- * @ip: the incore GFS2 inode structure
- *
- * Returns: the struct gfs2_qadata
- */
-
-static int gfs2_blkrsv_get(struct gfs2_inode *ip)
-{
- BUG_ON(ip->i_res != NULL);
- ip->i_res = kmem_cache_zalloc(gfs2_rsrv_cachep, GFP_NOFS);
- if (!ip->i_res)
- return -ENOMEM;
- return 0;
-}
-
-/**
* try_rgrp_fit - See if a given reservation will fit in a given RG
* @rgd: the RG data
* @ip: the inode
@@ -1162,13 +1179,6 @@ static int get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
return -ENOSPC;
}
-static void gfs2_blkrsv_put(struct gfs2_inode *ip)
-{
- BUG_ON(ip->i_res == NULL);
- kmem_cache_free(gfs2_rsrv_cachep, ip->i_res);
- ip->i_res = NULL;
-}
-
/**
* gfs2_inplace_reserve - Reserve space in the filesystem
* @ip: the inode to reserve space for
@@ -1181,14 +1191,10 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_blkreserv *rs;
- int error;
+ int error = 0;
u64 last_unlinked = NO_BLOCK;
int tries = 0;
- error = gfs2_blkrsv_get(ip);
- if (error)
- return error;
-
rs = ip->i_res;
rs->rs_requested = requested;
if (gfs2_assert_warn(sdp, requested)) {
@@ -1213,7 +1219,7 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested)
out:
if (error)
- gfs2_blkrsv_put(ip);
+ rs->rs_requested = 0;
return error;
}
@@ -1230,7 +1236,7 @@ void gfs2_inplace_release(struct gfs2_inode *ip)
if (rs->rs_rgd_gh.gh_gl)
gfs2_glock_dq_uninit(&rs->rs_rgd_gh);
- gfs2_blkrsv_put(ip);
+ rs->rs_requested = 0;
}
/**
@@ -1496,7 +1502,7 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks,
/* Only happens if there is a bug in gfs2, return something distinctive
* to ensure that it is noticed.
*/
- if (ip->i_res == NULL)
+ if (ip->i_res->rs_requested == 0)
return -ECANCELED;
rgd = ip->i_rgd;
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index b4b10f4de25f..d9eda5f9ef2a 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -43,6 +43,8 @@ extern void gfs2_inplace_release(struct gfs2_inode *ip);
extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
bool dinode, u64 *generation);
+extern int gfs2_rs_alloc(struct gfs2_inode *ip);
+extern void gfs2_rs_delete(struct gfs2_inode *ip);
extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
@@ -68,4 +70,12 @@ extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed);
extern int gfs2_fitrim(struct file *filp, void __user *argp);
+/* This is how to tell if a reservation is "inplace" reserved: */
+static inline int gfs2_mb_reserved(struct gfs2_inode *ip)
+{
+ if (ip->i_res && ip->i_res->rs_requested)
+ return 1;
+ return 0;
+}
+
#endif /* __RGRP_DOT_H__ */
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 713e621c240b..65578df29446 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1554,6 +1554,7 @@ out_unlock:
out:
/* Case 3 starts here */
truncate_inode_pages(&inode->i_data, 0);
+ gfs2_rs_delete(ip);
clear_inode(inode);
gfs2_dir_hash_inval(ip);
ip->i_gl->gl_object = NULL;
@@ -1576,6 +1577,7 @@ static struct inode *gfs2_alloc_inode(struct super_block *sb)
ip->i_flags = 0;
ip->i_gl = NULL;
ip->i_rgd = NULL;
+ ip->i_res = NULL;
}
return &ip->i_inode;
}
diff --git a/fs/gfs2/trans.h b/fs/gfs2/trans.h
index 125d4572e1c0..41f42cdccbb8 100644
--- a/fs/gfs2/trans.h
+++ b/fs/gfs2/trans.h
@@ -31,7 +31,7 @@ struct gfs2_glock;
static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip)
{
const struct gfs2_blkreserv *rs = ip->i_res;
- if (rs->rs_requested < ip->i_rgd->rd_length)
+ if (rs && rs->rs_requested < ip->i_rgd->rd_length)
return rs->rs_requested + 1;
return ip->i_rgd->rd_length;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 10:03:36 +0100