Jan Kara
2015-Jul-15 12:42 UTC
[Ocfs2-devel] [PATCH 5/6] jfs: Handle error from dquot_initialize()
dquot_initialize() can now return error. Handle it where possible.
Signed-off-by: Jan Kara <jack at suse.com>
---
fs/jfs/file.c | 7 +++++--
fs/jfs/jfs_inode.c | 4 +++-
fs/jfs/namei.c | 53 +++++++++++++++++++++++++++++++++++++++--------------
3 files changed, 47 insertions(+), 17 deletions(-)
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index e98d39d75cf4..34ad63ea0280 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -107,8 +107,11 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
if (rc)
return rc;
- if (is_quota_modification(inode, iattr))
- dquot_initialize(inode);
+ if (is_quota_modification(inode, iattr)) {
+ rc = dquot_initialize(inode);
+ if (rc)
+ return rc;
+ }
if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid,
inode->i_uid)) ||
(iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid,
inode->i_gid))) {
rc = dquot_transfer(inode, iattr);
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 6b0f816201a2..cf7936fe2e68 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -109,7 +109,9 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
/*
* Allocate inode to quota.
*/
- dquot_initialize(inode);
+ rc = dquot_initialize(inode);
+ if (rc)
+ goto fail_drop;
rc = dquot_alloc_inode(inode);
if (rc)
goto fail_drop;
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index e33be921aa41..fb28ce85aa52 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -86,7 +86,9 @@ static int jfs_create(struct inode *dip, struct dentry
*dentry, umode_t mode,
jfs_info("jfs_create: dip:0x%p name:%pd", dip, dentry);
- dquot_initialize(dip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out1;
/*
* search parent directory for entry/freespace
@@ -218,7 +220,9 @@ static int jfs_mkdir(struct inode *dip, struct dentry
*dentry, umode_t mode)
jfs_info("jfs_mkdir: dip:0x%p name:%pd", dip, dentry);
- dquot_initialize(dip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out1;
/*
* search parent directory for entry/freespace
@@ -355,8 +359,12 @@ static int jfs_rmdir(struct inode *dip, struct dentry
*dentry)
jfs_info("jfs_rmdir: dip:0x%p name:%pd", dip, dentry);
/* Init inode for quota operations. */
- dquot_initialize(dip);
- dquot_initialize(ip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out;
+ rc = dquot_initialize(ip);
+ if (rc)
+ goto out;
/* directory must be empty to be removed */
if (!dtEmpty(ip)) {
@@ -483,8 +491,12 @@ static int jfs_unlink(struct inode *dip, struct dentry
*dentry)
jfs_info("jfs_unlink: dip:0x%p name:%pd", dip, dentry);
/* Init inode for quota operations. */
- dquot_initialize(dip);
- dquot_initialize(ip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out;
+ rc = dquot_initialize(ip);
+ if (rc)
+ goto out;
if ((rc = get_UCSname(&dname, dentry)))
goto out;
@@ -799,7 +811,9 @@ static int jfs_link(struct dentry *old_dentry,
jfs_info("jfs_link: %pd %pd", old_dentry, dentry);
- dquot_initialize(dir);
+ rc = dquot_initialize(dir);
+ if (rc)
+ goto out;
tid = txBegin(ip->i_sb, 0);
@@ -810,7 +824,7 @@ static int jfs_link(struct dentry *old_dentry,
* scan parent directory for entry/freespace
*/
if ((rc = get_UCSname(&dname, dentry)))
- goto out;
+ goto out_tx;
if ((rc = dtSearch(dir, &dname, &ino, &btstack, JFS_CREATE)))
goto free_dname;
@@ -842,12 +856,13 @@ static int jfs_link(struct dentry *old_dentry,
free_dname:
free_UCSname(&dname);
- out:
+ out_tx:
txEnd(tid);
mutex_unlock(&JFS_IP(ip)->commit_mutex);
mutex_unlock(&JFS_IP(dir)->commit_mutex);
+ out:
jfs_info("jfs_link: rc:%d", rc);
return rc;
}
@@ -891,7 +906,9 @@ static int jfs_symlink(struct inode *dip, struct dentry
*dentry,
jfs_info("jfs_symlink: dip:0x%p name:%s", dip, name);
- dquot_initialize(dip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out1;
ssize = strlen(name) + 1;
@@ -1082,8 +1099,12 @@ static int jfs_rename(struct inode *old_dir, struct
dentry *old_dentry,
jfs_info("jfs_rename: %pd %pd", old_dentry, new_dentry);
- dquot_initialize(old_dir);
- dquot_initialize(new_dir);
+ rc = dquot_initialize(old_dir);
+ if (rc)
+ goto out1;
+ rc = dquot_initialize(new_dir);
+ if (rc)
+ goto out1;
old_ip = d_inode(old_dentry);
new_ip = d_inode(new_dentry);
@@ -1130,7 +1151,9 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
} else if (new_ip) {
IWRITE_LOCK(new_ip, RDWRLOCK_NORMAL);
/* Init inode for quota operations. */
- dquot_initialize(new_ip);
+ rc = dquot_initialize(new_ip);
+ if (rc)
+ goto out3;
}
/*
@@ -1354,7 +1377,9 @@ static int jfs_mknod(struct inode *dir, struct dentry
*dentry,
jfs_info("jfs_mknod: %pd", dentry);
- dquot_initialize(dir);
+ rc = dquot_initialize(dir);
+ if (rc)
+ goto out;
if ((rc = get_UCSname(&dname, dentry)))
goto out;
--
2.1.4
Dave Kleikamp
2015-Jul-15 18:52 UTC
[Ocfs2-devel] [PATCH] jfs: clean up jfs_rename and fix out of order unlock
Subject: [PATCH] jfs: clean up jfs_rename and fix out of order unlock
[ Jan, I'll push this right away. You can carry it along until it
gets merged. I want this pushed to stable as well.]
The end of jfs_rename(), which is also used by the error paths,
included a call to IWRITE_UNLOCK(new_ip) after labels out1, out2
and out3. If we come in through these labels, IWRITE_LOCK() has not
been called yet.
In moving that call to the correct spot, I also moved some
exceptional truncate code earlier as well, since the early error
paths don't need to deal with it, and I renamed out4: to out_tx: so
a future patch by Jan Kara doesn't need to deal with renumbering or
confusing out-of-order labels.
Signed-off-by: Dave Kleikamp <dave.kleikamp at oracle.com>
---
fs/jfs/namei.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index e33be92..a5ac97b 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1160,7 +1160,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
rc = dtModify(tid, new_dir, &new_dname, &ino,
old_ip->i_ino, JFS_RENAME);
if (rc)
- goto out4;
+ goto out_tx;
drop_nlink(new_ip);
if (S_ISDIR(new_ip->i_mode)) {
drop_nlink(new_ip);
@@ -1185,7 +1185,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
if ((new_size = commitZeroLink(tid, new_ip)) < 0) {
txAbort(tid, 1); /* Marks FS Dirty */
rc = new_size;
- goto out4;
+ goto out_tx;
}
tblk = tid_to_tblock(tid);
tblk->xflag |= COMMIT_DELETE;
@@ -1203,7 +1203,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
if (rc) {
jfs_err("jfs_rename didn't expect dtSearch to fail "
"w/rc = %d", rc);
- goto out4;
+ goto out_tx;
}
ino = old_ip->i_ino;
@@ -1211,7 +1211,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
if (rc) {
if (rc == -EIO)
jfs_err("jfs_rename: dtInsert returned -EIO");
- goto out4;
+ goto out_tx;
}
if (S_ISDIR(old_ip->i_mode))
inc_nlink(new_dir);
@@ -1226,7 +1226,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
jfs_err("jfs_rename did not expect dtDelete to return rc = %d",
rc);
txAbort(tid, 1); /* Marks Filesystem dirty */
- goto out4;
+ goto out_tx;
}
if (S_ISDIR(old_ip->i_mode)) {
drop_nlink(old_dir);
@@ -1285,7 +1285,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
rc = txCommit(tid, ipcount, iplist, commit_flag);
- out4:
+ out_tx:
txEnd(tid);
if (new_ip)
mutex_unlock(&JFS_IP(new_ip)->commit_mutex);
@@ -1308,13 +1308,6 @@ static int jfs_rename(struct inode *old_dir, struct
dentry *old_dentry,
}
if (new_ip && (new_ip->i_nlink == 0))
set_cflag(COMMIT_Nolink, new_ip);
- out3:
- free_UCSname(&new_dname);
- out2:
- free_UCSname(&old_dname);
- out1:
- if (new_ip && !S_ISDIR(new_ip->i_mode))
- IWRITE_UNLOCK(new_ip);
/*
* Truncating the directory index table is not guaranteed. It
* may need to be done iteratively
@@ -1325,7 +1318,13 @@ static int jfs_rename(struct inode *old_dir, struct
dentry *old_dentry,
clear_cflag(COMMIT_Stale, old_dir);
}
-
+ if (new_ip && !S_ISDIR(new_ip->i_mode))
+ IWRITE_UNLOCK(new_ip);
+ out3:
+ free_UCSname(&new_dname);
+ out2:
+ free_UCSname(&old_dname);
+ out1:
jfs_info("jfs_rename: returning %d", rc);
return rc;
}
--
2.4.5
Dave Kleikamp
2015-Jul-15 18:53 UTC
[Ocfs2-devel] [PATCH] dquot_initialize() can now return error. Handle it where possible
Slightly modified by Dave Kleikamp due to needed jfs_rename() error path fix.
Signed-off-by: Jan Kara <jack at suse.com>
Reviewed-by: Dave Kleikamp <dave.kleikamp at oracle.com>
---
fs/jfs/file.c | 7 +++++--
fs/jfs/jfs_inode.c | 4 +++-
fs/jfs/namei.c | 54 ++++++++++++++++++++++++++++++++++++++++--------------
3 files changed, 48 insertions(+), 17 deletions(-)
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index e98d39d..34ad63ea0 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -107,8 +107,11 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
if (rc)
return rc;
- if (is_quota_modification(inode, iattr))
- dquot_initialize(inode);
+ if (is_quota_modification(inode, iattr)) {
+ rc = dquot_initialize(inode);
+ if (rc)
+ return rc;
+ }
if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid,
inode->i_uid)) ||
(iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid,
inode->i_gid))) {
rc = dquot_transfer(inode, iattr);
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 6b0f816..cf7936f 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -109,7 +109,9 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
/*
* Allocate inode to quota.
*/
- dquot_initialize(inode);
+ rc = dquot_initialize(inode);
+ if (rc)
+ goto fail_drop;
rc = dquot_alloc_inode(inode);
if (rc)
goto fail_drop;
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index a5ac97b..35976bd 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -86,7 +86,9 @@ static int jfs_create(struct inode *dip, struct dentry
*dentry, umode_t mode,
jfs_info("jfs_create: dip:0x%p name:%pd", dip, dentry);
- dquot_initialize(dip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out1;
/*
* search parent directory for entry/freespace
@@ -218,7 +220,9 @@ static int jfs_mkdir(struct inode *dip, struct dentry
*dentry, umode_t mode)
jfs_info("jfs_mkdir: dip:0x%p name:%pd", dip, dentry);
- dquot_initialize(dip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out1;
/*
* search parent directory for entry/freespace
@@ -355,8 +359,12 @@ static int jfs_rmdir(struct inode *dip, struct dentry
*dentry)
jfs_info("jfs_rmdir: dip:0x%p name:%pd", dip, dentry);
/* Init inode for quota operations. */
- dquot_initialize(dip);
- dquot_initialize(ip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out;
+ rc = dquot_initialize(ip);
+ if (rc)
+ goto out;
/* directory must be empty to be removed */
if (!dtEmpty(ip)) {
@@ -483,8 +491,12 @@ static int jfs_unlink(struct inode *dip, struct dentry
*dentry)
jfs_info("jfs_unlink: dip:0x%p name:%pd", dip, dentry);
/* Init inode for quota operations. */
- dquot_initialize(dip);
- dquot_initialize(ip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out;
+ rc = dquot_initialize(ip);
+ if (rc)
+ goto out;
if ((rc = get_UCSname(&dname, dentry)))
goto out;
@@ -799,7 +811,9 @@ static int jfs_link(struct dentry *old_dentry,
jfs_info("jfs_link: %pd %pd", old_dentry, dentry);
- dquot_initialize(dir);
+ rc = dquot_initialize(dir);
+ if (rc)
+ goto out;
tid = txBegin(ip->i_sb, 0);
@@ -810,7 +824,7 @@ static int jfs_link(struct dentry *old_dentry,
* scan parent directory for entry/freespace
*/
if ((rc = get_UCSname(&dname, dentry)))
- goto out;
+ goto out_tx;
if ((rc = dtSearch(dir, &dname, &ino, &btstack, JFS_CREATE)))
goto free_dname;
@@ -842,12 +856,13 @@ static int jfs_link(struct dentry *old_dentry,
free_dname:
free_UCSname(&dname);
- out:
+ out_tx:
txEnd(tid);
mutex_unlock(&JFS_IP(ip)->commit_mutex);
mutex_unlock(&JFS_IP(dir)->commit_mutex);
+ out:
jfs_info("jfs_link: rc:%d", rc);
return rc;
}
@@ -891,7 +906,9 @@ static int jfs_symlink(struct inode *dip, struct dentry
*dentry,
jfs_info("jfs_symlink: dip:0x%p name:%s", dip, name);
- dquot_initialize(dip);
+ rc = dquot_initialize(dip);
+ if (rc)
+ goto out1;
ssize = strlen(name) + 1;
@@ -1082,8 +1099,12 @@ static int jfs_rename(struct inode *old_dir, struct
dentry *old_dentry,
jfs_info("jfs_rename: %pd %pd", old_dentry, new_dentry);
- dquot_initialize(old_dir);
- dquot_initialize(new_dir);
+ rc = dquot_initialize(old_dir);
+ if (rc)
+ goto out1;
+ rc = dquot_initialize(new_dir);
+ if (rc)
+ goto out1;
old_ip = d_inode(old_dentry);
new_ip = d_inode(new_dentry);
@@ -1130,7 +1151,9 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
} else if (new_ip) {
IWRITE_LOCK(new_ip, RDWRLOCK_NORMAL);
/* Init inode for quota operations. */
- dquot_initialize(new_ip);
+ rc = dquot_initialize(new_ip);
+ if (rc)
+ goto out_unlock;
}
/*
@@ -1318,6 +1341,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry
*old_dentry,
clear_cflag(COMMIT_Stale, old_dir);
}
+ out_unlock:
if (new_ip && !S_ISDIR(new_ip->i_mode))
IWRITE_UNLOCK(new_ip);
out3:
@@ -1353,7 +1377,9 @@ static int jfs_mknod(struct inode *dir, struct dentry
*dentry,
jfs_info("jfs_mknod: %pd", dentry);
- dquot_initialize(dir);
+ rc = dquot_initialize(dir);
+ if (rc)
+ goto out;
if ((rc = get_UCSname(&dname, dentry)))
goto out;
--
2.4.5