2011-05-25 07:18:14

by Manish Katiyar

[permalink] [raw]
Subject: [PATCH 1/3] ext4 : Fix error handling in acl.c if journal start fails

Hi Ted,

This patch fixes following issues.

a) Incase journal transaction allocation fails due to ENOMEM
don't call ext4_std_error() since it will remount the fs as readonly
and logs the message in kernel log.

b) Call posix_acl_release() incase journal allocation fails in case
of error paths.

Signed-off-by: Manish Katiyar <[email protected]>
Acked-by: Jan Kara <[email protected]>
---
fs/ext4/acl.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 21eacd7..93dc9a6 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -354,7 +354,8 @@ ext4_acl_chmod(struct inode *inode)
EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
- ext4_std_error(inode->i_sb, error);
+ if (error != -ENOMEM)
+ ext4_std_error(inode->i_sb, error);
goto out;
}
error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
@@ -450,8 +451,10 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,

retry:
handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
- if (IS_ERR(handle))
- return PTR_ERR(handle);
+ if (IS_ERR(handle)) {
+ error = PTR_ERR(handle);
+ goto release_and_out;
+ }
error = ext4_set_acl(handle, inode, type, acl);
ext4_journal_stop(handle);
if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
--
1.7.4.1

--
Thanks -
Manish