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| author | Johann Lombardi <johann@whamcloud.com> | 2011-03-31 13:23:47 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2011-04-05 01:19:42 -0400 |
| commit | b44c59a80ded004e1a82712e5f9e17b131c03221 (patch) | |
| tree | 36588193bf5cc91d80d9d8376d5bad78f2babd0c | |
| parent | fe3f566cd19bb6d787c92b2e202c85f929abf3ac (diff) | |
| download | linux-b44c59a80ded004e1a82712e5f9e17b131c03221.tar.bz2 | |
Btrfs: fix subvol_sem leak in btrfs_rename()
btrfs_rename() does not release the subvol_sem if the transaction failed to start.
Signed-off-by: Johann Lombardi <johann@whamcloud.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/inode.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 62ae9d5da806..1ca3e68586cf 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6961,8 +6961,10 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, * should cover the worst case number of items we'll modify. */ trans = btrfs_start_transaction(root, 20); - if (IS_ERR(trans)) - return PTR_ERR(trans); + if (IS_ERR(trans)) { + ret = PTR_ERR(trans); + goto out_notrans; + } btrfs_set_trans_block_group(trans, new_dir); @@ -7062,7 +7064,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, } out_fail: btrfs_end_transaction_throttle(trans, root); - +out_notrans: if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID) up_read(&root->fs_info->subvol_sem); |