diff options
| author | Filipe Manana <fdmanana@suse.com> | 2016-01-05 16:24:05 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-03 15:07:11 -0800 |
| commit | e6edd99cfa44512924be856cdf68c974d52629ca (patch) | |
| tree | d68a27473a7ed48363f6b08354a329d2d809c130 | |
| parent | c6362a1e3e428e101c0fc089b496f30e06b7e3c5 (diff) | |
Btrfs: fix transaction handle leak on failure to create hard link
commit 271dba4521aed0c37c063548f876b49f5cd64b2e upstream.
If we failed to create a hard link we were not always releasing the
the transaction handle we got before, resulting in a memory leak and
preventing any other tasks from being able to commit the current
transaction.
Fix this by always releasing our transaction handle.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/btrfs/inode.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index a93e36343688..52fc1b5e9f03 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6493,7 +6493,7 @@ out_unlock_inode: static int btrfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { - struct btrfs_trans_handle *trans; + struct btrfs_trans_handle *trans = NULL; struct btrfs_root *root = BTRFS_I(dir)->root; struct inode *inode = d_inode(old_dentry); u64 index; @@ -6519,6 +6519,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, trans = btrfs_start_transaction(root, 5); if (IS_ERR(trans)) { err = PTR_ERR(trans); + trans = NULL; goto fail; } @@ -6552,9 +6553,10 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, btrfs_log_new_name(trans, inode, NULL, parent); } - btrfs_end_transaction(trans, root); btrfs_balance_delayed_items(root); fail: + if (trans) + btrfs_end_transaction(trans, root); if (drop_inode) { inode_dec_link_count(inode); iput(inode); |