Btrfs: remove a BUG_ON() in btrfs_commit_transaction()

wait_for_commit() always returns 0.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index ff5549fe4624..7dc36fab4afc 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -351,11 +351,10 @@ struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *root
 }
 
 /* wait for a transaction commit to be fully complete */
-static noinline int wait_for_commit(struct btrfs_root *root,
+static noinline void wait_for_commit(struct btrfs_root *root,
                                     struct btrfs_transaction *commit)
 {
         wait_event(commit->commit_wait, commit->commit_done);
-        return 0;
 }
 
 int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
@@ -1189,8 +1188,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
                 atomic_inc(&cur_trans->use_count);
                 btrfs_end_transaction(trans, root);
 
-                ret = wait_for_commit(root, cur_trans);
-                BUG_ON(ret);
+                wait_for_commit(root, cur_trans);
 
                 put_transaction(cur_trans);