Btrfs: clean up for wait_extent_bit()

We can just use cond_resched_lock().

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

1 files changed, 1 insertions, 5 deletions

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 0d69425d0197..a0811e639f58 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -648,11 +648,7 @@ again:
                 if (start > end)
                         break;
 
-                if (need_resched()) {
-                        spin_unlock(&tree->lock);
-                        cond_resched();
-                        spin_lock(&tree->lock);
-                }
+                cond_resched_lock(&tree->lock);
         }
 out:
         spin_unlock(&tree->lock);