btrfs: replace waitqueue_actvie with cond_wake_up

[sfrench/cifs-2.6.git] / fs / btrfs / dev-replace.c

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 12f703e127ddef9f4f7a821c971a76abca0c00ed..89946285203ddf9c27504fb319435eeab558af27 100644 (file)
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -1009,9 +1009,9 @@ void btrfs_dev_replace_clear_lock_blocking(
        ASSERT(atomic_read(&dev_replace->read_locks) > 0);
        ASSERT(atomic_read(&dev_replace->blocking_readers) > 0);
        read_lock(&dev_replace->lock);
-       if (atomic_dec_and_test(&dev_replace->blocking_readers) &&
-           waitqueue_active(&dev_replace->read_lock_wq))
-               wake_up(&dev_replace->read_lock_wq);
+       /* Barrier implied by atomic_dec_and_test */
+       if (atomic_dec_and_test(&dev_replace->blocking_readers))
+               cond_wake_up_nomb(&dev_replace->read_lock_wq);
 }
 
 void btrfs_bio_counter_inc_noblocked(struct btrfs_fs_info *fs_info)
@@ -1022,9 +1022,7 @@ void btrfs_bio_counter_inc_noblocked(struct btrfs_fs_info *fs_info)
 void btrfs_bio_counter_sub(struct btrfs_fs_info *fs_info, s64 amount)
 {
        percpu_counter_sub(&fs_info->bio_counter, amount);
-
-       if (waitqueue_active(&fs_info->replace_wait))
-               wake_up(&fs_info->replace_wait);
+       cond_wake_up_nomb(&fs_info->replace_wait);
 }
 
 void btrfs_bio_counter_inc_blocked(struct btrfs_fs_info *fs_info)