From: Zhao Lei <zhaolei@xxxxxxxxxxxxxx>
wait_event() is just suit for these hand-made code.
Signed-off-by: Zhao Lei <zhaolei@xxxxxxxxxxxxxx>
---
fs/btrfs/dev-replace.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 92109b7..1a2d440 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -440,18 +440,9 @@ leave:
*/
static void btrfs_rm_dev_replace_blocked(struct btrfs_fs_info *fs_info)
{
- s64 writers;
- DEFINE_WAIT(wait);
-
set_bit(BTRFS_FS_STATE_DEV_REPLACING, &fs_info->fs_state);
- do {
- prepare_to_wait(&fs_info->replace_wait, &wait,
- TASK_UNINTERRUPTIBLE);
- writers = percpu_counter_sum(&fs_info->bio_counter);
- if (writers)
- schedule();
- finish_wait(&fs_info->replace_wait, &wait);
- } while (writers);
+ wait_event(fs_info->replace_wait,
+ !percpu_counter_sum(&fs_info->bio_counter));
}
/*
--
1.8.5.1
--
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