md: use wait_event() to simplify md_super_wait()
md_super_wait is really just wait_event() open-coded.
So use the macro instead.
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4c72e96..6be7146 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -766,14 +766,7 @@
void md_super_wait(struct mddev *mddev)
{
/* wait for all superblock writes that were scheduled to complete */
- DEFINE_WAIT(wq);
- for(;;) {
- prepare_to_wait(&mddev->sb_wait, &wq, TASK_UNINTERRUPTIBLE);
- if (atomic_read(&mddev->pending_writes)==0)
- break;
- schedule();
- }
- finish_wait(&mddev->sb_wait, &wq);
+ wait_event(mddev->sb_wait, atomic_read(&mddev->pending_writes)==0);
}
int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,