md: delete dead code

Nobody is using mddev_check_plugged(), so delete the dead code

Signed-off-by: Shaohua Li <shli@fb.com>

1 files changed, 0 insertions, 8 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 548d1b8014f8..82bd1f3d2b19 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -440,14 +440,6 @@ void md_flush_request(struct mddev *mddev, struct bio *bio)
 }
 EXPORT_SYMBOL(md_flush_request);
 
-void md_unplug(struct blk_plug_cb *cb, bool from_schedule)
-{
-	struct mddev *mddev = cb->data;
-	md_wakeup_thread(mddev->thread);
-	kfree(cb);
-}
-EXPORT_SYMBOL(md_unplug);
-
 static inline struct mddev *mddev_get(struct mddev *mddev)
 {
 	atomic_inc(&mddev->active);