md: use lockdep_assert_held

lockdep_assert_held is a better way to assert lock held, and it works
for UP.

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

1 files changed, 0 insertions, 5 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 998b4ce1498f..7d6bcf0eba0c 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -500,11 +500,6 @@ static inline void mddev_lock_nointr(struct mddev *mddev)
 	mutex_lock(&mddev->reconfig_mutex);
 }
 
-static inline int mddev_is_locked(struct mddev *mddev)
-{
-	return mutex_is_locked(&mddev->reconfig_mutex);
-}
-
 static inline int mddev_trylock(struct mddev *mddev)
 {
 	return mutex_trylock(&mddev->reconfig_mutex);