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>

drivers/md/md.c

@@ -2335,7 +2335,7 @@ static void export_array(struct mddev *mddev)
 
 static bool set_in_sync(struct mddev *mddev)
 {
-	WARN_ON_ONCE(NR_CPUS != 1 && !spin_is_locked(&mddev->lock));
+	lockdep_assert_held(&mddev->lock);
 	if (!mddev->in_sync) {
 		mddev->sync_checkers++;
 		spin_unlock(&mddev->lock);
@@ -6749,7 +6749,7 @@ static int set_array_info(struct mddev *mddev, mdu_array_info_t *info)
 
 void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors)
 {
-	WARN(!mddev_is_locked(mddev), "%s: unlocked mddev!\n", __func__);
+	lockdep_assert_held(&mddev->reconfig_mutex);
 
 	if (mddev->external_size)
 		return;

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);

drivers/md/raid5-cache.c

@@ -539,7 +539,7 @@ static void r5l_log_run_stripes(struct r5l_log *log)
 {
 	struct r5l_io_unit *io, *next;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	list_for_each_entry_safe(io, next, &log->running_ios, log_sibling) {
 		/* don't change list order */
@@ -555,7 +555,7 @@ static void r5l_move_to_end_ios(struct r5l_log *log)
 {
 	struct r5l_io_unit *io, *next;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	list_for_each_entry_safe(io, next, &log->running_ios, log_sibling) {
 		/* don't change list order */
@@ -1200,7 +1200,7 @@ static void r5l_run_no_mem_stripe(struct r5l_log *log)
 {
 	struct stripe_head *sh;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	if (!list_empty(&log->no_mem_stripes)) {
 		sh = list_first_entry(&log->no_mem_stripes,
@@ -1216,7 +1216,7 @@ static bool r5l_complete_finished_ios(struct r5l_log *log)
 	struct r5l_io_unit *io, *next;
 	bool found = false;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	list_for_each_entry_safe(io, next, &log->finished_ios, log_sibling) {
 		/* don't change list order */
@@ -1388,7 +1388,7 @@ static void r5c_flush_stripe(struct r5conf *conf, struct stripe_head *sh)
 	 * raid5_release_stripe() while holding conf->device_lock
 	 */
 	BUG_ON(test_bit(STRIPE_ON_RELEASE_LIST, &sh->state));
-	assert_spin_locked(&conf->device_lock);
+	lockdep_assert_held(&conf->device_lock);
 
 	list_del_init(&sh->lru);
 	atomic_inc(&sh->count);
@@ -1415,7 +1415,7 @@ void r5c_flush_cache(struct r5conf *conf, int num)
 	int count;
 	struct stripe_head *sh, *next;
 
-	assert_spin_locked(&conf->device_lock);
+	lockdep_assert_held(&conf->device_lock);
 	if (!conf->log)
 		return;