diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8ff690ac6247ab1e0ab845ff75f407960973f102..1b3316c79b7b7fd34502119165c749d4299ed01b 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -528,11 +528,15 @@ void mddev_suspend(struct mddev *mddev)
 	wait_event(mddev->sb_wait, !test_bit(MD_UPDATING_SB, &mddev->flags));
 
 	del_timer_sync(&mddev->safemode_timer);
+	/* restrict memory reclaim I/O during raid array is suspend */
+	mddev->noio_flag = memalloc_noio_save();
 }
 EXPORT_SYMBOL_GPL(mddev_suspend);
 
 void mddev_resume(struct mddev *mddev)
 {
+	/* entred the memalloc scope from mddev_suspend() */
+	memalloc_noio_restore(mddev->noio_flag);
 	lockdep_assert_held(&mddev->reconfig_mutex);
 	if (--mddev->suspended)
 		return;
diff --git a/drivers/md/md.h b/drivers/md/md.h
index acd681939112fe1440e2df53465d10348aa50758..612814d07d35ab020fc3a508e14cf29f4ca5fe28 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -497,6 +497,7 @@ struct mddev {
 	void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
 	struct md_cluster_info		*cluster_info;
 	unsigned int			good_device_nr;	/* good device num within cluster raid */
+	unsigned int			noio_flag; /* for memalloc scope API */
 
 	bool	has_superblocks:1;
 	bool	fail_last_dev:1;