Commit 01b5d32a authored by Guoqing Jiang's avatar Guoqing Jiang Committed by Song Liu
Browse files

raid5-cache: hold spinlock instead of mutex in r5c_journal_mode_show 



Replace mddev_lock with spin_lock to align with other show methods in
raid5_attrs.

Signed-off-by: default avatarGuoqing Jiang <guoqing.jiang@cloud.ionos.com>
Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
parent b3db8a21

drivers/md/raid5-cache.c

+3 −6
Original line number Diff line number Diff line
@@ -2537,13 +2537,10 @@ static ssize_t r5c_journal_mode_show(struct mddev *mddev, char *page) 
	struct r5conf *conf;

	int ret;



	ret = mddev_lock(mddev);

	if (ret)

		return ret;



	spin_lock(&mddev->lock);

	conf = mddev->private;

	if (!conf || !conf->log) {

		mddev_unlock(mddev);

		spin_unlock(&mddev->lock);

		return 0;

	}
@@ -2563,7 +2560,7 @@ static ssize_t r5c_journal_mode_show(struct mddev *mddev, char *page) 
	default:

		ret = 0;

	}

	mddev_unlock(mddev);

	spin_unlock(&mddev->lock);

	return ret;

}