Commit fe67d19a authored May 03, 2016 by Heinz Mauelshagen Committed by Shaohua Li May 09, 2016

md: raid5: add prerequisite to run underneath dm-raid



In case md runs underneath the dm-raid target, the mddev does not have
a request queue or gendisk, thus avoid accesses.

This patch adds a missing conditional to the raid5 personality.

Signed-of-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Shaohua Li <shli@fb.com>

parent 859644f0

drivers/md/raid5.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -7572,8 +7572,10 @@ static void raid5_finish_reshape(struct mddev *mddev)

		if (mddev->delta_disks > 0) {
		md_set_array_sectors(mddev, raid5_size(mddev, 0, 0));
		if (mddev->queue) {
		set_capacity(mddev->gendisk, mddev->array_sectors);
		revalidate_disk(mddev->gendisk);
		}
		} else {
		int d;
		spin_lock_irq(&conf->device_lock);