On Tue, 2016-05-03 at 19:42 +0200, hei...@redhat.com wrote:
> From: Heinz Mauelshagen <hei...@redhat.com>
>
> In case md runs underneath the dm-raid target, the mddev does not
> have a request queue or gendisk, thus avoid accesses to it.
>
> This patch adds two missing conditionals to the raid10 personality.
-EWRONGLIST. drivers/md is handled by linux-r...@vger.kernel.org
James
>
> Signed-of-by: Heinz Mauelshagen <hei...@redhat.com>
>
> ---
> drivers/md/raid10.c | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
> index e3fd725..84e24e6 100644
> --- a/drivers/md/raid10.c
> +++ b/drivers/md/raid10.c
> @@ -3782,8 +3782,10 @@ static int raid10_resize(struct mddev *mddev,
> sector_t sectors)
> return ret;
> }
> md_set_array_sectors(mddev, size);
> - set_capacity(mddev->gendisk, mddev->array_sectors);
> - revalidate_disk(mddev->gendisk);
> + if (mddev->queue) {
> + set_capacity(mddev->gendisk, mddev->array_sectors);
> + revalidate_disk(mddev->gendisk);
> + }
> if (sectors > mddev->dev_sectors &&
> mddev->recovery_cp > oldsize) {
> mddev->recovery_cp = oldsize;
> @@ -4593,8 +4595,10 @@ static void raid10_finish_reshape(struct mddev
> *mddev)
> set_bit(MD_RECOVERY_NEEDED, &mddev
> ->recovery);
> }
> mddev->resync_max_sectors = size;
> - set_capacity(mddev->gendisk, mddev->array_sectors);
> - revalidate_disk(mddev->gendisk);
> + if (mddev->queue) {
> + set_capacity(mddev->gendisk, mddev
> ->array_sectors);
> + revalidate_disk(mddev->gendisk);
> + }
> } else {
> int d;
> for (d = conf->geo.raid_disks ;
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