diff options
| author | Heinz Mauelshagen <heinzm@redhat.com> | 2016-05-03 20:43:24 +0300 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2016-05-09 19:24:01 +0300 |
| commit | 859644f0fa2141b5f7db0e3744999ec3bb5719d3 (patch) | |
| tree | 22d69e0c48a8336b1a90583a02aae779ae6bb02d | |
| parent | 092398dce8c2406bfb0c9eebc3e764ff2ddb62a8 (diff) | |
| download | linux-859644f0fa2141b5f7db0e3744999ec3bb5719d3.tar.xz | |
md: raid10: 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 to it.
This patch adds two missing conditionals to the raid10 personality.
Signed-of-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Shaohua Li <shli@fb.com>
| -rw-r--r-- | drivers/md/raid10.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index e3fd725d5c4d..84e24e648165 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 ; |