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authorTejun Heo <tj@kernel.org>2012-11-06 12:26:23 -0800
committerTejun Heo <tj@kernel.org>2012-11-06 12:26:23 -0800
commit5b805f2a7675634fbdf9ac1c9b2256905ab2ea68 (patch)
treeee00d1e3d757458d66209b926d274491c6c3f61c /drivers/md/raid10.c
parent1db1e31b1ee3ae126ef98f39083b5f213c7b41bf (diff)
parent201e72acb2d3821e2de9ce6091e98859c316b29a (diff)
Merge branch 'cgroup/for-3.7-fixes' into cgroup/for-3.8
This is to receive device_cgroup fixes so that further device_cgroup changes can be made in cgroup/for-3.8. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/md/raid10.c')
-rw-r--r--drivers/md/raid10.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 906ccbd0f7d..d1295aff417 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1783,7 +1783,7 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
clear_bit(Unmerged, &rdev->flags);
}
md_integrity_add_rdev(rdev, mddev);
- if (blk_queue_discard(bdev_get_queue(rdev->bdev)))
+ if (mddev->queue && blk_queue_discard(bdev_get_queue(rdev->bdev)))
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);
print_conf(conf);
@@ -3613,11 +3613,14 @@ static int run(struct mddev *mddev)
discard_supported = true;
}
- if (discard_supported)
- queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);
- else
- queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, mddev->queue);
-
+ if (mddev->queue) {
+ if (discard_supported)
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
+ mddev->queue);
+ else
+ queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD,
+ mddev->queue);
+ }
/* need to check that every block has at least one working mirror */
if (!enough(conf, -1)) {
printk(KERN_ERR "md/raid10:%s: not enough operational mirrors.\n",