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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-31 03:48:48 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-31 03:48:48 +0100
commit2df4f26167ab6adc7d2648f57f433ff461965fc8 (patch)
tree3f583ae3f4b4f8b81046c75cd4f882a03c44b13a /drivers
parentMerge tag 'gpio-fixes-v3.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/... (diff)
parentMD RAID10: Fix oops when creating RAID10 arrays via dm-raid.c (diff)
downloadlinux-2df4f26167ab6adc7d2648f57f433ff461965fc8.tar.xz
linux-2df4f26167ab6adc7d2648f57f433ff461965fc8.zip
Merge tag 'md-3.7-fixes' of git://neil.brown.name/md
Pull md fixes from NeilBrown: "Some fixes for md in 3.7 - one recently introduced crash for dm-raid10 with discard - one bug in new functionality that has been around for a few releases. - minor bug in md's 'faulty' personality and UAPI disintegration for md." * tag 'md-3.7-fixes' of git://neil.brown.name/md: MD RAID10: Fix oops when creating RAID10 arrays via dm-raid.c md/raid1: Fix assembling of arrays containing Replacements. md faulty: use disk_stack_limits() UAPI: (Scripted) Disintegrate include/linux/raid
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/faulty.c5
-rw-r--r--drivers/md/raid1.c2
-rw-r--r--drivers/md/raid10.c15
3 files changed, 14 insertions, 8 deletions
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index 45135f69509c..5e7dc772f5de 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -315,8 +315,11 @@ static int run(struct mddev *mddev)
}
conf->nfaults = 0;
- rdev_for_each(rdev, mddev)
+ rdev_for_each(rdev, mddev) {
conf->rdev = rdev;
+ disk_stack_limits(mddev->gendisk, rdev->bdev,
+ rdev->data_offset << 9);
+ }
md_set_array_sectors(mddev, faulty_size(mddev, 0, 0));
mddev->private = conf;
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 8034fbd6190c..636bae0405e8 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2710,7 +2710,7 @@ static struct r1conf *setup_conf(struct mddev *mddev)
|| disk_idx < 0)
continue;
if (test_bit(Replacement, &rdev->flags))
- disk = conf->mirrors + conf->raid_disks + disk_idx;
+ disk = conf->mirrors + mddev->raid_disks + disk_idx;
else
disk = conf->mirrors + disk_idx;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 906ccbd0f7dc..d1295aff4173 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",