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dm-table: check BLK_FEAT_ATOMIC_WRITES inside limits_lock

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dm_set_device_limits() should check q->limits.features for
BLK_FEAT_ATOMIC_WRITES while holding q->limits_lock, like it does for
the rest of the queue limits.

Fixes: b7c18b17a1 ("dm-table: Set BLK_FEAT_ATOMIC_WRITES for target queue limits")
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Benjamin Marzinski
2025-05-30 10:50:32 -04:00
committed by Mikulas Patocka
parent 050a3e71ce
commit 85f6d5b729
1 changed files with 1 additions and 1 deletions
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drivers/md/dm-table.c
+1 -1
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@@ -430,13 +430,13 @@ static int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
return 0;
}
mutex_lock(&q->limits_lock);
/*
* BLK_FEAT_ATOMIC_WRITES is not inherited from the bottom device in
* blk_stack_limits(), so do it manually.
*/
limits->features |= (q->limits.features & BLK_FEAT_ATOMIC_WRITES);
mutex_lock(&q->limits_lock);
if (blk_stack_limits(limits, &q->limits,
get_start_sect(bdev) + start) < 0)
DMWARN("%s: adding target device %pg caused an alignment inconsistency: "