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authorThomas Gleixner <tglx@linutronix.de>2011-11-14 23:06:09 +0100
committerClark Williams <williams@redhat.com>2012-04-13 11:01:52 -0500
commit190d9c732f8f5059079bcb2a36b456c6fa6390d1 (patch)
treeaadc60b03d56ca5786338b84f364ecd04d8eb495
parent73bcb59a74628669837115767a853f5db2ce2295 (diff)
dm: Make rt aware
Use the BUG_ON_NORT variant for the irq_disabled() checks. RT has interrupts legitimately enabled here as we cant deadlock against the irq thread due to the "sleeping spinlocks" conversion. Reported-by: Luis Claudio R. Goncalves <lclaudio@uudg.org> Cc: stable-rt@vger.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--drivers/md/dm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index e24143cc2040..ad7d7e306c18 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1648,14 +1648,14 @@ static void dm_request_fn(struct request_queue *q)
if (map_request(ti, clone, md))
goto requeued;
- BUG_ON(!irqs_disabled());
+ BUG_ON_NONRT(!irqs_disabled());
spin_lock(q->queue_lock);
}
goto out;
requeued:
- BUG_ON(!irqs_disabled());
+ BUG_ON_NONRT(!irqs_disabled());
spin_lock(q->queue_lock);
delay_and_out: