Messages in this thread Patch in this message | | | Date | Fri, 18 Nov 2011 23:45:14 -0500 | From | Steven Rostedt <> | Subject | [PATCH 4/5] dm: Make rt aware |
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From: Thomas Gleixner <tglx@linutronix.de>
Use the BUG_ON_NONRT 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> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- drivers/md/dm.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 41abc6d..67207d6 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1644,14 +1644,14 @@ 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: -- 1.7.7.1
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