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Groups > linux.kernel > #1292628 > unrolled thread
| Started by | bmouring@ni.com |
|---|---|
| First post | 2015-12-16 00:10 +0100 |
| Last post | 2015-12-22 15:10 +0100 |
| Articles | 2 — 2 participants |
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[PATCH] rtmutex: Use chainwalking control enum bmouring@ni.com - 2015-12-16 00:10 +0100
Re: [PATCH] rtmutex: Use chainwalking control enum Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-12-22 15:10 +0100
| From | bmouring@ni.com |
|---|---|
| Date | 2015-12-16 00:10 +0100 |
| Subject | [PATCH] rtmutex: Use chainwalking control enum |
| Message-ID | <qG6Tg-2gv-19@gated-at.bofh.it> |
In 8930ed80 (rtmutex: Cleanup deadlock detector debug logic),
chainwalking control enums were introduced to limit the deadlock
detection logic. One of the calls to task_blocks_on_rt_mutex was
missed when converting to use the enums.
Signed-off-by: Brad Mouring <brad.mouring@ni.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
kernel/locking/rtmutex.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 2026759..e0b0d9b 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1008,7 +1008,7 @@ static void noinline __sched rt_spin_lock_slowlock(struct rt_mutex *lock)
__set_current_state_no_track(TASK_UNINTERRUPTIBLE);
pi_unlock(&self->pi_lock);
- ret = task_blocks_on_rt_mutex(lock, &waiter, self, 0);
+ ret = task_blocks_on_rt_mutex(lock, &waiter, self, RT_MUTEX_MIN_CHAINWALK);
BUG_ON(ret);
for (;;) {
--
2.6.4
--
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| From | Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
|---|---|
| Date | 2015-12-22 15:10 +0100 |
| Message-ID | <qIvNw-4Xf-11@gated-at.bofh.it> |
| In reply to | #1292628 |
* bmouring@ni.com | 2015-12-15 17:07:30 [-0600]: >In 8930ed80 (rtmutex: Cleanup deadlock detector debug logic), >chainwalking control enums were introduced to limit the deadlock >detection logic. One of the calls to task_blocks_on_rt_mutex was >missed when converting to use the enums. > >Signed-off-by: Brad Mouring <brad.mouring@ni.com> >Cc: Thomas Gleixner <tglx@linutronix.de> Applied Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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