Messages in this thread Patch in this message | | | Date | Fri, 26 Feb 2016 16:32:41 -0500 | From | Steven Rostedt <> | Subject | [PATCH RT 06/12] rtmutex: Use chainwalking control enum |
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3.18.27-rt26-rc1 stable review patch. If anyone has any objections, please let me know.
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From: "bmouring@ni.com" <bmouring@ni.com>
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.
Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Brad Mouring <brad.mouring@ni.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- 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 c1b7d5b1be7e..8d950b4521fc 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(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 (;;) { -- 2.7.0
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