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Groups > linux.kernel > #1344713
| Path | csiph.com!news.mixmin.net!aioe.org!gothmog.csi.it!bofh.it!news.nic.it!robomod |
|---|---|
| From | Steven Rostedt <rostedt@goodmis.org> |
| Newsgroups | linux.kernel |
| Subject | [PATCH RT 04/10] rtmutex: Use chainwalking control enum |
| Date | Fri, 26 Feb 2016 22:40:04 +0100 |
| Message-ID | <r6yhe-RJ-55@gated-at.bofh.it> (permalink) |
| References | <r6yhc-RJ-19@gated-at.bofh.it> |
| User-Agent | quilt/0.61-1 |
| MIME-Version | 1.0 |
| Content-Type | text/plain; charset=ISO-8859-15 |
| Content-Disposition | inline; filename=0004-rtmutex-Use-chainwalking-control-enum.patch |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 35 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | Thomas Gleixner <tglx@linutronix.de>, Carsten Emde <C.Emde@osadl.org>, Sebastian Andrzej Siewior <bigeasy@linutronix.de>, John Kacur <jkacur@redhat.com>, Paul Gortmaker <paul.gortmaker@windriver.com>, Brad Mouring <brad.mouring@ni.com> |
| X-Original-Date | Fri, 26 Feb 2016 16:35:55 -0500 |
| X-Original-Message-ID | <20160226213708.749464933@goodmis.org> |
| X-Original-References | <20160226213551.557375746@goodmis.org> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1344713 |
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3.14.61-rt63-rc1 stable review patch.
If anyone has any objections, please let me know.
------------------
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 2f61c66d6f05..4bd9790dece5 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1251,7 +1251,7 @@ 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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[PATCH RT 00/10] Linux 3.14.61-rt63-rc1 Steven Rostedt <rostedt@goodmis.org> - 2016-02-26 22:40 +0100 [PATCH RT 04/10] rtmutex: Use chainwalking control enum Steven Rostedt <rostedt@goodmis.org> - 2016-02-26 22:40 +0100 [PATCH RT 05/10] dump stack: dont disable preemption during trace Steven Rostedt <rostedt@goodmis.org> - 2016-02-26 22:40 +0100 [PATCH RT 02/10] ARM: smp: Move clear_tasks_mm_cpumask() call to __cpu_die() Steven Rostedt <rostedt@goodmis.org> - 2016-02-26 22:50 +0100 [PATCH RT 10/10] Linux 3.14.61-rt63-rc1 Steven Rostedt <rostedt@goodmis.org> - 2016-02-26 22:50 +0100 [PATCH RT 08/10] irqwork: Move irq safe work to irq context Steven Rostedt <rostedt@goodmis.org> - 2016-02-26 23:40 +0100
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