linux-kernel - [patch 13/14] locking/rtmutex: Fix misleading comment in rt_mutex

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Message-Id: <20210323213708.809432652@linutronix.de>
Date:   Tue, 23 Mar 2021 22:30:32 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: [patch 13/14] locking/rtmutex: Fix misleading comment in
 rt_mutex_postunlock()

Preemption is disabled in mark_wakeup_next_waiter() not in
rt_mutex_slowunlock().

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 kernel/locking/rtmutex.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1305,7 +1305,7 @@ void __sched rt_mutex_postunlock(struct
 {
 	wake_up_q(wake_q);
 
-	/* Pairs with preempt_disable() in rt_mutex_slowunlock() */
+	/* Pairs with preempt_disable() in mark_wakeup_next_waiter() */
 	preempt_enable();
 }