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Message-ID: <tip-0754445d71c37a7afd4f0790a9be4cf53c1b8cc4@git.kernel.org> Date: Wed, 1 Feb 2017 02:08:54 -0800 From: tip-bot for Davidlohr Bueso <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: dave@...olabs.net, hpa@...or.com, dbueso@...e.de, linux-kernel@...r.kernel.org, mingo@...nel.org, longman@...hat.com, tglx@...utronix.de Subject: [tip:locking/core] sched/wake_q: Clarify queue reinit comment Commit-ID: 0754445d71c37a7afd4f0790a9be4cf53c1b8cc4 Gitweb: http://git.kernel.org/tip/0754445d71c37a7afd4f0790a9be4cf53c1b8cc4 Author: Davidlohr Bueso <dave@...olabs.net> AuthorDate: Sun, 29 Jan 2017 07:15:31 -0800 Committer: Ingo Molnar <mingo@...nel.org> CommitDate: Wed, 1 Feb 2017 10:02:18 +0100 sched/wake_q: Clarify queue reinit comment As of: bcc9a76d5ac ("locking/rwsem: Reinit wake_q after use") the comment regarding the list reinitialization no longer applies, update it with the new wake_q_init() helper. Signed-off-by: Davidlohr Bueso <dbueso@...e.de> Acked-by: Waiman Long <longman@...hat.com> Cc: peterz@...radead.org Cc: longman@...hat.com Cc: akpm@...ux-foundation.org Cc: paulmck@...ux.vnet.ibm.com Cc: torvalds@...ux-foundation.org Link: http://lkml.kernel.org/r/20170129151531.GA2444@linux-80c1.suse Signed-off-by: Ingo Molnar <mingo@...nel.org> --- include/linux/sched.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 4e62b37..1cc0ded 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1000,8 +1000,8 @@ enum cpu_idle_type { * * The DEFINE_WAKE_Q macro declares and initializes the list head. * wake_up_q() does NOT reinitialize the list; it's expected to be - * called near the end of a function, where the fact that the queue is - * not used again will be easy to see by inspection. + * called near the end of a function. Otherwise, the list can be + * re-initialized for later re-use by wake_q_init(). * * Note that this can cause spurious wakeups. schedule() callers * must ensure the call is done inside a loop, confirming that the
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