From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752788AbbDBDdm (ORCPT ); Wed, 1 Apr 2015 23:33:42 -0400 Received: from mail113-248.mail.alibaba.com ([205.204.113.248]:57689 "EHLO us-alimail-mta1.hst.scl.en.alidc.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752505AbbDBDdk (ORCPT ); Wed, 1 Apr 2015 23:33:40 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R601e4;FP=0|-1|-1|-1|0|-1|-1|-1;HT=r46d02011;MF=hillf.zj@alibaba-inc.com;PH=DS;RN=4;RT=4;SR=0; Reply-To: "Hillf Danton" From: "Hillf Danton" To: "'Marcelo Tosatti'" Cc: "'Luiz Capitulino'" , "linux-kernel" , "Hillf Danton" References: <042301d06cf5$2ec7ae90$8c570bb0$@alibaba-inc.com> In-Reply-To: <042301d06cf5$2ec7ae90$8c570bb0$@alibaba-inc.com> Subject: Re: kernel/timer: avoid spurious ksoftirqd wakeups Date: Thu, 02 Apr 2015 11:32:49 +0800 Message-ID: <042701d06cf5$b243a7b0$16caf710$@alibaba-inc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQF1AKszP4DTNPWpBjadtFu1uS3teZ3v6RsA Content-Language: zh-cn Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > --- a/kernel/time/tick-sched.c > +++ b/kernel/time/tick-sched.c > @@ -568,6 +568,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, > unsigned long rcu_delta_jiffies; > struct clock_event_device *dev = __this_cpu_read(tick_cpu_device.evtdev); > u64 time_delta; > + bool raise_softirq; > s/raise_softirq/raise_softirq = false/ ? > time_delta = timekeeping_max_deferment(); >