From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755842AbcIRB7h (ORCPT ); Sat, 17 Sep 2016 21:59:37 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:35470 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755050AbcIRB7L (ORCPT ); Sat, 17 Sep 2016 21:59:11 -0400 Subject: Re: [PATCH v2] sched/core: remove unnecessary initialization in sched_init() To: peterz@infradead.org References: <1473819536-7398-1-git-send-email-cs.os.kernel@gmail.com> <1473819782-7650-1-git-send-email-cs.os.kernel@gmail.com> Cc: mingo@redhat.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org From: Cheng Chao Message-ID: Date: Sun, 18 Sep 2016 09:59:08 +0800 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:45.0) Gecko/20100101 Thunderbird/45.0 MIME-Version: 1.0 In-Reply-To: <1473819782-7650-1-git-send-email-cs.os.kernel@gmail.com> Content-Type: text/plain; charset=gbk Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Peter, Would you please review this patch? thanks. Cheng on 09/14/2016 10:23 AM, Cheng Chao wrote: > init_idle() is called immediately after current->sched_class > = &fair_sched_class, init_idle() sets current->sched_class > = &idle_sched_class. > > Signed-off-by: Cheng Chao > Cc: stable@vger.kernel.org > --- > kernel/sched/core.c | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index a0086a5..ed4f4fe 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -7557,11 +7557,6 @@ void __init sched_init(void) > enter_lazy_tlb(&init_mm, current); > > /* > - * During early bootup we pretend to be a normal task: > - */ > - current->sched_class = &fair_sched_class; > - > - /* > * Make us the idle thread. Technically, schedule() should not be > * called from this thread, however somewhere below it might be, > * but because we are the idle thread, we just pick up running again >