From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D0A57C3279B for ; Fri, 6 Jul 2018 13:18:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D39823FCE for ; Fri, 6 Jul 2018 13:18:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="YrZanQE3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7D39823FCE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933535AbeGFNSO (ORCPT ); Fri, 6 Jul 2018 09:18:14 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:52378 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932995AbeGFNSN (ORCPT ); Fri, 6 Jul 2018 09:18:13 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=FzaIFqmy9HyI6WVp/xxC/w9D+V3hk3YdSEmirsC+VUg=; b=YrZanQE3tYJ6vvFcfIK+6dVjl dZAR3+wC6rETnwe86VSxbQ+n01OinLrsw/GepZnuFeaDl/5JDUJB9m/QmooSKwtM5XYGqqygr6t9r 2ZOKaJNd//fGGDk6ulRpODzzjOppWt+1sR12OSMyAiqwr95FUXffF648rd9GvEVr1v9F8s+s5BNLc NELL4SuCI4oE6zZKUpjU1YumuFwmnvxu7zFUnrHmqzNv4m1YIR+/QQJz6cmTjUVnqYYR42Wc4KlGC VmOnVROZMVX38ftGh7LDmwitPuK2Ays33dqhOc5oqIgjq2/DRnaN0fAM0jSnRT45vnmqUuLJ0Kywk SoWOlFsRA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fbQck-0004Xw-47; Fri, 06 Jul 2018 13:18:10 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 60A7220298BAE; Fri, 6 Jul 2018 15:18:08 +0200 (CEST) Date: Fri, 6 Jul 2018 15:18:08 +0200 From: Peter Zijlstra To: Sebastian Andrzej Siewior Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Thomas Gleixner Subject: Re: [PATCH] sched/core: remove get_cpu() from sched_fork() Message-ID: <20180706131808.GM2494@hirez.programming.kicks-ass.net> References: <20180706130615.g2ex2kmfu5kcvlq6@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180706130615.g2ex2kmfu5kcvlq6@linutronix.de> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 06, 2018 at 03:06:15PM +0200, Sebastian Andrzej Siewior wrote: > Based on this it is possible to remove get_cpu() and use > smp_processor_id() for the `cpu' variable without breaking anything. Almost.. I think, see init_task_preempt_count().