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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 8CD21C1B0F2 for ; Wed, 20 Jun 2018 12:51:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 39A3420846 for ; Wed, 20 Jun 2018 12:51:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 39A3420846 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lge.com 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 S932225AbeFTMvr (ORCPT ); Wed, 20 Jun 2018 08:51:47 -0400 Received: from lgeamrelo11.lge.com ([156.147.23.51]:35191 "EHLO lgeamrelo11.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753475AbeFTMvq (ORCPT ); Wed, 20 Jun 2018 08:51:46 -0400 Received: from unknown (HELO lgeamrelo02.lge.com) (156.147.1.126) by 156.147.23.51 with ESMTP; 20 Jun 2018 21:51:43 +0900 X-Original-SENDERIP: 156.147.1.126 X-Original-MAILFROM: byungchul.park@lge.com Received: from unknown (HELO X58A-UD3R) (10.177.222.33) by 156.147.1.126 with ESMTP; 20 Jun 2018 21:51:43 +0900 X-Original-SENDERIP: 10.177.222.33 X-Original-MAILFROM: byungchul.park@lge.com Date: Wed, 20 Jun 2018 21:51:42 +0900 From: Byungchul Park To: Byungchul Park , peterz@infradead.org, mingo@kernel.org Cc: Steven Rostedt , Peter Zijlstra , Ingo Molnar , Thomas Gleixner , Dario Faggioli , linux-kernel@vger.kernel.org, Juri Lelli , bristot@redhat.com, kernel-team@lge.com, Joel Fernandes Subject: Re: [RESEND PATCH v12 2/2] sched/rt: Add support for SD_PREFER_SIBLING on find_lowest_rq() Message-ID: <20180620125142.GA21889@X58A-UD3R> References: <1529297889-24551-1-git-send-email-byungchul.park@lge.com> <1529297889-24551-3-git-send-email-byungchul.park@lge.com> <20180618174203.4a1b4cf0@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 19, 2018 at 02:16:36PM +0900, Byungchul Park wrote: > On Tue, Jun 19, 2018 at 6:42 AM, Steven Rostedt wrote: > > On Mon, 18 Jun 2018 13:58:09 +0900 > > Byungchul Park wrote: > > > >> Hello Steven, > >> > >> I've changed the code a little bit to avoid a compile warning caused by > >> 'const' args of find_cpu(). Can I keep your Reviewed-by? > >> > >> BEFORE: > >> static int find_cpu(const struct cpumask *mask, > >> const struct sched_domain *sd, > >> const struct sched_domain *prefer) > >> > >> AFTER: > >> static int find_cpu(const struct cpumask *mask, > >> struct sched_domain *sd, > >> struct sched_domain *prefer) > >> > >> (I temporarily removed the Reviewed-by you gave me.) > >> Reviewed-by: Steven Rostedt (VMware) > > > > I would fix sched_domain_span() to take a constant and keep the > > previous patch. > > Right. I also considered it like you and asked it here: > > https://lkml.org/lkml/2018/1/11/106 > > But I didn't get any answer so tried to keep sched_domain_span() > unchanged conservatively. > > Peterz, what's your opinion? Peterz and Ingo, I cannot progress forward without your opinion. Please your opinion. > > -- Steve > > -- > Thanks, > Byungchul