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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 7ECD4C433E7 for ; Fri, 9 Oct 2020 09:43:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2371522258 for ; Fri, 9 Oct 2020 09:43:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="UuXScQIS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730174AbgJIJnA (ORCPT ); Fri, 9 Oct 2020 05:43:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37198 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726211AbgJIJnA (ORCPT ); Fri, 9 Oct 2020 05:43:00 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DFFFC0613D2 for ; Fri, 9 Oct 2020 02:43:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.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; bh=+8KxmFD1hQOjYyhkKZ1N2Ke0gS4K0mbm35E+ed5u0Ag=; b=UuXScQIS6LT+LJ67qrGUHC6zMO TzA+nCxI6vZooKeeI4TzBkyrsHqjd+ruIzhnGAXAnrpADgji033hDbjeDe2tTWpthFSZr1G/3F9C6 gqCznZ9KP72gpBcMJJjOBpYorlf/PG2YasHaVkiHDfpmVuerXAMkkOvMZ4VSYe5p0aep1bE6qdWvv cQWC0B4R47Itb40TAcsVPdKqdQ2MUvsXGx/aUVY2ZwGjtlv+/Buas+3qZfZfEJ464UbS+eW9ddtFt NHxzXJWM0hgbCFjt/9SqZFcPNRKUORwchUGd5m7aFOoKAKVe8tQJNm0QHSfrtFkuUtSleV9sM8cQ1 wdU/Fy9A==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kQovJ-0004r8-3o; Fri, 09 Oct 2020 09:42:49 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 93E0F30008D; Fri, 9 Oct 2020 11:42:45 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 339C029E78790; Fri, 9 Oct 2020 11:42:45 +0200 (CEST) Date: Fri, 9 Oct 2020 11:42:45 +0200 From: Peter Zijlstra To: Michal Hocko Cc: Thomas Gleixner , Frederic Weisbecker , LKML , Mel Gorman , Ingo Molnar Subject: Re: [RFC PATCH] kernel: allow to configure PREEMPT_NONE, PREEMPT_VOLUNTARY on kernel command line Message-ID: <20201009094245.GG2628@hirez.programming.kicks-ass.net> References: <20201007120401.11200-1-mhocko@kernel.org> <20201009091218.GF4967@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201009091218.GF4967@dhcp22.suse.cz> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 09, 2020 at 11:12:18AM +0200, Michal Hocko wrote: > Is there any additional feedback? Should I split up the patch and repost > for inclusion? Maybe remove PREEMPT_NONE after that? Since that's then equivalent to building with VOLUNTARY and booting with preempt=none.