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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 BC99DCA9EB6 for ; Wed, 23 Oct 2019 15:38:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9A7C12086D for ; Wed, 23 Oct 2019 15:38:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406800AbfJWPir (ORCPT ); Wed, 23 Oct 2019 11:38:47 -0400 Received: from [217.140.110.172] ([217.140.110.172]:55190 "EHLO foss.arm.com" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S2403912AbfJWPip (ORCPT ); Wed, 23 Oct 2019 11:38:45 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A714A3E8; Wed, 23 Oct 2019 08:38:25 -0700 (PDT) Received: from e113632-lin.cambridge.arm.com (e113632-lin.cambridge.arm.com [10.1.194.37]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 127083F718; Wed, 23 Oct 2019 08:38:23 -0700 (PDT) From: Valentin Schneider To: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org Cc: lizefan@huawei.com, tj@kernel.org, hannes@cmpxchg.org, mingo@kernel.org, peterz@infradead.org, vincent.guittot@linaro.org, Dietmar.Eggemann@arm.com, morten.rasmussen@arm.com, qperret@google.com Subject: [PATCH v4 0/2] sched/topology: Asymmetric topologies fixes Date: Wed, 23 Oct 2019 16:37:43 +0100 Message-Id: <20191023153745.19515-1-valentin.schneider@arm.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I got a nice splat while testing out the toggling of sched_asym_cpucapacity, so this is a cpuset fix plus a topology patch. Details are in the logs. v2 changes: - Use static_branch_{inc,dec} rather than enable/disable v3 changes: - New patch: add fix for empty cpumap in sched domain rebuild - Move static_branch_dec outside of RCU read-side section (Quentin) v4 changes: - Patch 1/2: Directly tweak the cpuset array (Dietmar) - Patch 2/2: Add an example to the changelog (Dietmar) Cheers, Valentin Valentin Schneider (2): sched/topology: Don't try to build empty sched domains sched/topology: Allow sched_asym_cpucapacity to be disabled kernel/cgroup/cpuset.c | 3 ++- kernel/sched/topology.c | 11 +++++++++-- 2 files changed, 11 insertions(+), 3 deletions(-) -- 2.22.0