Received: by 2002:a25:d7c1:0:0:0:0:0 with SMTP id o184csp1670541ybg; Wed, 23 Oct 2019 20:56:15 -0700 (PDT) X-Google-Smtp-Source: APXvYqyR680PLeLS19RhgdAPf+HvFGyugVy+omLkMmxNSuvtLRlBlGff+3wOMfamTdLDl3EYqNiO X-Received: by 2002:a17:906:3385:: with SMTP id v5mr35688734eja.154.1571889375327; Wed, 23 Oct 2019 20:56:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1571889375; cv=none; d=google.com; s=arc-20160816; b=ENIt7i65mmdrfEMP57xn5xAW36BPDJKYYer9p/yqs6FtTQcl4WkLuvZzAsY4dhmnyZ ycwEgm7wzjNyuPHrkVZ9BwX96KIJ8U+RI8OEKmUhicp3av8JsAfXkut8+pxBskTya0wF INqr/UCutIcKSkBx8Vg+Lh/GeBMMZVVKqy2wSlN3QcjDxmfV/Qmm5m6MzuyrUSSunHJi +T7lMrAQb9C+qitVverk48798wcq/54AUxUfWkv9NwXB2MDpJDj8pDO1Qo9ivQiUP7D+ Xi1G7DiPUgYaSbTCkomx8dEJatwrPWoxKBQf80A32YfsJvLtUY0GyA4Nrq1jlKIaYBbg /ncA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=ygzPh0oak0ceqKDDt4aSCy1o8wz0oxRdfiYfy0zLjWs=; b=Os4iWoshunjKCa8hgTxklmpAg7fJQsyAlOJ6Yad5RR9QRH3hvWofncMm7MA/Rdba5J nvy9oReRUE1hOchBBsbUbEYVBDP5yoAhUcrVyNTSYIX+EnwyMcun4ODASG8DxsPomsdc WbdtJ+aB4zai2fDXcypoBnmTzfE1ddjegMQvgbOqwoS7mJJvbJIdwoYqydfy16nzE77B pf4DGLvPdoa57N/l3d/aAvd7lj6+zIg2R2jDh8DMnFQl0FfdEK11gBLoy46WjQ51vE+C 4D1qmpgdMOX/oTlo0vw+seNW9zI8D1W4aJA/pygwdOrPaw95VuFnTz+kfCREdMb2iCFp t5Lg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id jr17si148874ejb.325.2019.10.23.20.55.51; Wed, 23 Oct 2019 20:56:15 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406796AbfJWPiq (ORCPT + 99 others); Wed, 23 Oct 2019 11:38:46 -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