From patchwork Mon Mar 6 20:08:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Waiman Long X-Patchwork-Id: 13162300 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F4F8C6FD1A for ; Mon, 6 Mar 2023 20:10:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230328AbjCFUKS (ORCPT ); Mon, 6 Mar 2023 15:10:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230295AbjCFUKQ (ORCPT ); Mon, 6 Mar 2023 15:10:16 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90A2D4AFEE for ; Mon, 6 Mar 2023 12:09:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678133370; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=TktQ7QJRxbBjz+L1F60GxDGA9dvv+g9tZaNVQ0g9JWA=; b=VqrvHAkQcfJTzGmXrEyX7QYKQeW/VGUYaIPWtD/+3uTkIrXjNwSK8IsVY71C99T/bvQ+bb y8g1k7Wo5qZF84TYXwilNf/v0DajUaSBJVdXKIgqGkUNkhlX4b00capGXkJiTy576pvL1w 5n1SIhYYP6yVOCV3mCjy4H/rK0ztj5A= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-659-Bza0R6gzPryCu47XHWAv5Q-1; Mon, 06 Mar 2023 15:09:26 -0500 X-MC-Unique: Bza0R6gzPryCu47XHWAv5Q-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1B5E18027FD; Mon, 6 Mar 2023 20:09:26 +0000 (UTC) Received: from llong.com (dhcp-17-153.bos.redhat.com [10.18.17.153]) by smtp.corp.redhat.com (Postfix) with ESMTP id AE4B240C83B6; Mon, 6 Mar 2023 20:09:25 +0000 (UTC) From: Waiman Long To: Tejun Heo , Zefan Li , Johannes Weiner , Shuah Khan Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Will Deacon , Peter Zijlstra , Waiman Long Subject: [PATCH 0/5] cgroup/cpuset: Miscellaneous updates Date: Mon, 6 Mar 2023 15:08:44 -0500 Message-Id: <20230306200849.376804-1-longman@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org This patch series includes miscellaneous update to the cpuset and its testing code. Patch 2 is actually a follow-up of commit 3fb906e7fabb ("cgroup/cpuset: Don't filter offline CPUs in cpuset_cpus_allowed() for top cpuset tasks"). Patches 3-4 are for handling corner cases when dealing with task_cpu_possible_mask(). Waiman Long (5): cgroup/cpuset: Skip task update if hotplug doesn't affect current cpuset cgroup/cpuset: Include offline CPUs when tasks' cpumasks in top_cpuset are updated cgroup/cpuset: Find another usable CPU if none found in current cpuset cgroup/cpuset: Add CONFIG_DEBUG_CPUSETS config for cpuset testing cgroup/cpuset: Minor updates to test_cpuset_prs.sh init/Kconfig | 5 + kernel/cgroup/cpuset.c | 155 +++++++++++++++++- .../selftests/cgroup/test_cpuset_prs.sh | 25 +-- 3 files changed, 165 insertions(+), 20 deletions(-)