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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,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 0A1FCC4743D for ; Fri, 4 Jun 2021 17:12:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E350161405 for ; Fri, 4 Jun 2021 17:12:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229913AbhFDRN4 (ORCPT ); Fri, 4 Jun 2021 13:13:56 -0400 Received: from foss.arm.com ([217.140.110.172]:43866 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230386AbhFDRN4 (ORCPT ); Fri, 4 Jun 2021 13:13:56 -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 924721063; Fri, 4 Jun 2021 10:12:09 -0700 (PDT) Received: from e113632-lin (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E1CA63F73D; Fri, 4 Jun 2021 10:12:06 -0700 (PDT) From: Valentin Schneider To: Will Deacon , linux-arm-kernel@lists.infradead.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Will Deacon , Catalin Marinas , Marc Zyngier , Greg Kroah-Hartman , Peter Zijlstra , Morten Rasmussen , Qais Yousef , Suren Baghdasaryan , Quentin Perret , Tejun Heo , Johannes Weiner , Ingo Molnar , Juri Lelli , Vincent Guittot , "Rafael J. Wysocki" , Dietmar Eggemann , Daniel Bristot de Oliveira , kernel-team@android.com Subject: Re: [PATCH v8 09/19] sched: Introduce task_struct::user_cpus_ptr to track requested affinity In-Reply-To: <20210602164719.31777-10-will@kernel.org> References: <20210602164719.31777-1-will@kernel.org> <20210602164719.31777-10-will@kernel.org> Date: Fri, 04 Jun 2021 18:12:04 +0100 Message-ID: <8735txeeqj.mognet@arm.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On 02/06/21 17:47, Will Deacon wrote: > In preparation for saving and restoring the user-requested CPU affinity > mask of a task, add a new cpumask_t pointer to 'struct task_struct'. > > If the pointer is non-NULL, then the mask is copied across fork() and > freed on task exit. > > Signed-off-by: Will Deacon Reviewed-by: Valentin Schneider