Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp1280866pxj; Fri, 4 Jun 2021 10:15:05 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwS/jGzmZnE91zn5dbt9qgzNlGOFsuPxBq7fqjhCq/aeMB9DZMsQt8uHU8v15fLxNZTqvI7 X-Received: by 2002:a05:6402:4c5:: with SMTP id n5mr5751590edw.322.1622826905431; Fri, 04 Jun 2021 10:15:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1622826905; cv=none; d=google.com; s=arc-20160816; b=t38m/Xg6TL0lML4L5fuUoUEo9LJ14wousDP9n6VLYixtP50HrP3ueBv4C6FkIP4gXT rGPtXB+Y9Bcnj71vCIpR18Xcdvcxz6fA2iaFyGLZn2CqKNeBkFqjE/DZIkFJj3NcxeKA Z8NxQDE7Y73SoNQ8Ceh67ijPWh5EBEM4u10shcVF9PrtU5fEtR1uol/8tVNQjY+Hwf3C 0v7ZSMqrmRI/3N8h1NhPZjk6c7dQp7exvEynEGObVnR0XVwheY4Y+0z4dD31W95hESho 3tvgnwPvsH5m631T+GGn8LEJR0eELSx33pPLmiCg+2mZghkQd3LRdKmiuV0oZoSU5buS M9bg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from; bh=OhoQq2D9vcBc0jV11QZWzcrqcrJ9eDNj5fivRZmG6Jw=; b=TwUBInJoceMgLCktKAQE9GJPy9n6RlkPTsJpqRwxqFmyXyq7RxscQgHd36WWw+RTVl oles1y7BrLanh+4InQKsqKfwpv0etHdZdlTTRMSiEUzyINNikxDujIRYff//pCGgBlWO hFyFOM+vXHvl4BZYJCo/O+LeO36dT9Ym42CQjrxHWIEEB0B9nPzo+UHwVAYL47GDa6On rhhGoAITQQ3I55wU4Aq3tlDWYTbKzS37e7k7SxSynjMa4OX7HFHaF8ErGruPksR7AGzV MlEMghu3Vq2DhnBkdQyPi1Z3OzsOawiRPBAQ/ninKHAKPXTn+RgI7DyM6t2Xl+OekFT2 7AHg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id d5si4934465ejo.627.2021.06.04.10.14.41; Fri, 04 Jun 2021 10:15:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230494AbhFDROJ (ORCPT + 99 others); Fri, 4 Jun 2021 13:14:09 -0400 Received: from foss.arm.com ([217.140.110.172]:43898 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230149AbhFDROJ (ORCPT ); Fri, 4 Jun 2021 13:14:09 -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 B1A251063; Fri, 4 Jun 2021 10:12:22 -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 12A6C3F73D; Fri, 4 Jun 2021 10:12:19 -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 10/19] sched: Split the guts of sched_setaffinity() into a helper function In-Reply-To: <20210602164719.31777-11-will@kernel.org> References: <20210602164719.31777-1-will@kernel.org> <20210602164719.31777-11-will@kernel.org> Date: Fri, 04 Jun 2021 18:12:17 +0100 Message-ID: <871r9heeq6.mognet@arm.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/06/21 17:47, Will Deacon wrote: > In preparation for replaying user affinity requests using a saved mask, > split sched_setaffinity() up so that the initial task lookup and > security checks are only performed when the request is coming directly > from userspace. > > Signed-off-by: Will Deacon Reviewed-by: Valentin Schneider