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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id E35DEC433F5 for ; Sat, 23 Apr 2022 14:01:45 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 256E96B0073; Sat, 23 Apr 2022 10:01:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 206AC6B0074; Sat, 23 Apr 2022 10:01:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0F7806B0075; Sat, 23 Apr 2022 10:01:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.28]) by kanga.kvack.org (Postfix) with ESMTP id F3E706B0073 for ; Sat, 23 Apr 2022 10:01:44 -0400 (EDT) Received: from smtpin07.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id C70581825 for ; Sat, 23 Apr 2022 14:01:44 +0000 (UTC) X-FDA: 79388306928.07.0A97CF8 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) by imf20.hostedemail.com (Postfix) with ESMTP id 817B71C0047 for ; Sat, 23 Apr 2022 14:01:42 +0000 (UTC) Received: by mail-yb1-f201.google.com with SMTP id h16-20020a056902009000b00628a70584b2so9439974ybs.6 for ; Sat, 23 Apr 2022 07:01:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=T8hqvwXzMDJqZ8Axnxfnhvq+3Bu/rfhoYjsi7PA4tsE=; b=SaaEKps4SdcXrfWLEhDKbRKvWuHqxD/qC9DthlbxTefT8zFbnCkKN6Twt0N/zWPsAU kJOzbP+3wq3L1DT7U8hKowgIHXNJSlfhEhCCYfjXkLsVcCgEaWIy3Ga1kCs9Pj1BgVou eETAD1Kace93r7bld1JcOoykJwmdEeNQd6b567WNlWqOJMytyl4gEqOx+RfI7++STaz7 d8WiXLQeQEuCe01HMtqFsrTJopkuQYUY7UetF/X16zSVu9Ac6gXTXRhIO2i3L3SaVbou Cju3TdsCK+gMN7LKClrPxs1deGxBu6NTofsZp4LnlYrUunaHT7GuB+5CDuJ5wRWl69ZZ nxaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=T8hqvwXzMDJqZ8Axnxfnhvq+3Bu/rfhoYjsi7PA4tsE=; b=RbSQBfR7UsNZMwCHz44/CyCuJlnrvWrEZujjbjwwYh7cqKvt3TtKIl3Qcgn8wMan77 H/S4o2yc3LRSWiAuwmZwfwQfLsAWQFrJQAjirTOnQfx7azUyRc0jwAsjf93poOV0B8jg 6clIf+bW5Dkx+7Y5SnSpRAxg4eu0Dpiz536czNEys1TRZrBxEAP8ZvPtTXXeToZQHCrj JDmUDP5TA+BNr+arL16qwiYKEZPR3BoarnOngX+FMuIkVOZvDqcTYGwahjybkQvEoJjw z6Vj5qtF/O5LctzlcIknj86TlKChCQM/1c7D7N8ikef2zplTCkr2GNTSlU9Bw3fdQW5Q tPFg== X-Gm-Message-State: AOAM532XXS5f1OltfTHu6PwY7RQJGPRwtyeG8xPM1YBwqJm3nXLfgUTO ueeUMvQNBufBJldRWVq97pu78AcfTfmlLQ== X-Google-Smtp-Source: ABdhPJxsNaEps6ilaktgoEwtOSIY7NxJHT+V6V6MOj80bSa9QlpCvxee4wdQ5uX7FllpuzeE/S8bxPIyfYgnpw== X-Received: from shakeelb.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:28b]) (user=shakeelb job=sendgmr) by 2002:a25:8e90:0:b0:637:3d1f:cc39 with SMTP id q16-20020a258e90000000b006373d1fcc39mr8923198ybl.321.1650722503481; Sat, 23 Apr 2022 07:01:43 -0700 (PDT) Date: Sat, 23 Apr 2022 14:01:41 +0000 In-Reply-To: <20220421234426.3494842-3-yosryahmed@google.com> Message-Id: <20220423140141.si5uke4wwzkbvssv@google.com> Mime-Version: 1.0 References: <20220421234426.3494842-1-yosryahmed@google.com> <20220421234426.3494842-3-yosryahmed@google.com> Subject: Re: [PATCH v4 2/4] selftests: cgroup: return -errno from cg_read()/cg_write() on failure From: Shakeel Butt To: Yosry Ahmed Cc: Johannes Weiner , Michal Hocko , Andrew Morton , Roman Gushchin , David Rientjes , Tejun Heo , Zefan Li , Jonathan Corbet , Shuah Khan , Yu Zhao , Dave Hansen , Wei Xu , Greg Thelen , Chen Wandun , Vaibhav Jain , "Michal =?utf-8?Q?Koutn=C3=BD?=" , Tim Chen , Dan Schatzberg , cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org Content-Type: text/plain; charset="us-ascii" X-Stat-Signature: 31maoudbya8ab845qwofakdi6p3dtzj1 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 817B71C0047 X-Rspam-User: Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=SaaEKps4; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf20.hostedemail.com: domain of 3xwZkYggKCH4ujcmggndiqqing.eqonkpwz-oomxcem.qti@flex--shakeelb.bounces.google.com designates 209.85.219.201 as permitted sender) smtp.mailfrom=3xwZkYggKCH4ujcmggndiqqing.eqonkpwz-oomxcem.qti@flex--shakeelb.bounces.google.com X-HE-Tag: 1650722502-417572 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Apr 21, 2022 at 11:44:24PM +0000, Yosry Ahmed wrote: > Currently, cg_read()/cg_write() returns 0 on success and -1 on failure. > Modify them to return the -errno on failure. > > Signed-off-by: Yosry Ahmed Acked-by: Shakeel Butt