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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AF73C433EF for ; Sat, 23 Apr 2022 14:01:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235910AbiDWOEq (ORCPT ); Sat, 23 Apr 2022 10:04:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235928AbiDWOEm (ORCPT ); Sat, 23 Apr 2022 10:04:42 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 497BC6AA58 for ; Sat, 23 Apr 2022 07:01:44 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-2f4e17a5809so51946257b3.2 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=SyE+Y6avvM9JnsZvLzl7sA7ZaBRmC6ZTJzMsisYDbqtIBpfqojKl1T37cTr72RsGN4 HXB4FcvE0ZaMa30dXUO4jThTHHTcdv/Z8W1OtXNgMOmI9I6OYq4obmPatI2Plx4kDDmu KrcFnJk01wEAmQlJoKxM9hRLLRil0BrF/O4k7axm7hXaYH38urkT58A7IZzExEYXN6F0 /bvIwl/fYDKh6eV369t91g0rdc17VSAAU6wsDaCrPt3xd6Vthn/X7FrdecI+0NO1YeCD dWCe1n9c7WShXYsbQvPkgroE44gnCEG/L8lY2qBmqXMIE2wOhh/ESrCXnahawwco5l7q KiyA== X-Gm-Message-State: AOAM533bnmP87DZikQpEahqOwrdhXZdE/Q0dEebiphTogf64ZV6tv1TC FGJOxQp42TizW1A7Uuxr5w8pTBLrV56C2A== 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" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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