linux-kernel - Re: [PATCH v5 2/4] selftests: cgroup: return -errno from cg_read()/cg

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Message-ID: <f089fcc2-68d6-2b5a-6d29-f492d6414cf@google.com>
Date:   Mon, 25 Apr 2022 12:17:39 -0700 (PDT)
From:   David Rientjes <rientjes@...gle.com>
To:     Yosry Ahmed <yosryahmed@...gle.com>
cc:     Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
        Jonathan Corbet <corbet@....net>,
        Shuah Khan <shuah@...nel.org>, Yu Zhao <yuzhao@...gle.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Wei Xu <weixugc@...gle.com>, Greg Thelen <gthelen@...gle.com>,
        Chen Wandun <chenwandun@...wei.com>,
        Vaibhav Jain <vaibhav@...ux.ibm.com>,
        Michal Koutný <mkoutny@...e.com>,
        Tim Chen <tim.c.chen@...ux.intel.com>, cgroups@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v5 2/4] selftests: cgroup: return -errno from
 cg_read()/cg_write() on failure

On Mon, 25 Apr 2022, 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 <yosryahmed@...gle.com>
> Acked-by: Shakeel Butt <shakeelb@...gle.com>

Acked-by: David Rientjes <rientjes@...gle.com>