linux-kernel - Re: [PATCH v2] cgroup: pids: use atomic64

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Message-ID: <20191024190815.GE3622521@devbig004.ftw2.facebook.com>
Date:   Thu, 24 Oct 2019 12:08:15 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Aleksa Sarai <cyphar@...har.com>
Cc:     Li Zefan <lizefan@...wei.com>,
        Johannes Weiner <hannes@...xchg.org>, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v2] cgroup: pids: use atomic64_t for pids->limit

On Thu, Oct 17, 2019 at 02:50:01AM +1100, Aleksa Sarai wrote:
> Because pids->limit can be changed concurrently (but we don't want to
> take a lock because it would be needlessly expensive), use atomic64_ts
> instead.
> 
> Fixes: commit 49b786ea146f ("cgroup: implement the PIDs subsystem")
> Cc: stable@...r.kernel.org # v4.3+
> Signed-off-by: Aleksa Sarai <cyphar@...har.com>

Applied to cgroup/for-5.5.

Thanks.

-- 
tejun