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Date:   Fri, 22 Mar 2019 22:51:05 +0000
From:   Chris Down <>
To:     Roman Gushchin <>
Cc:     Andrew Morton <>,
        Johannes Weiner <>,
        Michal Hocko <>, Tejun Heo <>,
        Dennis Zhou <>,
        "" <>,
        "" <>,
        "" <>,
        Kernel Team <>
Subject: Re: [PATCH REBASED] mm, memcg: Make scan aggression always exclude

Roman Gushchin writes:
>However, we can race with the emin/elow update and end up with negative scan,
>especially if cgroup_size is about the effective protection size

Yeah, it's possible but unlikely, hence the TOCTOU check. :-)

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