Re: [PATCH v3 1/4] memcg: introduce per-memcg reclaim interface

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On Fri, Apr 08, 2022 at 04:11:05PM +0200, Michal Hocko wrote:
> Regarding "max" as a possible input. I am not really sure to be honest.
> I can imagine that it could be legit to simply reclaim all the charges
> (e.g. before removing the memcg) which should be achieveable by
> reclaiming the reported consumption. Or what exactly should be the
> semantic?

Yeah, it just allows you to avoid reading memory.current to just
reclaim everything if you can specify "max" - you're still protected
by nretries to eventually bail out. Mostly, though I just feel like
supporting "max" makes memory.reclaim semetric with a lot of the
cgroup memory control files which tend to support "max".



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