linux-kernel - Re: [PATCH v3 3/4] mm: treat memory.low value inclusive

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Message-ID: <20180417190049.GA3752@castle.DHCP.thefacebook.com>
Date:   Tue, 17 Apr 2018 20:00:56 +0100
From:   Roman Gushchin <guro@...com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Tejun Heo <tj@...nel.org>, <kernel-team@...com>,
        <cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 3/4] mm: treat memory.low value inclusive

Hello, Andrew!

Can you, please, pull this patchset?

Thanks!

Roman

On Fri, Apr 06, 2018 at 12:38:02PM -0400, Johannes Weiner wrote:
> On Fri, Apr 06, 2018 at 01:21:38PM +0100, Roman Gushchin wrote:
> >
> > From 466c35c36cae392cfee5e54a2884792972e789ee Mon Sep 17 00:00:00 2001
> > From: Roman Gushchin <guro@...com>
> > Date: Thu, 5 Apr 2018 19:31:35 +0100
> > Subject: [PATCH v4 3/4] mm: treat memory.low value inclusive
> > 
> > If memcg's usage is equal to the memory.low value, avoid reclaiming
> > from this cgroup while there is a surplus of reclaimable memory.
> > 
> > This sounds more logical and also matches memory.high and memory.max
> > behavior: both are inclusive.
> > 
> > Empty cgroups are not considered protected, so MEMCG_LOW events
> > are not emitted for empty cgroups, if there is no more reclaimable
> > memory in the system.
> > 
> > Signed-off-by: Roman Gushchin <guro@...com>
> > Cc: Andrew Morton <akpm@...ux-foundation.org>
> > Cc: Johannes Weiner <hannes@...xchg.org>
> > Cc: Michal Hocko <mhocko@...nel.org>
> > Cc: Vladimir Davydov <vdavydov.dev@...il.com>
> > Cc: Tejun Heo <tj@...nel.org>
> > Cc: kernel-team@...com
> > Cc: linux-mm@...ck.org
> > Cc: cgroups@...r.kernel.org
> > Cc: linux-kernel@...r.kernel.org
> 
> Looks good, thanks!
> 
> Acked-by: Johannes Weiner <hannes@...xchg.org>
>