From: Chris Down <chris@chrisdown.name>
To: Roman Gushchin <guro@fb.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>, Tejun Heo <tj@kernel.org>,
Dennis Zhou <dennis@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"cgroups@vger.kernel.org" <cgroups@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Kernel Team <Kernel-team@fb.com>
Subject: Re: [PATCH REBASED] mm, memcg: Make scan aggression always exclude protection
Date: Fri, 22 Mar 2019 22:51:05 +0000 [thread overview]
Message-ID: <20190322225105.GA21729@chrisdown.name> (raw)
In-Reply-To: <20190322224922.GA7729@tower.DHCP.thefacebook.com>
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. :-)
next prev parent reply other threads:[~2019-03-22 22:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 21:30 [PATCH] mm, memcg: Make scan aggression always exclude protection Chris Down
2019-03-01 0:03 ` Roman Gushchin
2019-03-22 16:03 ` [PATCH REBASED] " Chris Down
2019-03-22 20:10 ` Andrew Morton
2019-03-22 22:00 ` Chris Down
2019-03-22 22:29 ` Roman Gushchin
2019-03-22 22:49 ` Roman Gushchin
2019-03-22 22:51 ` Chris Down [this message]
2019-03-22 22:49 ` Chris Down
2019-03-22 23:01 ` Roman Gushchin
2019-03-22 23:51 ` Chris Down
2019-05-30 6:12 ` Michal Hocko
2019-05-30 6:44 ` Chris Down
2019-05-30 6:51 ` Michal Hocko
2019-05-30 20:52 ` Chris Down
2019-05-31 6:28 ` Michal Hocko
2019-05-31 19:27 ` Chris Down
2019-07-16 17:10 ` Johannes Weiner
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