linux-kernel - Re: [PATCH v4 2/2] cgroups: add a pids subsystem

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Message-ID: <CAOviyah2KCu9K7D_H2zAf3LYbnj65P39YPmNamfA=-SSNq4hOg@mail.gmail.com>
Date:	Tue, 10 Mar 2015 19:10:46 +1100
From:	Aleksa Sarai <cyphar@...har.com>
To:	Austin S Hemmelgarn <ahferroin7@...il.com>
Cc:	Tejun Heo <tj@...nel.org>, lizefan@...wei.com, mingo@...hat.com,
	peterz@...radead.org, richard@....at,
	Frédéric Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org
Subject: Re: [PATCH v4 2/2] cgroups: add a pids subsystem

Hi Austin,

>> Does pids limit make sense in the root cgroup?
>>
> I would say it kind of does, although I would just expect it to track
> /proc/sys/kernel/pid_max (either as a read-only value, or as an alternative
> way to set it).

Personally, that seems unintuitive. /proc/sys/kernel/pid_max and the pids
cgroup controller are orthogonal features, why should they be able to affect
each other (or even be aware of each other)?

--
Aleksa Sarai (cyphar)
www.cyphar.com
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