linux-kernel - Re: cpuset trouble after hibernate

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Message-ID: <6599ad830709181759u7d4ee5bav61f5bbaf978d90af@mail.gmail.com>
Date:	Tue, 18 Sep 2007 17:59:51 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Pavel Machek" <pavel@....cz>
Cc:	"Nicolas Capit" <nicolas.capit@...g.fr>,
	linux-kernel@...r.kernel.org, pj@....com,
	"Simon Derr" <Simon.Derr@...l.net>
Subject: Re: cpuset trouble after hibernate

On 9/9/07, Pavel Machek <pavel@....cz> wrote:
>
> One of the cpus was unplugged during suspend... perhaps some
> save/restore is needed during hotplug/unplug?

Or else keep track separately in cpusets of

- cpus that the cpuset can run on
- cpus that the admin has specified for the cpu to run on

hotplug/hotunplug events would only affect the former; userspace would
only see/modify the latter. Then when hibernate is over and the CPUs
are hotplugged back in, things would be back as before.

Paul
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