Re: [PATCH v4 0/2] cgroups: implement moving a threadgroup's threadsatomically with cgroup.procs

From: Li Zefan
Date: Tue Aug 03 2010 - 21:55:59 EST


Andrew Morton wrote:
> On Fri, 30 Jul 2010 19:56:49 -0400
> Ben Blum <bblum@xxxxxxxxxxxxxx> wrote:
>
>> This patch series implements a write function for the 'cgroup.procs'
>> per-cgroup file, which enables atomic movement of multithreaded
>> applications between cgroups. Writing the thread-ID of any thread in a
>> threadgroup to a cgroup's procs file causes all threads in the group to
>> be moved to that cgroup safely with respect to threads forking/exiting.
>> (Possible usage scenario: If running a multithreaded build system that
>> sucks up system resources, this lets you restrict it all at once into a
>> new cgroup to keep it under control.)
>
> I can see how that would be useful. No comments from anyone else?
>

Oleg had been commenting on this patchset, so it would be nice to know
if he's comfortable with the changes in this version.

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