Re: [PATCH v5 3/3] cgroups: make procs file writable

From: Paul Menage
Date: Tue Aug 24 2010 - 14:09:12 EST


On Tue, Aug 10, 2010 at 10:48 PM, Ben Blum <bblum@xxxxxxxxxxxxxx> wrote:
>
>
> Makes procs file writable to move all threads by tgid at once
>
> From: Ben Blum <bblum@xxxxxxxxxxxxxx>
>
> This patch adds functionality that enables users to move all threads in a
> threadgroup at once to a cgroup by writing the tgid to the 'cgroup.procs'
> file. This current implementation makes use of a per-threadgroup rwsem that's
> taken for reading in the fork() path to prevent newly forking threads within
> the threadgroup from "escaping" while the move is in progress.
>
> Signed-off-by: Ben Blum <bblum@xxxxxxxxxxxxxx>

Reviewed-by: Paul Menage <menage@xxxxxxxxxx>
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