Re: [PATCH 2/2] cgroups: convert ss->attach to use whole threadgroupflex_array (cpuset, memcontrol)

From: Frederic Weisbecker
Date: Fri Oct 14 2011 - 08:21:35 EST


On Thu, Oct 13, 2011 at 08:36:01PM -0400, Ben Blum wrote:
> Convert ss->attach to take a flex_array of tasks instead of just the leader.
>
> From: Ben Blum <bblum@xxxxxxxxxxxxxx>
>
> This lets subsystems with whole-threadgroup attach calls (i.e., cpuset and
> memcontrol) to accurately find the group's mm even when a non-leader does exec
> and leaves the leader with a NULL mm pointer.
>
> Also converts cpuset and memcontrol to take the flex_array and iterate down it
> until an mm is found, instead of just attempting to use the leader's mm.
>
> Signed-off-by: Ben Blum <bblum@xxxxxxxxxxxxxx>

I think there are patches from Tejun that handle that did that already?

https://lkml.org/lkml/2011/8/23/418
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