[Devel] Re: [PATCH] task containersv11 add tasks file interface fix for cpusets

[Paul Menage]

On 10/3/07, Paul Jackson <pj at sgi.com> wrote:
> From: Paul Jackson <pj at sgi.com>
>
> The code in kernel/cgroup.c attach_task() which skips the
> attachment of a task to the group it is already in has to be
> removed.  Cpusets depends on reattaching a task to its current
> cpuset, in order to trigger updating the cpus_allowed mask in the
> task struct.

Can you explain a bit more about why this is needed? (i.e. specific
scenarios where cpusets will break without this change).

What triggers the reattach in normal use? Something from userspace?

Paul
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