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SubjectRe: [RFC][PATCH 1/2] memcg: Ensure every task that uses an mm is in the same memory cgroup
[dropping Kirill Tkhai from the CC because I get rejection from the mail
server]

On Fri 01-06-18 12:16:52, Tejun Heo wrote:
> Hello,
>
> On Fri, Jun 01, 2018 at 01:11:59PM -0500, Eric W. Biederman wrote:
> > Widening the definition of a process sounds good. The memory control
> > group code would still need a way to forbid these in cgroup v1 mode,
> > when someone uses the task file.
>
> Yeap, you're right. We'll need memcg's can_attach rejecting for v1.

Do we really need? I mean, do we know about any existing usecase that
would need this weird threading concept and depend on memory migration
which doesn't really work?
--
Michal Hocko
SUSE Labs

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