[Devel] Re: [PATCH 1/1] introduce user_ns inheritance in user-sched

[Peter Zijlstra]

On Thu, 2009-03-19 at 16:16 -0500, Serge E. Hallyn wrote:
> In a kernel compiled with CONFIG_USER_SCHED=y, cpu shares are
> allocated according to uid.  Shares are specifiable under
> /sys/kernel/uids/<uid>/
> 
> In a kernel compiled with CONFIG_USER_NS=y, clone(2) with the
> CLONE_NEWUSER flag creates a new user namespace, and the newly
> cloned task will belong to uid 0 in the new user namespace.

We seem to be adding more and more stuff for USER_SCHED, is anybody
actually using that cruft?

How far along with cgroups are we to fully simulate that behaviour?

I think if we have a capable cgroup based replacement for USER_SCHED we
should axe it from the kernel, would save lots of code...


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