[PATCH 2/2] CFS CGroup: Report usage
Balbir Singh
balbir at linux.vnet.ibm.com
Tue Oct 23 00:57:40 PDT 2007
Paul Menage wrote:
> On 10/23/07, Balbir Singh <balbir at linux.vnet.ibm.com> wrote:
>> Well, most people who care about deletion will use the notify_on_release
>> callback and retry.
>
> I'm not convinced this is true. Certainly the userspace approaches
> we're developing at Google don't (currently) use notify_on_release.
>
> Paul
Well, without notify_on_release you can never be sure if a new task
got added to the control group or if someone acquired a reference
to it. I can't think of a safe way of removing control groups/cpusets
without using notify_on_release.
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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