[Devel] Re: [RFC}[PATCH] forced uncharge for successful rmdir.

[Balbir Singh]

KAMEZAWA Hiroyuki wrote:
> Following patch is for successful rmdir in memory cgroup.
> 
> Currently, rmdir against memory cgroup will fail if charged page caches are in cgroup.
> (even if no tasks in cgroup.)
> 
> I don't like this. This patch implements "forced" uncharge against memory cgroup.
> Uncharged pages will be charged again when some other cgroup/task accesses it.
> 
> I wonder that all unmapped page-caches in cgroup should be uncharged if "1" is written to
> control_type.
> 
> I'm grad if I can hear memory controller's policy about "rmdir" against no-task-cgroup.
> 
> Thanks,
> -Kame

Hi, Kamezawa-San,

Thanks for looking into this, I am traveling. I'll review and respond
once I am back

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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