Re: [mm] [PATCH 4/4] Memory cgroup hierarchy feature selector

Balbir Singh
2008-11-02T06:04:16Z

KAMEZAWA Hiroyuki wrote:
> On Sun, 02 Nov 2008 00:19:02 +0530
> Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
>
>> Don't enable multiple hierarchy support by default. This patch introduces
>> a features element that can be set to enable the nested depth hierarchy
>> feature. This feature can only be enabled when there is just one cgroup
>> (the root cgroup).
>>
> Why the flag is for the whole system ?
> flag-per-subtree is of no use ?

Flag per subtree might not be useful, since we charge all the way up to root,
which means that all subtrees have the root cgroup and hence the global flag.

Thanks for the comments,

--
Balbir