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SubjectRe: [PATCH] memcg: towards I/O aware memcg v5
* KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2010-08-20 18:55:52]:

> This is v5.
>
> Sorry for delaying...but I had time for resetting myself and..several
> changes are added. I think this version is simpler than v4.
>
> Major changes from v4 is
> a) added kernel/cgroup.c hooks again. (for b)
> b) make RCU aware. previous version seems dangerous in an extreme case.
>
> Then, codes are updated. Most of changes are related to RCU.
>
> Patch brief view:
> 1. add hooks to kernel/cgroup.c for ID management.
> 2. use ID-array in memcg.
> 3. record ID to page_cgroup rather than pointer.
> 4. make update_file_mapped to be RCU aware routine instead of spinlock.
> 5. make update_file_mapped as general-purpose function.
>

Thanks for being persistent, will review the patches with comments in
the relevant patches.

--
Three Cheers,
Balbir


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