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SubjectRe: [PATCH 0/12] memcg updates v5
On Fri, 26 Sep 2008 13:48:58 +0530
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

> KAMEZAWA Hiroyuki wrote:
> > Hi, I updated the stack and reflected comments.
> > Against the latest mmotm. (rc7-mm1)
> >
> > Major changes from previous one is
> > - page_cgroup allocation/lookup manner is changed.
> > all FLATMEM/DISCONTIGMEM/SPARSEMEM and MEMORY_HOTPLUG is supported.
> > - force_empty is totally rewritten. and a problem that "force_empty takes long time"
> > in previous version is fixed (I think...)
> > - reordered patches.
> > - first half are easy ones.
> > - second half are big ones.
> >
> > I'm still testing with full debug option. No problem found yet.
> > (I'm afraid of race condition which have not been caught yet.)
> >
> > [1/12] avoid accounting special mappings not on LRU. (fix)
> > [2/12] move charege() call to swapped-in page under lock_page() (clean up)
> > [3/12] make root cgroup to be unlimited. (change semantics.)
> > [4/12] make page->mapping NULL before calling uncharge (clean up)
> > [5/12] make page->flags to use atomic ops. (changes in infrastructure)
> > [6/12] optimize stat. (clean up)
> > [7/12] add support function for moving account. (new function)
> > [8/12] rewrite force_empty to use move_account. (change semantics.)
> > [9/12] allocate all page_cgroup at boot. (changes in infrastructure)
> > [10/12] free page_cgroup from LRU in lazy way (optimize)
> > [11/12] add page_cgroup to LRU in lazy way (optimize)
> > [12/12] fix race at charging swap (fix by new logic.)
> >
> > *Any* comment is welcome.
>
> Kame,
>
> I'm beginning to review test the patches now. It would be really nice to split
> the development patches from the maintenance ones. I think the full patchset has
> too many things and is confusing to look at.
>
I hope I can do....but maybe difficult.
If you give me ack, 1,2,4,6, can be pushed at early stage.

Thanks,
-Kame






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