[Devel] Re: About bio-cgroup

[KAMEZAWA Hiroyuki]

On Wed, 29 Oct 2008 14:32:29 +0530
Balbir Singh <balbir at linux.vnet.ibm.com> wrote:

> KAMEZAWA Hiroyuki wrote:
> > On Wed, 29 Oct 2008 17:07:18 +0900 (JST)
> > Hirokazu Takahashi <taka at valinux.co.jp> wrote:
> > 
> >> Hi,
> >>
> >>> Hi Ryo,
> >>>
> >>> The page_cgroup seems to be stable in the latest kernel.
> >>> I'd like to know whether you have a plan or schedule to release
> >>> a new version of bio-cgroup against latest kernel.
> >> I have a plan on doing this.
> >>
> >> I thought I would start to implement it once the implementation of
> >> memory cgroup got almost done. If you say the code of page_cgroup is
> >> fixed, I'll start it from now on. I guess it'll be done in two weeks.
> >>
> > 
> > code to page_cgroup itself will not be changed. (I hope)
> > possible change will be
> >   - new flags
> >   - support to SwapCache
> >   - swap_cgroup support (will be done independenly from page_cgroup.)
> > 
> > API of
> >    lookup_page_cgroup()
> >    lock_page_cgroup()
> >    PCG_USED bit
> > 
> > will not change, I think.
> 
> I think you should not wait for stabilization, rather build on mmotm (-mm). Use
> it and complain if it changes too often or becomes unusable for you.
> 
I think so, too ;)

-Kame

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