Re: [PATCH -V8 11/16] hugetlb/cgroup: Add charge/uncharge routinesfor hugetlb cgroup

From: Michal Hocko
Date: Mon Jun 11 2012 - 05:10:30 EST


On Mon 11-06-12 10:38:10, Michal Hocko wrote:
> On Sat 09-06-12 14:29:56, Aneesh Kumar K.V wrote:
> > From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
> >
> > This patchset add the charge and uncharge routines for hugetlb cgroup.
> > This will be used in later patches when we allocate/free HugeTLB
> > pages.
>
> Please describe the locking rules.
>
> > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
> > ---
> > mm/hugetlb_cgroup.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++
> > 1 file changed, 87 insertions(+)
> >
> > diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
> > index 20a32c5..48efd5a 100644
> > --- a/mm/hugetlb_cgroup.c
> > +++ b/mm/hugetlb_cgroup.c
> > @@ -105,6 +105,93 @@ static int hugetlb_cgroup_pre_destroy(struct cgroup *cgroup)
> > return -EBUSY;
> > }
> >
> > +int hugetlb_cgroup_charge_page(int idx, unsigned long nr_pages,
> > + struct hugetlb_cgroup **ptr)
>
> Missing doc.

And now that I am looking at the patch which uses this function then I
realized that the name shouldn't mention page as we do not use any as an
argument. It is more in lines with hugetlb_cgroup_charge_cgroup

--
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9
Czech Republic
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