On Mon, 19 Mar 2012 11:41:07 +0900, KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote:
> (2012/03/17 2:39), Aneesh Kumar K.V wrote:
>
> > From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
> >
> > This adds necessary charge/uncharge calls in the HugeTLB code
> >
> > Acked-by: Hillf Danton <dhillf@xxxxxxxxx>
> > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
>
>
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> A nitpick below.
>
> > ---
> > mm/hugetlb.c | 21 ++++++++++++++++++++-
> > mm/memcontrol.c | 5 +++++
> > 2 files changed, 25 insertions(+), 1 deletions(-)
> >
> > diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> > index c672187..91361a0 100644
> > --- a/mm/hugetlb.c
> > +++ b/mm/hugetlb.c
> > @@ -21,6 +21,8 @@
> > #include <linux/rmap.h>
> > #include <linux/swap.h>
> > #include <linux/swapops.h>
> > +#include <linux/memcontrol.h>
> > +#include <linux/page_cgroup.h>
> >
> > #include <asm/page.h>
> > #include <asm/pgtable.h>
> > @@ -542,6 +544,9 @@ static void free_huge_page(struct page *page)
> > BUG_ON(page_mapcount(page));
> > INIT_LIST_HEAD(&page->lru);
> >
> > + if (mapping)
> > + mem_cgroup_hugetlb_uncharge_page(hstate_index(h),
> > + pages_per_huge_page(h), page);
> > spin_lock(&hugetlb_lock);
> > if (h->surplus_huge_pages_node[nid] && huge_page_order(h) < MAX_ORDER) {
> > update_and_free_page(h, page);
> > @@ -1019,12 +1024,15 @@ static void vma_commit_reservation(struct hstate *h,
> > static struct page *alloc_huge_page(struct vm_area_struct *vma,
> > unsigned long addr, int avoid_reserve)
> > {
> > + int ret, idx;
> > struct hstate *h = hstate_vma(vma);
> > struct page *page;
> > + struct mem_cgroup *memcg = NULL;
>
>
> Can't we this initialization in mem_cgroup_hugetlb_charge_page() ?
>
Will update in the next iteration.
-aneesh
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