On Mon, Nov 23, 2020 at 3:48 PM Michal Hocko wrote:
>
> On Fri 20-11-20 17:30:27, Muchun Song wrote:
> > On Fri, Nov 20, 2020 at 4:16 PM Michal Hocko wrote:
> > >
> > > On Fri 20-11-20 14:43:17, Muchun Song wrote:
> > > > When we allocate hugetlb page from buddy, we may need split huge pmd
> > >
On Fri 20-11-20 17:30:27, Muchun Song wrote:
> On Fri, Nov 20, 2020 at 4:16 PM Michal Hocko wrote:
> >
> > On Fri 20-11-20 14:43:17, Muchun Song wrote:
> > > When we allocate hugetlb page from buddy, we may need split huge pmd
> > > to pte. When we free the hugetlb page, we can merge pte to pmd.
On Fri, Nov 20, 2020 at 4:16 PM Michal Hocko wrote:
>
> On Fri 20-11-20 14:43:17, Muchun Song wrote:
> > When we allocate hugetlb page from buddy, we may need split huge pmd
> > to pte. When we free the hugetlb page, we can merge pte to pmd. So
> > we need to distinguish whether the previous pmd
On Fri 20-11-20 14:43:17, Muchun Song wrote:
> When we allocate hugetlb page from buddy, we may need split huge pmd
> to pte. When we free the hugetlb page, we can merge pte to pmd. So
> we need to distinguish whether the previous pmd has been split. The
> page table is not allocated from slab. So
When we allocate hugetlb page from buddy, we may need split huge pmd
to pte. When we free the hugetlb page, we can merge pte to pmd. So
we need to distinguish whether the previous pmd has been split. The
page table is not allocated from slab. So we can reuse the PG_slab
to indicate that the pmd
5 matches
Mail list logo