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SubjectRe: [PATCH v2 05/12] mm/hugetlb: unify hugetlb migration callback function
2020년 6월 9일 (화) 오후 10:43, Michal Hocko <mhocko@kernel.org>님이 작성:
>
> On Wed 27-05-20 15:44:56, Joonsoo Kim wrote:
> [...]
> > -/* page migration callback function */
> > struct page *alloc_huge_page_nodemask(struct hstate *h,
> > struct alloc_control *ac)
> > {
> > ac->gfp_mask |= htlb_alloc_mask(h);
> > + if (ac->nid == NUMA_NO_NODE)
> > + ac->gfp_mask &= ~__GFP_THISNODE;
>
> Is this really needed? alloc_huge_page_node is currently only called
> from numa migration code and the target node should be always defined.

Thanks! When I read the code, I was not sure that the target node is always
defined so I left this code. However, if it's true, this code isn't
needed at all.
I will consider your suggestion in the next version.

Thanks.

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