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SubjectRe: [PATCH v2] mm, hugetlb: set PageLRU for in-use/active hugepages
On Tue, 17 Feb 2015 15:57:44 -0800 Andrew Morton <> wrote:

> So if I'm understanding this correctly, hugepages never have PG_lru set
> and so you are overloading that bit on hugepages to indicate that the
> page is present on hstate->hugepage_activelist?

And maybe we don't need to overload PG_lru at all? There's plenty of
free space in the compound page's *(page + 1).

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