Messages in this thread |  | | From | Naoya Horiguchi <> | Subject | Re: [PATCH v2] mm, hugetlb: set PageLRU for in-use/active hugepages | Date | Wed, 18 Feb 2015 01:07:29 +0000 |
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On Tue, Feb 17, 2015 at 04:02:49PM -0800, Andrew Morton wrote: > On Tue, 17 Feb 2015 15:57:44 -0800 Andrew Morton <akpm@linux-foundation.org> 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).
Right, that's not necessary. So I'll use PG_private in *(page + 1), that's unused now and no worry about conflicting with other usage.
Thanks, Naoya Horiguchi
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