Messages in this thread | | | Date | Tue, 28 Apr 2015 15:14:20 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] compaction: fix isolate_migratepages_block() for THP=n |
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On Mon, 27 Apr 2015 14:26:46 +0300 "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> wrote:
> PageTrans* helpers are always-false if THP is disabled compile-time. > It means the fucntion will fail to detect hugetlb pages in this case. > > Let's use PageCompound() instead. With small tweak to how we calculate > next low_pfn it will make function ready to see tail pages.
<scratches head>
So this patch has no runtime effects at present? It is preparation for something else?
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