| Date | Mon, 09 Dec 2013 09:22:07 -0500 | From | Rik van Riel <> | Subject | Re: [PATCH 04/18] mm: numa: Do not clear PMD during PTE update scan |
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On 12/09/2013 02:08 AM, Mel Gorman wrote: > If the PMD is flushed then a parallel fault in handle_mm_fault() will enter > the pmd_none and do_huge_pmd_anonymous_page() path where it'll attempt > to insert a huge zero page. This is wasteful so the patch avoids clearing > the PMD when setting pmd_numa. > > Cc: stable@vger.kernel.org > Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
-- All rights reversed
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