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@xxxxxxxxxxxxxxx > Signed-off-by: Mel Gorman <mgorman@xxxxxxx> Reviewed-by: Rik van Riel <riel@xxxxxxxxxx> -- All rights reversed -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>