On Wed, 21 Dec 2011 17:23:45 -0500 Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> wrote: > Thp split is not necessary if we explicitly check whether pmds are > mapping thps or not. This patch introduces the check and the code > to generate pagemap entries for pmds mapping thps, which results in > less performance impact of pagemap on thp. > > Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> > Reviewed-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> > > Changes since v1: > - move pfn declaration to the beginning of pagemap_pte_range() > --- Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>