On Mon, 6 Sep 2010 01:12:38 -0700 (PDT) Hugh Dickins <hughd@xxxxxxxxxx> wrote: > Move the hibernation check from scan_swap_map() into try_to_free_swap(): > to catch not only the common case when hibernation's allocation itself > triggers swap reuse, but also the less likely case when concurrent page > reclaim (shrink_page_list) might happen to try_to_free_swap from a page. > > Hibernation already clears __GFP_IO from the gfp_allowed_mask, to stop > reclaim from going to swap: check that to prevent swap reuse too. > > Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx> > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> > Cc: "Rafael J. Wysocki" <rjw@xxxxxxx> > Cc: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx> > Cc: Andrea Gelmini <andrea.gelmini@xxxxxxxxx> > Cc: Balbir Singh <balbir@xxxxxxxxxx> > Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> > Cc: Nigel Cunningham <nigel@xxxxxxxxxxxx> > Cc: stable@xxxxxxxxxx Hmm...seems better. Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>