On Mon, Dec 05, 2011 at 05:14:43PM +0100, Michal Hocko wrote: > From 38a1cf351b111e8791d2db538c8b0b912f5df8b8 Mon Sep 17 00:00:00 2001 > From: Michal Hocko <mhocko@xxxxxxx> > Date: Mon, 5 Dec 2011 17:04:23 +0100 > Subject: [PATCH] mm: fix off-by-two in __zone_watermark_ok > > 88f5acf8 [mm: page allocator: adjust the per-cpu counter threshold when > memory is low] changed the form how free_pages is calculated but it > forgot that we used to do free_pages - ((1 << order) - 1) so we ended up > with off-by-two when calculating free_pages. > > Spotted-by: Wang Sheng-Hui <shhuiw@xxxxxxxxx> > Signed-off-by: Michal Hocko <mhocko@xxxxxxx> Acked-by: Mel Gorman <mgorman@xxxxxxx> -- Mel Gorman SUSE Labs -- 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>