On Fri, Aug 02, 2013 at 06:06:35PM +0200, Andrea Arcangeli wrote: > If we're in the fast path and we succeeded zone_reclaim(), it means we > freed enough memory and we can use the min watermark to have some > margin against concurrent allocations from other CPUs or interrupts. > > Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> This seems very light on explanation. The fast path is meant to obey the low watermark and wake up kswapd in the slow path if the watermark cannot be obeyed. This patch appears to allow a kswapd wakeup to be missed. -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>