On Thu, Nov 30, 2017 at 02:15:55PM -0800, akpm@xxxxxxxxxxxxxxxxxxxx wrote: > From: zhong jiang <zhongjiang@xxxxxxxxxx> > Subject: mm/vmstat.c: walk the zone in pageblock_nr_pages steps > > when walking the zone, we can happens to the holes. we should not > align MAX_ORDER_NR_PAGES, so it can skip the normal memory. Even if this change is applied, we could skip the normal memory in some corner cases. However, pagetypeinfo_showblockcount_print() that is highly related to this function also jumps to the next pageblock when it found invalid pfn so this patch make the code more consistent. Therefore, Acked-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Thanks. -- 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>