I saw DMA zone is always unreclaimable in my system. zone->all_unreclaimable isn't initialized till a page from the zone is freed. This isn't a big problem normally, but a little confused, so fix here. Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx> diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6e8ecb6..1facc05 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4335,6 +4335,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat, zone_pcp_init(zone); for_each_lru(l) INIT_LIST_HEAD(&zone->lru[l].list); + zone->all_unreclaimable = 0; zone->reclaim_stat.recent_rotated[0] = 0; zone->reclaim_stat.recent_rotated[1] = 0; zone->reclaim_stat.recent_scanned[0] = 0; -- 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>