mm: throttle direct reclaimers if PF_MEMALLOC reserves are low and swap is backed...

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ef2d1e72fc07f96380628c33e021022570360191..48aee0f5902f148f7b6a480f03b6e816ac057b91 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4389,6 +4389,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
        pgdat_resize_init(pgdat);
        pgdat->nr_zones = 0;
        init_waitqueue_head(&pgdat->kswapd_wait);
+       init_waitqueue_head(&pgdat->pfmemalloc_wait);
        pgdat->kswapd_max_order = 0;
        pgdat_page_cgroup_init(pgdat);