1 files changed, 9 insertions, 1 deletions

diff --git a/mm/vmscan.c b/mm/vmscan.c
index dafb9d91b604..388a0447b8e8 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2244,8 +2244,16 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining)
                 if (!populated_zone(zone))
                         continue;
 
-                if (zone->all_unreclaimable)
+                /*
+                 * balance_pgdat() skips over all_unreclaimable after
+                 * DEF_PRIORITY. Effectively, it considers them balanced so
+                 * they must be considered balanced here as well if kswapd
+                 * is to sleep
+                 */
+                if (zone->all_unreclaimable) {
+                        balanced += zone->present_pages;
                         continue;
+                }
 
                 if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone),
                                                                 0, 0))