X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=mm%2Fvmscan.c;h=e9210f825219c4ec944b747a84656c5e8f5fd007;hb=3f906ba23689a3f824424c50f3ae937c2c70f676;hp=9e95fafc026b4174331aee5b8dd91f0ba099a8c4;hpb=b6ffe9ba46016f8351896ccee33bebcd0e5ea7c0;p=karo-tx-linux.git

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 9e95fafc026b..e9210f825219 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2228,8 +2228,17 @@ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg,
 		}
 
 		if (unlikely(pgdatfile + pgdatfree <= total_high_wmark)) {
-			scan_balance = SCAN_ANON;
-			goto out;
+			/*
+			 * Force SCAN_ANON if there are enough inactive
+			 * anonymous pages on the LRU in eligible zones.
+			 * Otherwise, the small LRU gets thrashed.
+			 */
+			if (!inactive_list_is_low(lruvec, false, memcg, sc, false) &&
+			    lruvec_lru_size(lruvec, LRU_INACTIVE_ANON, sc->reclaim_idx)
+					>> sc->priority) {
+				scan_balance = SCAN_ANON;
+				goto out;
+			}
 		}
 	}