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-rw-r--r--mm/page_alloc.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7350986bbf99..b54c5cbf0200 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1942,9 +1942,24 @@ zonelist_scan:
 				continue;
 			default:
 				/* did we reclaim enough */
-				if (!zone_watermark_ok(zone, order, mark,
+				if (zone_watermark_ok(zone, order, mark,
 						classzone_idx, alloc_flags))
+					goto try_this_zone;
+
+				/*
+				 * Failed to reclaim enough to meet watermark.
+				 * Only mark the zone full if checking the min
+				 * watermark or if we failed to reclaim just
+				 * 1<<order pages or else the page allocator
+				 * fastpath will prematurely mark zones full
+				 * when the watermark is between the low and
+				 * min watermarks.
+				 */
+				if (((alloc_flags & ALLOC_WMARK_MASK) == ALLOC_WMARK_MIN) ||
+				    ret == ZONE_RECLAIM_SOME)
 					goto this_zone_full;
+
+				continue;
 			}
 		}