diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a4124936303b..732875b1bdfb 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2623,6 +2623,32 @@ bool zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
 					zone_page_state(z, NR_FREE_PAGES));
 }
 
+static inline bool zone_watermark_fast(struct zone *z, unsigned int order,
+		unsigned long mark, int classzone_idx, unsigned int alloc_flags)
+{
+	long free_pages = zone_page_state(z, NR_FREE_PAGES);
+	long cma_pages = 0;
+
+#ifdef CONFIG_CMA
+	/* If allocation can't use CMA areas don't use free CMA pages */
+	if (!(alloc_flags & ALLOC_CMA))
+		cma_pages = zone_page_state(z, NR_FREE_CMA_PAGES);
+#endif
+
+	/*
+	 * Fast check for order-0 only. If this fails then the reserves
+	 * need to be calculated. There is a corner case where the check
+	 * passes but only the high-order atomic reserve are free. If
+	 * the caller is !atomic then it'll uselessly search the free
+	 * list. That corner case is then slower but it is harmless.
+	 */
+	if (!order && (free_pages - cma_pages) > mark + z->lowmem_reserve[classzone_idx])
+		return true;
+
+	return __zone_watermark_ok(z, order, mark, classzone_idx, alloc_flags,
+					free_pages);
+}
+
 bool zone_watermark_ok_safe(struct zone *z, unsigned int order,
 			unsigned long mark, int classzone_idx)
 {
@@ -2744,7 +2770,7 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags,
 			continue;
 
 		mark = zone->watermark[alloc_flags & ALLOC_WMARK_MASK];
-		if (!zone_watermark_ok(zone, order, mark,
+		if (!zone_watermark_fast(zone, order, mark,
 				       ac->classzone_idx, alloc_flags)) {
 			int ret;