diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3b5358a..8a52ba9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1845,8 +1845,10 @@
 	for_each_zone(zone) {
 		struct per_cpu_pageset *pset = zone_pcp(zone, cpu);
 
+		/* Free per_cpu_pageset if it is slab allocated */
+		if (pset != &boot_pageset[cpu])
+			kfree(pset);
 		zone_pcp(zone, cpu) = NULL;
-		kfree(pset);
 	}
 }