diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 81a9d4d1e6c0..ee902a468c2f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6653,7 +6653,8 @@ static int sysctl_min_unmapped_ratio_sysctl_handler(const struct ctl_table *tabl
 	if (rc)
 		return rc;
 
-	setup_min_unmapped_ratio();
+	if (write)
+		setup_min_unmapped_ratio();
 
 	return 0;
 }
@@ -6680,7 +6681,8 @@ static int sysctl_min_slab_ratio_sysctl_handler(const struct ctl_table *table, i
 	if (rc)
 		return rc;
 
-	setup_min_slab_ratio();
+	if (write)
+		setup_min_slab_ratio();
 
 	return 0;
 }