diff --git a/fs/buffer.c b/fs/buffer.c
index ad5938c..838a9cf 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3152,7 +3152,7 @@
 /*
  * Buffer-head allocation
  */
-static struct kmem_cache *bh_cachep;
+static struct kmem_cache *bh_cachep __read_mostly;
 
 /*
  * Once the number of bh's in the machine exceeds this level, we start