From: Shai Fultheim <shai@scalemp.com>
Date: Tue, 15 May 2012 09:29:52 +0000 (+0300)
Subject: fs: Move bh_cachep to the __read_mostly section
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=a0a9b0433767713342f9cc70f563483c38e26f30;p=deliverable%2Flinux.git

fs: Move bh_cachep to the __read_mostly section

bh_cachep is only written to once on initialization, so move it to the
__read_mostly section.

Signed-off-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Vlad Zolotarov <vlad@scalemp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/buffer.c b/fs/buffer.c
index ad5938ca357c..838a9cf246bd 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3152,7 +3152,7 @@ SYSCALL_DEFINE2(bdflush, int, func, long, data)
 /*
  * 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