[PATCH] fs: Move bh_cachep to the __read_mostly section

From: Vlad Zolotarov
Date: Tue Apr 17 2012 - 07:44:02 EST

From: Shai Fultheim <shai@xxxxxxxxxxx>

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

Signed-off-by: Shai Fultheim <shai@xxxxxxxxxxx>
Signed-off-by: Vlad Zolotarov <vlad@xxxxxxxxxxx>
fs/buffer.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/buffer.c b/fs/buffer.c
index 36d6665..a1d82fb 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3151,7 +3151,7 @@ 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

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/