[patch] alloc_buffer_head() cleanup

[Coywolf Qi Hunt <qiyong@fc-cn.com>]

Hello,

This cleanups up alloc_buffer_head(), by using a single get_cpu_var().
Boot tested.

	Coywolf


Signed-off-by: Coywolf Qi Hunt <qiyong@fc-cn.com>
---

 buffer.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

--- 2.6.13-rc6-mm2/fs/buffer.c~orig	2005-08-23 13:42:04.000000000 +0800
+++ 2.6.13-rc6-mm2/fs/buffer.c	2005-08-25 14:14:22.000000000 +0800
@@ -3049,10 +3049,9 @@ struct buffer_head *alloc_buffer_head(un
 {
 	struct buffer_head *ret = kmem_cache_alloc(bh_cachep, gfp_flags);
 	if (ret) {
-		preempt_disable();
-		__get_cpu_var(bh_accounting).nr++;
+		get_cpu_var(bh_accounting).nr++;
 		recalc_bh_state();
-		preempt_enable();
+		put_cpu_var(bh_accounting);
 	}
 	return ret;
 }