From: Coywolf Qi Hunt <qiyong@fc-cn.com>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: [patch] alloc_buffer_head() cleanup
Date: Thu, 25 Aug 2005 16:37:51 +0800 [thread overview]
Message-ID: <20050825083751.GA4076@localhost.localdomain> (raw)
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;
}
next reply other threads:[~2005-08-25 8:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-25 8:37 Coywolf Qi Hunt [this message]
2005-08-25 15:35 ` [patch] alloc_buffer_head() and free_buffer_head() cleanup Coywolf Qi Hunt
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