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Message-Id: <1365769446-22034-1-git-send-email-wenqing.lz@taobao.com>
Date: Fri, 12 Apr 2013 20:24:06 +0800
From: Zheng Liu <gnehzuil.liu@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH] jbd: use kmem_cache_zalloc instead of kmem_cache_alloc/memset
From: Zheng Liu <wenqing.lz@...bao.com>
Now jbd_alloc_handle is only called by new_handle. So this commit
uses kmem_cache_zalloc instead of kmem_cache_alloc/memset.
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
fs/jbd/transaction.c | 1 -
include/linux/jbd.h | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 071d690..e3e255c 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -245,7 +245,6 @@ static handle_t *new_handle(int nblocks)
handle_t *handle = jbd_alloc_handle(GFP_NOFS);
if (!handle)
return NULL;
- memset(handle, 0, sizeof(*handle));
handle->h_buffer_credits = nblocks;
handle->h_ref = 1;
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index c8f3297..7e0b622 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -887,7 +887,7 @@ extern struct kmem_cache *jbd_handle_cache;
static inline handle_t *jbd_alloc_handle(gfp_t gfp_flags)
{
- return kmem_cache_alloc(jbd_handle_cache, gfp_flags);
+ return kmem_cache_zalloc(jbd_handle_cache, gfp_flags);
}
static inline void jbd_free_handle(handle_t *handle)
--
1.7.12.rc2.18.g61b472e
--
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