linux-kernel - [PATCH -next] orangefs: use vzalloc() instead of vmalloc()/memset(0)

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Message-Id: <1467811431-2535-1-git-send-email-weiyj_lk@163.com>
Date:	Wed,  6 Jul 2016 13:23:51 +0000
From:	weiyj_lk@....com
To:	Mike Marshall <hubcap@...ibond.com>
Cc:	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	linux-kernel@...r.kernel.org
Subject: [PATCH -next] orangefs: use vzalloc() instead of vmalloc()/memset(0)

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

Use vzalloc() instead of vmalloc() and memset(0).

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 fs/orangefs/devorangefs-req.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/orangefs/devorangefs-req.c b/fs/orangefs/devorangefs-req.c
index a287a66..e839073 100644
--- a/fs/orangefs/devorangefs-req.c
+++ b/fs/orangefs/devorangefs-req.c
@@ -442,14 +442,12 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb,
 	if (op->downcall.type != ORANGEFS_VFS_OP_READDIR)
 		goto wakeup;
 
-	op->downcall.trailer_buf =
-		vmalloc(op->downcall.trailer_size);
+	op->downcall.trailer_buf = vzalloc(op->downcall.trailer_size);
 	if (op->downcall.trailer_buf == NULL) {
 		gossip_err("%s: failed trailer vmalloc.\n",
 			   __func__);
 		goto Enomem;
 	}
-	memset(op->downcall.trailer_buf, 0, op->downcall.trailer_size);
 	n = copy_from_iter(op->downcall.trailer_buf,
 			   op->downcall.trailer_size,
 			   iter);