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

[weiyj_lk]

From: Wei Yongjun <yongjun_...@trendmicro.com.cn>

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

Signed-off-by: Wei Yongjun <yongjun_...@trendmicro.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);