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

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Date:	Wed, 6 Jul 2016 13:28:56 -0400
From:	Mike Marshall <hubcap@...ibond.com>
To:	weiyj_lk@....com, Mike Marshall <hubcap@...ibond.com>
Cc:	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] orangefs: use vzalloc() instead of vmalloc()/memset(0)

Wei...

I have applied your patch and tested it, it seems good.

The gossip statement still references vmalloc, I used
"git commit --amend" to fix that for my test. I'll do the
same when I push to kernel.org too, if you're OK with that,
unless you want to fix it yourself and resend the patch...

Thanks!

-Mike

On Wed, Jul 6, 2016 at 9:23 AM,  <weiyj_lk@....com> wrote:
> 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);
>
>
>
>