linux-kernel - Re: [PATCH v2 3/8] Convert virtio_console to kvzalloc

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Message-ID: <20180214202835.GE20627@bombadil.infradead.org>
Date:   Wed, 14 Feb 2018 12:28:35 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     Joe Perches <joe@...ches.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Matthew Wilcox <mawilcox@...rosoft.com>, linux-mm@...ck.org,
        Kees Cook <keescook@...omium.org>,
        linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v2 3/8] Convert virtio_console to kvzalloc_struct

On Wed, Feb 14, 2018 at 12:19:47PM -0800, Joe Perches wrote:
> On Wed, 2018-02-14 at 12:11 -0800, Matthew Wilcox wrote:
> >  	 */
> > -	buf = kmalloc(sizeof(*buf) + sizeof(struct scatterlist) * pages,
> > -		      GFP_KERNEL);
> > +	buf = kvzalloc_struct(buf, sg, pages, GFP_KERNEL);
> >  	if (!buf)
> 
> kvfree?

Yes, that would also need to be done.  The point of these last six
patches was to show the API in use, not for applying.