linux-kernel - Re: [PATCH 0/2] Add kvzalloc_struct to complement kvzalloc

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Message-ID: <20180214193613.GB20627@bombadil.infradead.org>
Date:   Wed, 14 Feb 2018 11:36:13 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     Joe Perches <joe@...ches.com>
Cc:     Kees Cook <keescook@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Linux-MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH 0/2] Add kvzalloc_struct to complement kvzalloc_array

On Wed, Feb 14, 2018 at 11:32:45AM -0800, Joe Perches wrote:
> On Wed, 2018-02-14 at 11:23 -0800, Kees Cook wrote:
> > On Wed, Feb 14, 2018 at 10:47 AM, Joe Perches <joe@...ches.com> wrote:
> > > I think expanding the number of allocation functions
> > > is not necessary.
> > 
> > I think removing common mispatterns in favor of overflow-protected
> > allocation functions makes sense.
> 
> Function symmetry matters too.
> 
> These allocation functions are specific to kvz<foo>
> and are not symmetric for k<foo>, v<foo>, devm_<foo>
> <foo>_node, and the like.

If somebody wants them, then we can add them.