linux-kernel - Re: [RFC PATCH] binfmt_elf: Protect mm_struct access with mmap

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Message-ID: <20190612175159.GF32656@bombadil.infradead.org>
Date:   Wed, 12 Jun 2019 10:51:59 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Michal Koutný <mkoutny@...e.com>
Cc:     gorcunov@...il.com, linux-mm@...ck.org,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        linux-kernel@...r.kernel.org, Kirill Tkhai <ktkhai@...tuozzo.com>
Subject: Re: [RFC PATCH] binfmt_elf: Protect mm_struct access with mmap_sem

On Wed, Jun 12, 2019 at 07:29:15PM +0200, Michal Koutný wrote:
> On Wed, Jun 12, 2019 at 10:00:34AM -0700, Matthew Wilcox <willy@...radead.org> wrote:
> > On Wed, Jun 12, 2019 at 04:28:11PM +0200, Michal Koutný wrote:
> > > -	/* N.B. passed_fileno might not be initialized? */
> > > +
> > 
> > Why did you delete this comment?
> The variable got removed in
>     d20894a23708 ("Remove a.out interpreter support in ELF loader")
> so it is not relevant anymore.

Better put that in the changelog for v2 then.  or even make it a
separate patch.