linux-kernel - Re: [PATCH] btrfs: raid56: Remove VLA usage

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Message-ID: <20180530160843.GG3539@twin.jikos.cz>
Date:   Wed, 30 May 2018 18:08:43 +0200
From:   David Sterba <dsterba@...e.cz>
To:     dsterba@...e.cz, Kees Cook <keescook@...omium.org>,
        David Sterba <dsterba@...e.com>, Liu Bo <bo.li.liu@...cle.com>,
        Chris Mason <clm@...com>, Josef Bacik <jbacik@...com>,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: raid56: Remove VLA usage

On Wed, May 30, 2018 at 05:14:56PM +0200, David Sterba wrote:
> On Tue, May 29, 2018 at 04:44:59PM -0700, Kees Cook wrote:
> > In the quest to remove all stack VLA usage from the kernel[1], this
> > allocates the working buffers during regular init, instead of using stack
> > space. This refactors the allocation code a bit to make it easier
> > to review.
> > 
> > [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

For the record, so this was the last use of VLA in fs/btrfs/ .