linux-kernel - Re: [PATCH mm-unstable v1 20/20] mm: rename FOLL_FORCE to FOLL

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Message-ID: <202211181427.4D1C3132FE@keescook>
Date:   Fri, 18 Nov 2022 14:29:02 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
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Subject: Re: [PATCH mm-unstable v1 20/20] mm: rename FOLL_FORCE to FOLL_PTRACE

On Fri, Nov 18, 2022 at 12:09:02PM +0100, Peter Zijlstra wrote:
> On Wed, Nov 16, 2022 at 10:16:34AM -0800, Linus Torvalds wrote:
> > Following the history of it is a big of a mess, because there's a
> > number of renamings and re-organizations, but it seems to go back to
> > 2007 and commit b6a2fea39318 ("mm: variable length argument support").
> 
> I went back and read parts of the discussions with Ollie, and the
> .force=1 thing just magically appeared one day when we were sending
> work-in-progress patches back and forth without mention of where it came
> from :-/
> 
> And I certainly can't remember now..
> 
> Looking at it now, I have the same reaction as both you and Kees had, it
> seems entirely superflous. So I'm all for trying to remove it.

Thanks for digging through the history! I've pushed the change to -next:
https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=for-next/execve&id=cd57e443831d8eeb083c7165bce195d886e216d4

-- 
Kees Cook