linux-kernel - Re: [PATCH] fix bug introduced in "mm: simplify find_vma

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Message-ID: <CA+55aFwdV1UmsmC+PMMEDmq-TyqGWORdYVfGq4AdZ6+iO2eQ6Q@mail.gmail.com>
Date:	Tue, 6 Mar 2012 18:27:32 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	KOSAKI Motohiro <kosaki.motohiro@...il.com>
Cc:	Mikulas Patocka <mpatocka@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Hugh Dickins <hughd@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Shaohua Li <shaohua.li@...el.com>,
	Michal Hocko <mhocko@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fix bug introduced in "mm: simplify find_vma_prev()"

On Tue, Mar 6, 2012 at 4:30 PM, KOSAKI Motohiro
<kosaki.motohiro@...il.com> wrote:
>
> Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
>
> I prefer to remove find_vma_prev() eventually. but this is good short term
> solution.

Ok, applied.

And then I committed an extra patch that removed the really obvious
cases of find_vma_prev() (ie where it immediately returns if the
resulting "vma" is NULL.

There may well be a few more cases that really only need find_vma(),
but if it wasn't totally obvious from the grep output with just a
couple of lines of context, I left it alone for now.

                Linus
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