linux-kernel - Re: [PATCH -v2] rmap: make anon_vma_prepare link in all the anon

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Message-ID: <20100410003110.GI28964@cmpxchg.org>
Date:	Sat, 10 Apr 2010 02:31:10 +0200
From:	Johannes Weiner <hannes@...xchg.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Borislav Petkov <bp@...en8.de>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Nick Piggin <npiggin@...e.de>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	sgunderson@...foot.com
Subject: Re: [PATCH -v2] rmap: make anon_vma_prepare link in all the anon_vmas of a mergeable VMA

On Fri, Apr 09, 2010 at 04:56:13PM -0700, Linus Torvalds wrote:
> So _instead_ of all the patches that have floated about, I would suggest 
> this simple change to "find_mergeable_anon_vma()" instead..

That leaves the chance that my code was correct and we leave a conceptual
error around somewhere that can materialize again.  But I am at a point
where simplification never sounded more blissful, so yeah, I like it :)

Let's hope it fixes Boris's issue.
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