linux-kernel - Re: [PATCH 19/20] mm: Convert anon

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Message-Id: <20110419130732.da620ce7.akpm@linux-foundation.org>
Date:	Tue, 19 Apr 2011 13:07:32 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Andrea Arcangeli <aarcange@...hat.com>,
	Avi Kivity <avi@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rik van Riel <riel@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-mm@...ck.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	David Miller <davem@...emloft.net>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Mel Gorman <mel@....ul.ie>, Nick Piggin <npiggin@...nel.dk>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Yanmin Zhang <yanmin_zhang@...ux.intel.com>,
	Hugh Dickins <hughd@...gle.com>
Subject: Re: [PATCH 19/20] mm: Convert anon_vma->lock to a mutex

On Fri, 01 Apr 2011 14:13:17 +0200
Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote:

> Straight fwd conversion of anon_vma->lock to a mutex.

What workloads do we expect might be adversely affected by this? 
Were such workloads tested?  With what results?



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