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Date: Wed, 7 May 2008 23:48:24 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Andi Kleen <andi@firstfloor.org>, Matthew Wilcox <matthew@wil.cx>,
       LKML <linux-kernel@vger.kernel.org>,
       Alexander Viro <viro@ftp.linux.org.uk>
Subject: Re: AIM7 40% regression with 2.6.26-rc1
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On Thu, 8 May 2008 08:43:40 +0200 Ingo Molnar <mingo@elte.hu> wrote:

> great! Yanmin, could you please also check the other patch i sent (also 
> attached below), does it solve the regression similarly?
> 
> 	Ingo
> 
> ---
>  lib/kernel_lock.c |    9 ++++++---

but but but.  Some other users of down() have presumably also regressed.  We just
have't found the workload to demonstrate that yet.