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Date: Fri, 1 May 2009 22:36:39 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
       LKML <linux-kernel@vger.kernel.org>, Jeff Mahoney <jeffm@suse.com>,
       ReiserFS Development List <reiserfs-devel@vger.kernel.org>,
       Chris Mason <chris.mason@oracle.com>,
       Alexander Beregalov <a.beregalov@gmail.com>,
       Alessio Igor Bogani <abogani@texware.it>,
       Jonathan Corbet <corbet@lwn.net>,
       Alexander Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH 0/6] kill-the-BKL/reiserfs3: performance improvements,
	faster than Bkl based scheme
Message-ID: <20090501203639.GA9396@elte.hu>
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* Ingo Molnar <mingo@elte.hu> wrote:

> The BKL is clearly removed at a faster reate with such debugging 
> measures in place. With such measures the BKL _really_ hurts, and 
> very visibly so - and that results in active removal.

Btw., if you can think of any way to create a cleaner debug tool 
here i'd be glad to start a new tree that adds only _that_ tool - 
and that could perhaps be dealt with independently and possibly 
pulled upstream too, if clean enough.

The problem is, i think it would still quack like a global mutex, 
would walk like a global mutex and would look like a global mutex
:-/

	Ingo