linux-kernel - Re: [rfc][patch] mm: lockdep page lock

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Message-ID: <20100316062032.GB22651@elte.hu>
Date:	Tue, 16 Mar 2010 07:20:32 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Nick Piggin <npiggin@...e.de>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [rfc][patch] mm: lockdep page lock


* Nick Piggin <npiggin@...e.de> wrote:

> Page lock has very complex dependencies, so it would be really nice to add 
> lockdep support for it.

Just wondering - has your patch shown any suspect areas of code already, in 
the testing you did?

Maybe it should be test-driven for a while, in a non-append-only tree such as 
-mm, to see whether it's finding real bugs.

	Ingo
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