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From: Arjan van de Ven <arjan@infradead.org>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: lockdep: how to tell it multiple pte locks is OK?
Date: Sun, 7 Oct 2007 09:58:53 -0700	[thread overview]
Message-ID: <20071007095853.13a8755d@laptopd505.fenrus.org> (raw)
In-Reply-To: <47087D45.2010904@goop.org>

On Sat, 06 Oct 2007 23:31:33 -0700

> I'm presume I'm the first person to try holding multiple pte locks at
> once, so there's no existing locking order for these locks.  I'm
> always traversing and locking the pagetable in virtual address order
> (and this seems like a sane-enough rule for anyone else who wants to
> hold multiple pte locks).

I'm not sure that's a valid assumption in light of things like sharing
pagetables between processes etc etc..
(granted, that one is out of tree right now but I still hope it'll go
in some day:)

  parent reply	other threads:[~2007-10-07 16:59 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-07  6:31 Jeremy Fitzhardinge
2007-10-07  8:29 ` Peter Zijlstra
2007-10-07 15:06   ` Jeremy Fitzhardinge
2007-10-07 16:58 ` Arjan van de Ven [this message]
2007-10-07 17:17   ` Jeremy Fitzhardinge
2007-10-07 17:46     ` Arjan van de Ven
2007-10-09  0:20       ` Jeremy Fitzhardinge

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