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From: Ingo Molnar <mingo@elte.hu>
To: Vegard Nossum <vegard.nossum@gmail.com>
Cc: linux-kernel@vger.kernel.org,
	Pekka Enberg <penberg@cs.helsinki.fi>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] kmemcheck: lazy checking for MOVS instructions
Date: Fri, 12 Sep 2008 11:06:07 +0200	[thread overview]
Message-ID: <20080912090607.GA6632@elte.hu> (raw)
In-Reply-To: <20080911154616.GA16042@localhost.localdomain>


* Vegard Nossum <vegard.nossum@gmail.com> wrote:

> Comments, anyone?
> 
> >From 36190b27a77b8ff5bbea09cf765c1f335c3920e4 Mon Sep 17 00:00:00 2001
> From: Vegard Nossum <vegard.nossum@gmail.com>
> Date: Thu, 11 Sep 2008 17:31:07 +0200
> Subject: [PATCH] kmemcheck: lazy checking for MOVS instructions
> 
> This patch adds the support for lazy (as opposed to eager) checking 
> for [REP] MOVS instructions (mostly used in memcpy()). This means that 
> if both the source and destination addresses are tracked by kmemcheck, 
> we copy the shadow memory instead of checking that it is initialized.
> 
> In this way, we get rid of a few more false positives.

looks good to me. I've applied it to tip/kmemcheck - but can zap it and 
pull your for-tip branch as well.

	Ingo

  reply	other threads:[~2008-09-12  9:06 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-11 15:46 [PATCH] kmemcheck: lazy checking for MOVS instructions Vegard Nossum
2008-09-12  9:06 ` Ingo Molnar [this message]
2008-09-12 17:09   ` Vegard Nossum
2008-09-14 15:21     ` Ingo Molnar

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