linux-kernel - Re: [PATCH] sputrace : use marker_synchronize

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Date:	Tue, 30 Sep 2008 11:55:20 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeremy Kerr <jk@...abs.org>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	linuxppc-dev@...abs.org, Christoph Hellwig <hch@...radead.org>,
	cbe-oss-dev@...abs.org
Subject: Re: [PATCH] sputrace : use marker_synchronize_unregister()


* Jeremy Kerr <jk@...abs.org> wrote:

> Mathieu,
> 
> > We need a marker_synchronize_unregister() before the end of exit() to
> > make sure every probe callers have exited the non preemptible section
> > and thus are not executing the probe code anymore.
> 
> Looks good - added to spufs.git.

that wont work very well as the patch relies on the new 
marker_synchronize_unregister() facility.

	Ingo
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