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

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Message-ID: <20080929151319.GA25247@infradead.org>
Date:	Mon, 29 Sep 2008 11:13:19 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	Ingo Molnar <mingo@...e.hu>, 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>,
	Jeremy Kerr <jk@...abs.org>, linuxppc-dev@...abs.org,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: [PATCH] sputrace : use marker_synchronize_unregister()

On Mon, Sep 29, 2008 at 11:11:47AM -0400, Mathieu Desnoyers wrote:
> 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.
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