linux-kernel - Re: [RFC PATCH][3.0] Tracepoint: dissociate from module mutex

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Message-ID: <1313002838.18583.261.camel@gandalf.stny.rr.com>
Date:	Wed, 10 Aug 2011 15:00:38 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Jason Baron <jbaron@...hat.com>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Peter Zijlstra <peterz@...radead.org>, tglx@...utronix.de
Subject: Re: [RFC PATCH][3.0] Tracepoint: dissociate from module mutex

On Wed, 2011-08-10 at 14:05 -0400, Jason Baron wrote:

> This is similar to the approach we have taken in the jump label code -
> on module insert/remove we store pointers into module table, so that we
> don't require the module_mutex during update time. It has been working
> well there, so this design makes sense to me at least.

It is also similar to what both ftrace and trace events do as well.

-- Steve


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