linux-kernel - Re: module-placed markers/tracepoints

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Message-ID: <20080729230100.GA27711@redhat.com>
Date:	Tue, 29 Jul 2008 19:01:00 -0400
From:	"Frank Ch. Eigler" <fche@...hat.com>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: module-placed markers/tracepoints

Hi -

On Tue, Jul 29, 2008 at 06:41:16PM -0400, Mathieu Desnoyers wrote:
> > Some locals are wondering -- is there code for (or need for new code
> > for) incrementing module reference counts while markers and/or
> > tracepoints resident in modules have active clients?
> 
> Probe module unloading is supposed to be done automatically assuming the
> following module unload behavior [...]

The question was more that if module-placed markers/tracepoints are
armed, is there any mechanism to prevent the modules' unloading.  For
kprobes, there is.

- FChE
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