Re: [PATCH] tracing/profile: Fix profile_disable vs module_unload

[Peter Zijlstra]

On Tue, 2009-08-25 at 12:47 +0200, Peter Zijlstra wrote:
> On Tue, 2009-08-25 at 12:39 +0200, Ingo Molnar wrote:
> 
> > > Do you really wish to burden every tracepoint user with the extra 
> > > logic needed to deal with modules?
> > 
> > Not necessarily - i'm just outlining why i think that the 'dont 
> > allow subsystems to utilize tracepoint callbacks' is a restriction 
> > we should not live with voluntarily.
> 
> Well, unless someone has a bright idea that's what it comes down to. 

OK, I still think modules probing their own tracepoints its stupid [*],
but what you could do is iterate the tracepoint's callback list and see
if it has a callback outside of the module code section and then fail
the unload.

[*] in the really utterly fundamentally wrong stupid class.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/