Re: [RFC] [PATCH 7/7] Ftrace plugin for Uprobes

[Frederic Weisbecker]

On Thu, Jan 14, 2010 at 01:29:09PM +0100, Peter Zijlstra wrote:
> On Thu, 2010-01-14 at 13:23 +0100, Frederic Weisbecker wrote:
> > 
> > I see, so what you suggest is to have the probe set up
> > as generic first. Then the process that activates it
> > becomes a consumer, right?
> 
> Right, so either we have it always on, for things like ftrace, 
> 
>   in which case the creation traverses rmap and installs the probes
>   all existing mmap()s, and a mmap() hook will install it on all new
>   ones.
> 
> Or they're strictly consumer driver, like perf, in which case the act of
> enabling the event will install the probe (if its not there yet).
> 


Looks like a good plan.

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