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

From: Frederic Weisbecker
Date: Mon Jan 18 2010 - 08:01:06 EST

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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