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.
