Re: [patch 1/2] x86_64 page fault NMI-safe

[Steven Rostedt]

[ /me removes the duplicate email of himself! ]

On Wed, 2010-07-14 at 19:11 -0400, Mathieu Desnoyers wrote:
> > 
> > So, when an event triggers in perf, we sometimes want to capture the stacktrace
> > that led to the event.
> > 
> > We want this stacktrace (here we call that a callchain) to be recorded
> > locklessly. So we want this callchain buffer per cpu, with the following
> > type:
> 
> Ah OK, so you mean that perf now has 2 different ring buffer implementations ?
> How about using a single one that is generic enough to handle perf and ftrace
> needs instead ?
> 
> (/me runs away quickly before the lightning strikes) ;)
> 

To be fair, that's just a temp buffer.

-- Steve

(/me sends this to try to remove the dup email he's getting )

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