Re: [PATCH 1/4] tracing: Use the perf recursion protection from trace event

Peter Zijlstra
2009-11-22T16:51:01Z

On Sun, 2009-11-22 at 17:37 +0100, Frederic Weisbecker wrote:

> That's cleaner but adds an unnecessary overhead in the trace event
> path. We already disable the interrupts there. That's why I preferred
> to let the caller decide.

The trace path is already far from optimal, so I'd rather penalize that
than the regular swcounter path.