perf, x86: Extract PEBS/BTS buffer free routines

So that we may grow additional call-sites..

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Stephane Eranian <eranian@google.com>
LKML-Reference: <20101019134808.196793164@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
1 file changed