perf_counter: re-arrange the perf_event_type
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Mon, 30 Mar 2009 17:07:12 +0000 (19:07 +0200)
committerIngo Molnar <mingo@elte.hu>
Mon, 6 Apr 2009 07:30:42 +0000 (09:30 +0200)
commit5ed00415e304203a0a9dcaef226d6d3f1106070e
tree5e1d53fcae6ea973dfb61972f38c269a8fe095bc
parent78d613eb129fc4edf0e2cabfcc6a4c5285482d21
perf_counter: re-arrange the perf_event_type

Breaks ABI yet again :-)

Change the event type so that [0, 2^31-1] are regular event types, but
[2^31, 2^32-1] forms a bitmask for overflow events.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Orig-LKML-Reference: <20090330171024.047961770@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
include/linux/perf_counter.h
kernel/perf_counter.c