Revert "perf: Fix exit() vs PERF_FORMAT_GROUP"

This reverts commit 4fd38e4595e2f6c9d27732c042a0e16b2753049c.

It causes various crashes and hangs when events are activated.

The cause is not fully understood yet but we need to revert it
because the effects are severe.

Reported-by: Stephane Eranian <eranian@google.com>
Reported-by: Lin Ming <ming.m.lin@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 4924c96d7e2d..3fd5c82e0e18 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -575,7 +575,6 @@ struct pmu {
  * enum perf_event_active_state - the states of a event
  */
 enum perf_event_active_state {
-        PERF_EVENT_STATE_FREE           = -3,
         PERF_EVENT_STATE_ERROR          = -2,
         PERF_EVENT_STATE_OFF            = -1,
         PERF_EVENT_STATE_INACTIVE       =  0,