perf_counter: Separate out attr->type from attr->config

Counter type is a frequently used value and we do a lot of
bit juggling by encoding and decoding it from attr->config.

Clean this up by creating a separate attr->type field.

Also clean up the various similarly complex user-space bits
all around counter attribute management.

The net improvement is significant, and it will be easier
to add a new major type (which is what triggered this cleanup).

(This changes the ABI, all tools are adapted.)
(PowerPC build-tested.)

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 5 deletions

diff --git a/Documentation/perf_counter/util/parse-events.h b/Documentation/perf_counter/util/parse-events.h
index 0da306bb9028..542971c495bd 100644
--- a/Documentation/perf_counter/util/parse-events.h
+++ b/Documentation/perf_counter/util/parse-events.h
@@ -3,12 +3,9 @@
  * Parse symbolic events/counts passed in as options:
  */
 
-extern int nr_counters;
-extern __u64                    event_id[MAX_COUNTERS];
-extern int                      event_mask[MAX_COUNTERS];
+extern int                      nr_counters;
 
-#define EVENT_MASK_KERNEL       1
-#define EVENT_MASK_USER         2
+extern struct perf_counter_attr attrs[MAX_COUNTERS];
 
 extern char *event_name(int ctr);