perf_counter: Introduce struct for sample data

For easy extension of the sample data, put it in a structure.

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

1 files changed, 8 insertions, 2 deletions

diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 282d8cc48980..d8c0eb480f9a 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -605,8 +605,14 @@ extern int hw_perf_group_sched_in(struct perf_counter *group_leader,
                struct perf_counter_context *ctx, int cpu);
 extern void perf_counter_update_userpage(struct perf_counter *counter);
 
-extern int perf_counter_overflow(struct perf_counter *counter,
-                                 int nmi, struct pt_regs *regs, u64 addr);
+struct perf_sample_data {
+        struct pt_regs  *regs;
+        u64             addr;
+};
+
+extern int perf_counter_overflow(struct perf_counter *counter, int nmi,
+                                 struct perf_sample_data *data);
+
 /*
  * Return 1 for a software counter, 0 for a hardware counter
  */