perf_counter: add more context information
Put in counts to tell which ips belong to what context.
-----
| | hv
| --
nr | | kernel
| --
| | user
-----
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Orig-LKML-Reference: <20090402091319.493101305@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 9bcab10..f105a6e 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -1819,7 +1819,7 @@
callchain = perf_callchain(regs);
if (callchain) {
- callchain_size = (1 + callchain->nr) * sizeof(u64);
+ callchain_size = (2 + callchain->nr) * sizeof(u64);
header.type |= __PERF_EVENT_CALLCHAIN;
header.size += callchain_size;