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>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 5428ba120d78..90cce0c74a03 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -513,10 +513,10 @@ extern void perf_counter_mmap(unsigned long addr, unsigned long len,
 extern void perf_counter_munmap(unsigned long addr, unsigned long len,
                                 unsigned long pgoff, struct file *file);
 
-#define MAX_STACK_DEPTH         255
+#define MAX_STACK_DEPTH         254
 
 struct perf_callchain_entry {
-        u64     nr;
+        u32     nr, hv, kernel, user;
         u64     ip[MAX_STACK_DEPTH];
 };