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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-04-06 11:45:00 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-07 10:48:54 +0200
commit9c03d88e328d5f28f13191622c2ea1349c36b799 (patch)
tree3c9c9757f9cada69ac32a04dba7e18be99d224dc /include/linux/perf_counter.h
parenta2e87d06ddbe6e6fdb8d6d2e5e985efe4efb07dd (diff)
perf_counter: add more context information
Change the callchain context entries to u16, so as to gain some space. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090406094517.457320003@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/perf_counter.h')
-rw-r--r--include/linux/perf_counter.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index e22ab47a2f4..f9d5cf0bfbd 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -507,10 +507,10 @@ 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 254
+#define MAX_STACK_DEPTH 255
struct perf_callchain_entry {
- u32 nr, hv, kernel, user;
+ u16 nr, hv, kernel, user;
u64 ip[MAX_STACK_DEPTH];
};