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Subject[tip:tracing/urgent] ftrace: Fix the output of profile
Commit-ID:  0296e4254f3318e0dcad9706fa1daf8e5addc1e9
Gitweb: http://git.kernel.org/tip/0296e4254f3318e0dcad9706fa1daf8e5addc1e9
Author: Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Fri, 26 Jun 2009 11:15:37 +0800
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Fri, 26 Jun 2009 09:25:42 +0200

ftrace: Fix the output of profile

The first entry of the ftrace profile was always skipped when
reading trace_stat/functionX.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4A443D59.4080307@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
kernel/trace/ftrace.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 71a52c1..f3716bf 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -291,7 +291,9 @@ function_stat_next(void *v, int idx)
pg = (struct ftrace_profile_page *)((unsigned long)rec & PAGE_MASK);

again:
- rec++;
+ if (idx != 0)
+ rec++;
+
if ((void *)rec >= (void *)&pg->records[pg->index]) {
pg = pg->next;
if (!pg)

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