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authorLi Zefan <lizf@cn.fujitsu.com>2009-06-26 11:15:37 +0800
committerIngo Molnar <mingo@elte.hu>2009-06-26 09:25:42 +0200
commit0296e4254f3318e0dcad9706fa1daf8e5addc1e9 (patch)
tree7568f2372564b45fa79bbcdd36273999cae0de8c
parent1155de47cd66d0c496d5a6fb2223e980ef1285b2 (diff)
downloadop-kernel-dev-0296e4254f3318e0dcad9706fa1daf8e5addc1e9.zip
op-kernel-dev-0296e4254f3318e0dcad9706fa1daf8e5addc1e9.tar.gz
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>
-rw-r--r--kernel/trace/ftrace.c4
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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