diff options
| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2010-04-05 17:11:05 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-04-05 11:01:22 -0400 |
| commit | aa27497c2fb4c7f57706099bd489e683e5cc3e3b (patch) | |
| tree | 66fab7036e68592003548fd753b31d906d38b7ee /kernel/trace | |
| parent | ff0ff84a0767df48d728c36510365344a7e7d582 (diff) | |
| download | blackbird-op-linux-aa27497c2fb4c7f57706099bd489e683e5cc3e3b.tar.gz blackbird-op-linux-aa27497c2fb4c7f57706099bd489e683e5cc3e3b.zip | |
tracing: Fix uninitialized variable of tracing/trace output
Because a local variable is not initialized, I got these
when I did 'cat tracing/trace'. (not trace_pipe):
CPU:0 [LOST 18446744071579453134 EVENTS]
ps-3099 [000] 560.770221: lock_acquire: ffff880030865010 &(&dentry->d_lock)->rlock
CPU:0 [LOST 18446744071579453134 EVENTS]
ps-3099 [000] 560.770221: lock_release: ffff880030865010 &(&dentry->d_lock)->rlock
CPU:0 [LOST 18446612133255294080 EVENTS]
ps-3099 [000] 560.770221: lock_acquire: ffff880030865010 &(&dentry->d_lock)->rlock
CPU:0 [LOST 18446744071579453134 EVENTS]
ps-3099 [000] 560.770222: lock_release: ffff880030865010 &(&dentry->d_lock)->rlock
CPU:0 [LOST 18446744071579453134 EVENTS]
ps-3099 [000] 560.770222: lock_release: ffffffff816cfb98 dcache_lock
See peek_next_entry(), it does not set *lost_events when we 'cat tracing/trace'
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <4BB9A929.2000303@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 0498bebcbfd1..b9be232352b8 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1571,7 +1571,7 @@ __find_next_entry(struct trace_iterator *iter, int *ent_cpu, { struct ring_buffer *buffer = iter->tr->buffer; struct trace_entry *ent, *next = NULL; - unsigned long lost_events, next_lost = 0; + unsigned long lost_events = 0, next_lost = 0; int cpu_file = iter->cpu_file; u64 next_ts = 0, ts; int next_cpu = -1; |
