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>
{
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;