lockdep: Fix missing entry in /proc/lock_stat
One entry is missing in the output of /proc/lock_stat.
The cause is, when ls_start() is called the 2nd time, we should
start from stats[@pos-1] but not stats[@pos], because pos == 0
is the header.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <4A88ED15.20800@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index fba81f1..5dbe30b 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -634,7 +634,7 @@
if (*pos == 0)
return SEQ_START_TOKEN;
- data->iter = data->stats + *pos;
+ data->iter = data->stats + (*pos - 1);
if (data->iter >= data->iter_end)
data->iter = NULL;