diff options
| author | Peter Zijlstra <[email protected]> | 2013-11-06 17:42:30 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2013-11-11 12:41:34 +0100 |
| commit | 838cc7b488f89ee642fd8336e8e1b620c8c3ece2 (patch) | |
| tree | fddaa3f2d4a5125969707106e87112a3c4c2fd53 /kernel | |
| parent | 67a6de49bf545c34eb8dee99abbb92d9ea268200 (diff) | |
lockdep/proc: Fix lock-time avg computation
> kernel/locking/lockdep_proc.c: In function 'seq_lock_time':
> >> kernel/locking/lockdep_proc.c:424:23: warning: comparison of distinct pointer types lacks a cast [enabled by default]
>
> 418 static void seq_lock_time(struct seq_file *m, struct lock_time *lt)
> 419 {
> 420 seq_printf(m, "%14lu", lt->nr);
> 421 seq_time(m, lt->min);
> 422 seq_time(m, lt->max);
> 423 seq_time(m, lt->total);
> > 424 seq_time(m, lt->nr ? do_div(lt->total, lt->nr) : 0);
> 425 }
My compiler refuses to actually say that; but it looks wrong in that
do_div() returns the remainder, not the divisor.
Reported-by: Fengguang Wu <[email protected]>
Tested-by: Fengguang Wu <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/locking/lockdep_proc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c index 09220656d888..ef43ac4bafb5 100644 --- a/kernel/locking/lockdep_proc.c +++ b/kernel/locking/lockdep_proc.c @@ -421,7 +421,7 @@ static void seq_lock_time(struct seq_file *m, struct lock_time *lt) seq_time(m, lt->min); seq_time(m, lt->max); seq_time(m, lt->total); - seq_time(m, lt->nr ? do_div(lt->total, lt->nr) : 0); + seq_time(m, lt->nr ? div_s64(lt->total, lt->nr) : 0); } static void seq_stats(struct seq_file *m, struct lock_stat_data *data) |