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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-02-14 16:59:04 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-14 23:28:28 +0100 |
| commit | 9833f8cb952b9aa3f98a71e7bef8820cee3261a0 (patch) | |
| tree | 9f88133ebedc6737cb41f43400088a2c6b1f2310 | |
| parent | lockdep: use stringify.h (diff) | |
| download | linux-9833f8cb952b9aa3f98a71e7bef8820cee3261a0.tar.xz linux-9833f8cb952b9aa3f98a71e7bef8820cee3261a0.zip | |
lockstat: warn about disabled lock debugging
Avoid confusion and clearly state lock debugging got disabled.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/lockdep_proc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c index b51064ce564a..d7135aa2d2c4 100644 --- a/kernel/lockdep_proc.c +++ b/kernel/lockdep_proc.c @@ -601,6 +601,10 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data) static void seq_header(struct seq_file *m) { seq_printf(m, "lock_stat version 0.3\n"); + + if (unlikely(!debug_locks)) + seq_printf(m, "*WARNING* lock debugging disabled!! - possibly due to a lockdep warning\n"); + seq_line(m, '-', 0, 40 + 1 + 10 * (14 + 1)); seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s " "%14s %14s\n", |