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>
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@ -601,6 +601,10 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
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static void seq_header(struct seq_file *m)
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{
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seq_printf(m, "lock_stat version 0.3\n");
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if (unlikely(!debug_locks))
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seq_printf(m, "*WARNING* lock debugging disabled!! - possibly due to a lockdep warning\n");
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seq_line(m, '-', 0, 40 + 1 + 10 * (14 + 1));
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seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s "
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"%14s %14s\n",
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