locking/lockdep: Track number of zapped lock chains

Add a new counter nr_zapped_lock_chains to track the number lock chains
that have been removed.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200206152408.24165-6-longman@redhat.com
This commit is contained in:
Waiman Long
2020-02-06 10:24:07 -05:00
committed by Ingo Molnar
parent 836bd74b59
commit 797b82eb90
3 changed files with 7 additions and 0 deletions

View File

@@ -349,6 +349,10 @@ static int lockdep_stats_show(struct seq_file *m, void *v)
seq_puts(m, "\n");
seq_printf(m, " zapped classes: %11lu\n",
nr_zapped_classes);
#ifdef CONFIG_PROVE_LOCKING
seq_printf(m, " zapped lock chains: %11lu\n",
nr_zapped_lock_chains);
#endif
return 0;
}