From 797b82eb906eeba24dcd6e9ab92faef01fc684cb Mon Sep 17 00:00:00 2001 From: Waiman Long Date: Thu, 6 Feb 2020 10:24:07 -0500 Subject: 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 Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Link: https://lkml.kernel.org/r/20200206152408.24165-6-longman@redhat.com --- kernel/locking/lockdep_proc.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'kernel/locking/lockdep_proc.c') diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c index 53c2a2ab4f07..524580db4779 100644 --- a/kernel/locking/lockdep_proc.c +++ b/kernel/locking/lockdep_proc.c @@ -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; } -- cgit v1.2.3