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authorWaiman Long <longman@redhat.com>2020-02-06 10:24:07 -0500
committerIngo Molnar <mingo@kernel.org>2020-02-11 13:10:51 +0100
commit797b82eb906eeba24dcd6e9ab92faef01fc684cb (patch)
treeb27a8f62357cc70217b633ec3fde24d4f492ddf2 /kernel/locking/lockdep_proc.c
parent836bd74b5957779171c9648e9e29145fc089fffe (diff)
downloadlinux-797b82eb906eeba24dcd6e9ab92faef01fc684cb.tar.bz2
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
Diffstat (limited to 'kernel/locking/lockdep_proc.c')
-rw-r--r--kernel/locking/lockdep_proc.c4
1 files changed, 4 insertions, 0 deletions
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;
}