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locking/lockdep: Track number of zapped lock chains

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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
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kernel/locking/lockdep_internals.h
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@@ -131,6 +131,7 @@ struct lock_class *lock_chain_get_class(struct lock_chain *chain, int i);
extern unsigned long nr_lock_classes;
extern unsigned long nr_zapped_classes;
extern unsigned long nr_zapped_lock_chains;
extern unsigned long nr_list_entries;
long lockdep_next_lockchain(long i);
unsigned long lock_chain_count(void);