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lockdep: Introduce lockdep_assert_held()

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Add a lockdep helper to validate that we indeed are the owner
of a lock.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2009-07-20 19:16:29 +02:00
committed by Ingo Molnar
parent 98c33eddaf
commit f607c66857
3 changed files with 43 additions and 0 deletions
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kernel/sched.c
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@@ -6609,6 +6609,8 @@ int cond_resched_lock(spinlock_t *lock)
int resched = should_resched();
int ret = 0;
lockdep_assert_held(lock);
if (spin_needbreak(lock) || resched) {
spin_unlock(lock);
if (resched)