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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 <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Peter Zijlstra 2009-07-20 19:16:29 +02:00 • committed by Ingo Molnar
commit f607c66857
3 changed files with 43 additions and 0 deletions
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2
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)