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[PATCH] lockdep: show more details about self-test failures
Make the locking self-test failures (of 'FAILURE' type) easier to debug by printing more information. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -24,7 +24,7 @@ extern int debug_locks_off(void);
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int __ret = 0; \
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\
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if (unlikely(c)) { \
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if (debug_locks_off()) \
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if (debug_locks_silent || debug_locks_off()) \
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WARN_ON(1); \
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__ret = 1; \
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} \
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@ -77,6 +77,9 @@ void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
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void debug_mutex_unlock(struct mutex *lock)
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{
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if (unlikely(!debug_locks))
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return;
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DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info());
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DEBUG_LOCKS_WARN_ON(lock->magic != lock);
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DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
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@ -963,7 +963,9 @@ static void dotest(void (*testcase_fn)(void), int expected, int lockclass_mask)
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printk("failed|");
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} else {
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unexpected_testcase_failures++;
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printk("FAILED|");
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dump_stack();
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}
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} else {
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testcase_successes++;
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