192 	struct test_abba *abba = container_of(work, typeof(*abba), work);  in test_abba_work()  local
196 	ww_acquire_init_noinject(&ctx, abba->class);  in test_abba_work()
197 	if (!abba->trylock)  in test_abba_work()
198 		ww_mutex_lock(&abba->b_mutex, &ctx);  in test_abba_work()
200 		WARN_ON(!ww_mutex_trylock(&abba->b_mutex, &ctx));  in test_abba_work()
202 	WARN_ON(READ_ONCE(abba->b_mutex.ctx) != &ctx);  in test_abba_work()
204 	complete(&abba->b_ready);  in test_abba_work()
205 	wait_for_completion(&abba->a_ready);  in test_abba_work()
207 	err = ww_mutex_lock(&abba->a_mutex, &ctx);  in test_abba_work()
208 	if (abba->resolve && err == -EDEADLK) {  in test_abba_work()
209 		ww_mutex_unlock(&abba->b_mutex);  in test_abba_work()
210 		ww_mutex_lock_slow(&abba->a_mutex, &ctx);  in test_abba_work()
211 		err = ww_mutex_lock(&abba->b_mutex, &ctx);  in test_abba_work()
215 		ww_mutex_unlock(&abba->a_mutex);  in test_abba_work()
216 	ww_mutex_unlock(&abba->b_mutex);  in test_abba_work()
219 	abba->result = err;  in test_abba_work()
224 	struct test_abba abba;  in test_abba()  local
228 	ww_mutex_init(&abba.a_mutex, class);  in test_abba()
229 	ww_mutex_init(&abba.b_mutex, class);  in test_abba()
230 	INIT_WORK_ONSTACK(&abba.work, test_abba_work);  in test_abba()
231 	init_completion(&abba.a_ready);  in test_abba()
232 	init_completion(&abba.b_ready);  in test_abba()
233 	abba.class = class;  in test_abba()
234 	abba.trylock = trylock;  in test_abba()
235 	abba.resolve = resolve;  in test_abba()
237 	queue_work(wq, &abba.work);  in test_abba()
241 		ww_mutex_lock(&abba.a_mutex, &ctx);  in test_abba()
243 		WARN_ON(!ww_mutex_trylock(&abba.a_mutex, &ctx));  in test_abba()
245 	WARN_ON(READ_ONCE(abba.a_mutex.ctx) != &ctx);  in test_abba()
247 	complete(&abba.a_ready);  in test_abba()
248 	wait_for_completion(&abba.b_ready);  in test_abba()
250 	err = ww_mutex_lock(&abba.b_mutex, &ctx);  in test_abba()
252 		ww_mutex_unlock(&abba.a_mutex);  in test_abba()
253 		ww_mutex_lock_slow(&abba.b_mutex, &ctx);  in test_abba()
254 		err = ww_mutex_lock(&abba.a_mutex, &ctx);  in test_abba()
258 		ww_mutex_unlock(&abba.b_mutex);  in test_abba()
259 	ww_mutex_unlock(&abba.a_mutex);  in test_abba()
262 	flush_work(&abba.work);  in test_abba()
263 	destroy_work_on_stack(&abba.work);  in test_abba()
267 		if (err || abba.result) {  in test_abba()
269 			       __func__, err, abba.result);  in test_abba()
273 		if (err != -EDEADLK && abba.result != -EDEADLK) {  in test_abba()
275 			       __func__, err, abba.result);  in test_abba()