355 struct stress {  struct
386 static void dummy_load(struct stress *stress)  in dummy_load()  argument
393 	struct stress *stress = container_of(work, typeof(*stress), work);  in stress_inorder_work()  local
394 	const int nlocks = stress->nlocks;  in stress_inorder_work()
395 	struct ww_mutex *locks = stress->locks;  in stress_inorder_work()
419 			dummy_load(stress);  in stress_inorder_work()
439 	} while (!time_after(jiffies, stress->timeout));  in stress_inorder_work()
442 	kfree(stress);  in stress_inorder_work()
452 	struct stress *stress = container_of(work, typeof(*stress), work);  in stress_reorder_work()  local
459 	order = get_random_order(stress->nlocks);  in stress_reorder_work()
463 	for (n = 0; n < stress->nlocks; n++) {  in stress_reorder_work()
468 		ll->lock = &stress->locks[order[n]];  in stress_reorder_work()
496 		dummy_load(stress);  in stress_reorder_work()
501 	} while (!time_after(jiffies, stress->timeout));  in stress_reorder_work()
507 	kfree(stress);  in stress_reorder_work()
512 	struct stress *stress = container_of(work, typeof(*stress), work);  in stress_one_work()  local
513 	const int nlocks = stress->nlocks;  in stress_one_work()
514 	struct ww_mutex *lock = stress->locks + (get_random_int() % nlocks);  in stress_one_work()
520 			dummy_load(stress);  in stress_one_work()
527 	} while (!time_after(jiffies, stress->timeout));  in stress_one_work()
529 	kfree(stress);  in stress_one_work()
537 static int stress(int nlocks, int nthreads, unsigned int flags)  in stress()  function
550 		struct stress *stress;  in stress()  local
572 		stress = kmalloc(sizeof(*stress), GFP_KERNEL);  in stress()
573 		if (!stress)  in stress()
576 		INIT_WORK(&stress->work, fn);  in stress()
577 		stress->locks = locks;  in stress()
578 		stress->nlocks = nlocks;  in stress()
579 		stress->timeout = jiffies + 2*HZ;  in stress()
581 		queue_work(wq, &stress->work);  in stress()
623 	ret = stress(16, 2*ncpus, STRESS_INORDER);  in test_ww_mutex_init()
627 	ret = stress(16, 2*ncpus, STRESS_REORDER);  in test_ww_mutex_init()
631 	ret = stress(4095, hweight32(STRESS_ALL)*ncpus, STRESS_ALL);  in test_ww_mutex_init()