29 	struct vhost_task *vtsk = data;  in vhost_task_fn()  local
44 		if (test_bit(VHOST_TASK_FLAGS_STOP, &vtsk->flags)) {  in vhost_task_fn()
49 		did_work = vtsk->fn(vtsk->data);  in vhost_task_fn()
54 	mutex_lock(&vtsk->exit_mutex);  in vhost_task_fn()
60 	if (!test_bit(VHOST_TASK_FLAGS_STOP, &vtsk->flags)) {  in vhost_task_fn()
61 		set_bit(VHOST_TASK_FLAGS_KILLED, &vtsk->flags);  in vhost_task_fn()
62 		vtsk->handle_sigkill(vtsk->data);  in vhost_task_fn()
64 	mutex_unlock(&vtsk->exit_mutex);  in vhost_task_fn()
65 	complete(&vtsk->exited);  in vhost_task_fn()
76 void vhost_task_wake(struct vhost_task *vtsk)  in vhost_task_wake()  argument
78 	wake_up_process(vtsk->task);  in vhost_task_wake()
89 void vhost_task_stop(struct vhost_task *vtsk)  in vhost_task_stop()  argument
91 	mutex_lock(&vtsk->exit_mutex);  in vhost_task_stop()
92 	if (!test_bit(VHOST_TASK_FLAGS_KILLED, &vtsk->flags)) {  in vhost_task_stop()
93 		set_bit(VHOST_TASK_FLAGS_STOP, &vtsk->flags);  in vhost_task_stop()
94 		vhost_task_wake(vtsk);  in vhost_task_stop()
96 	mutex_unlock(&vtsk->exit_mutex);  in vhost_task_stop()
102 	wait_for_completion(&vtsk->exited);  in vhost_task_stop()
103 	kfree(vtsk);  in vhost_task_stop()
131 	struct vhost_task *vtsk;  in vhost_task_create()  local
134 	vtsk = kzalloc(sizeof(*vtsk), GFP_KERNEL);  in vhost_task_create()
135 	if (!vtsk)  in vhost_task_create()
137 	init_completion(&vtsk->exited);  in vhost_task_create()
138 	mutex_init(&vtsk->exit_mutex);  in vhost_task_create()
139 	vtsk->data = arg;  in vhost_task_create()
140 	vtsk->fn = fn;  in vhost_task_create()
141 	vtsk->handle_sigkill = handle_sigkill;  in vhost_task_create()
143 	args.fn_arg = vtsk;  in vhost_task_create()
147 		kfree(vtsk);  in vhost_task_create()
151 	vtsk->task = tsk;  in vhost_task_create()
152 	return vtsk;  in vhost_task_create()
160 void vhost_task_start(struct vhost_task *vtsk)  in vhost_task_start()  argument
162 	wake_up_new_task(vtsk->task);  in vhost_task_start()