42 static struct vfio {  struct
52 } vfio;  argument
111 	mutex_lock(&vfio.iommu_drivers_lock);  in vfio_register_iommu_driver()
114 	list_for_each_entry(tmp, &vfio.iommu_drivers_list, vfio_next) {  in vfio_register_iommu_driver()
116 			mutex_unlock(&vfio.iommu_drivers_lock);  in vfio_register_iommu_driver()
122 	list_add(&driver->vfio_next, &vfio.iommu_drivers_list);  in vfio_register_iommu_driver()
124 	mutex_unlock(&vfio.iommu_drivers_lock);  in vfio_register_iommu_driver()
134 	mutex_lock(&vfio.iommu_drivers_lock);  in vfio_unregister_iommu_driver()
135 	list_for_each_entry(driver, &vfio.iommu_drivers_list, vfio_next) {  in vfio_unregister_iommu_driver()
138 			mutex_unlock(&vfio.iommu_drivers_lock);  in vfio_unregister_iommu_driver()
143 	mutex_unlock(&vfio.iommu_drivers_lock);  in vfio_unregister_iommu_driver()
152 	return idr_alloc(&vfio.group_idr, group, 0, MINORMASK + 1, GFP_KERNEL);  in vfio_alloc_group_minor()
157 	idr_remove(&vfio.group_idr, minor);  in vfio_free_group_minor()
190 	mutex_unlock(&vfio.group_lock);  in vfio_group_unlock_and_free()
236 	mutex_lock(&vfio.group_lock);  in vfio_create_group()
239 	list_for_each_entry(tmp, &vfio.group_list, vfio_next) {  in vfio_create_group()
253 	dev = device_create(vfio.class, NULL,  in vfio_create_group()
254 			    MKDEV(MAJOR(vfio.group_devt), minor),  in vfio_create_group()
265 	list_add(&group->vfio_next, &vfio.group_list);  in vfio_create_group()
267 	mutex_unlock(&vfio.group_lock);  in vfio_create_group()
287 	device_destroy(vfio.class, MKDEV(MAJOR(vfio.group_devt), group->minor));  in vfio_group_release()
296 	kref_put_mutex(&group->kref, vfio_group_release, &vfio.group_lock);  in vfio_group_put()
313 	mutex_lock(&vfio.group_lock);  in vfio_group_try_get()
314 	list_for_each_entry(group, &vfio.group_list, vfio_next) {  in vfio_group_try_get()
317 			mutex_unlock(&vfio.group_lock);  in vfio_group_try_get()
321 	mutex_unlock(&vfio.group_lock);  in vfio_group_try_get()
331 	mutex_lock(&vfio.group_lock);  in vfio_group_get_from_iommu()
332 	list_for_each_entry(group, &vfio.group_list, vfio_next) {  in vfio_group_get_from_iommu()
335 			mutex_unlock(&vfio.group_lock);  in vfio_group_get_from_iommu()
339 	mutex_unlock(&vfio.group_lock);  in vfio_group_get_from_iommu()
348 	mutex_lock(&vfio.group_lock);  in vfio_group_get_from_minor()
349 	group = idr_find(&vfio.group_idr, minor);  in vfio_group_get_from_minor()
351 		mutex_unlock(&vfio.group_lock);  in vfio_group_get_from_minor()
355 	mutex_unlock(&vfio.group_lock);  in vfio_group_get_from_minor()
406 	wake_up(&vfio.release_q);  in vfio_device_release()
809 			ret = wait_event_timeout(vfio.release_q,  in vfio_del_group_dev()
812 			ret = wait_event_interruptible_timeout(vfio.release_q,  in vfio_del_group_dev()
854 			mutex_lock(&vfio.iommu_drivers_lock);  in vfio_ioctl_check_extension()
855 			list_for_each_entry(driver, &vfio.iommu_drivers_list,  in vfio_ioctl_check_extension()
867 			mutex_unlock(&vfio.iommu_drivers_lock);  in vfio_ioctl_check_extension()
924 	mutex_lock(&vfio.iommu_drivers_lock);  in vfio_ioctl_set_iommu()
925 	list_for_each_entry(driver, &vfio.iommu_drivers_list, vfio_next) {  in vfio_ioctl_set_iommu()
944 		mutex_unlock(&vfio.iommu_drivers_lock);  in vfio_ioctl_set_iommu()
965 	mutex_unlock(&vfio.iommu_drivers_lock);  in vfio_ioctl_set_iommu()
1587 	idr_init(&vfio.group_idr);  in vfio_init()
1588 	mutex_init(&vfio.group_lock);  in vfio_init()
1589 	mutex_init(&vfio.iommu_drivers_lock);  in vfio_init()
1590 	INIT_LIST_HEAD(&vfio.group_list);  in vfio_init()
1591 	INIT_LIST_HEAD(&vfio.iommu_drivers_list);  in vfio_init()
1592 	init_waitqueue_head(&vfio.release_q);  in vfio_init()
1601 	vfio.class = class_create(THIS_MODULE, "vfio");  in vfio_init()
1602 	if (IS_ERR(vfio.class)) {  in vfio_init()
1603 		ret = PTR_ERR(vfio.class);  in vfio_init()
1607 	vfio.class->devnode = vfio_devnode;  in vfio_init()
1609 	ret = alloc_chrdev_region(&vfio.group_devt, 0, MINORMASK, "vfio");  in vfio_init()
1613 	cdev_init(&vfio.group_cdev, &vfio_group_fops);  in vfio_init()
1614 	ret = cdev_add(&vfio.group_cdev, vfio.group_devt, MINORMASK);  in vfio_init()
1631 	unregister_chrdev_region(vfio.group_devt, MINORMASK);  in vfio_init()
1633 	class_destroy(vfio.class);  in vfio_init()
1634 	vfio.class = NULL;  in vfio_init()
1642 	WARN_ON(!list_empty(&vfio.group_list));  in vfio_cleanup()
1644 	idr_destroy(&vfio.group_idr);  in vfio_cleanup()
1645 	cdev_del(&vfio.group_cdev);  in vfio_cleanup()
1646 	unregister_chrdev_region(vfio.group_devt, MINORMASK);  in vfio_cleanup()
1647 	class_destroy(vfio.class);  in vfio_cleanup()
1648 	vfio.class = NULL;  in vfio_cleanup()