214 static void	cleanup_function(void *arg, __unused int pending);
339 gntdev_alloc_gref(struct ioctl_gntdev_alloc_gref *arg)  in gntdev_alloc_gref()  argument
347 	readonly = !(arg->flags & GNTDEV_ALLOC_FLAG_WRITABLE);  in gntdev_alloc_gref()
357 	error = get_file_offset(priv_user, arg->count, &file_offset);  in gntdev_alloc_gref()
362 	grefs = malloc(sizeof(*grefs) * arg->count, M_GNTDEV, M_WAITOK);  in gntdev_alloc_gref()
364 	for (i = 0; i < arg->count; i++) {  in gntdev_alloc_gref()
377 		error = gnttab_grant_foreign_access(arg->domid,  in gntdev_alloc_gref()
387 	arg->index = file_offset;  in gntdev_alloc_gref()
388 	for (i = 0; error == 0 && i < arg->count; i++) {  in gntdev_alloc_gref()
389 		if (suword32(&arg->gref_ids[i], grefs[i].gref_id) != 0)  in gntdev_alloc_gref()
401 		for (i = 0; i < arg->count; i++)  in gntdev_alloc_gref()
413 	for (i = 0; i < arg->count; i++)  in gntdev_alloc_gref()
427 gntdev_dealloc_gref(struct ioctl_gntdev_dealloc_gref *arg)  in gntdev_dealloc_gref()  argument
438 	gref = gntdev_find_grefs(priv_user, arg->index, arg->count);  in gntdev_dealloc_gref()
445 	count = arg->count;  in gntdev_dealloc_gref()
459 	put_file_offset(priv_user, arg->count, arg->index);  in gntdev_dealloc_gref()
638 gntdev_map_grant_ref(struct ioctl_gntdev_map_grant_ref *arg)  in gntdev_map_grant_ref()  argument
650 	gmap->count = arg->count;  in gntdev_map_grant_ref()
652 	    malloc(sizeof(struct gnttab_map_grant_ref) * arg->count,  in gntdev_map_grant_ref()
655 	for (i = 0; i < arg->count; i++) {  in gntdev_map_grant_ref()
658 		error = copyin(&arg->refs[i], &ref, sizeof(ref));  in gntdev_map_grant_ref()
670 	error = get_file_offset(priv_user, arg->count, &gmap->file_index);  in gntdev_map_grant_ref()
681 	arg->index = gmap->file_index;  in gntdev_map_grant_ref()
694 gntdev_unmap_grant_ref(struct ioctl_gntdev_unmap_grant_ref *arg)  in gntdev_unmap_grant_ref()  argument
704 	gmap = gntdev_find_gmap(priv_user, arg->index, arg->count);  in gntdev_unmap_grant_ref()
721 	put_file_offset(priv_user, arg->count, arg->index);  in gntdev_unmap_grant_ref()
737 gntdev_get_offset_for_vaddr(struct ioctl_gntdev_get_offset_for_vaddr *arg,  in gntdev_get_offset_for_vaddr()  argument
751 	error = vm_map_lookup(&map, arg->vaddr, VM_PROT_NONE, &entry,  in gntdev_get_offset_for_vaddr()
769 	arg->count = gmap->count;  in gntdev_get_offset_for_vaddr()
770 	arg->offset = gmap->file_index;  in gntdev_get_offset_for_vaddr()
892 gntdev_set_unmap_notify(struct ioctl_gntdev_unmap_notify *arg)  in gntdev_set_unmap_notify()  argument
904 	if (arg->action & ~(UNMAP_NOTIFY_CLEAR_BYTE|UNMAP_NOTIFY_SEND_EVENT))  in gntdev_set_unmap_notify()
907 	index = arg->index & ~PAGE_MASK;  in gntdev_set_unmap_notify()
911 			gref->notify = malloc(sizeof(*arg), M_GNTDEV,  in gntdev_set_unmap_notify()
913 		return (copy_notify_helper(gref->notify, arg));  in gntdev_set_unmap_notify()
919 		if (arg->index >= gmap->file_index &&  in gntdev_set_unmap_notify()
920 		    arg->index < gmap->file_index + gmap->count * PAGE_SIZE) {  in gntdev_set_unmap_notify()
922 				gmap->notify = malloc(sizeof(*arg), M_GNTDEV,  in gntdev_set_unmap_notify()
924 			error = copy_notify_helper(gmap->notify, arg);  in gntdev_set_unmap_notify()
936 cleanup_function(void *arg, __unused int pending)  in cleanup_function()  argument
939 	gref_list_dtor((struct cleanup_data_struct *) arg);  in cleanup_function()
940 	gmap_list_dtor((struct cleanup_data_struct *) arg);  in cleanup_function()
944 per_user_data_dtor(void *arg)  in per_user_data_dtor()  argument
951 	priv_user = (struct per_user_data *) arg;  in per_user_data_dtor()