1477 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_resize()  local
1500 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_resize()
1501 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_resize()
1502 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_resize()
1506 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_resize()
1508 	sizestr = vol_args->name;  in btrfs_ioctl_resize()
1513 		devstr = vol_args->name;  in btrfs_ioctl_resize()
1606 	kfree(vol_args);  in btrfs_ioctl_resize()
1676 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_create()  local
1679 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create()
1680 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create()
1681 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create()
1682 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create()
1684 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create()
1685 					      vol_args->fd, subvol,  in btrfs_ioctl_snap_create()
1688 	kfree(vol_args);  in btrfs_ioctl_snap_create()
1695 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_snap_create_v2()  local
1702 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create_v2()
1703 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create_v2()
1704 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create_v2()
1705 	vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create_v2()
1707 	if (vol_args->flags &  in btrfs_ioctl_snap_create_v2()
1714 	if (vol_args->flags & BTRFS_SUBVOL_CREATE_ASYNC)  in btrfs_ioctl_snap_create_v2()
1716 	if (vol_args->flags & BTRFS_SUBVOL_RDONLY)  in btrfs_ioctl_snap_create_v2()
1718 	if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {  in btrfs_ioctl_snap_create_v2()
1719 		if (vol_args->size > PAGE_CACHE_SIZE) {  in btrfs_ioctl_snap_create_v2()
1723 		inherit = memdup_user(vol_args->qgroup_inherit, vol_args->size);  in btrfs_ioctl_snap_create_v2()
1730 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create_v2()
1731 					      vol_args->fd, subvol, ptr,  in btrfs_ioctl_snap_create_v2()
1745 	kfree(vol_args);  in btrfs_ioctl_snap_create_v2()
2339 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_destroy()  local
2348 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_destroy()
2349 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_destroy()
2350 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_destroy()
2352 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_destroy()
2353 	namelen = strlen(vol_args->name);  in btrfs_ioctl_snap_destroy()
2354 	if (strchr(vol_args->name, '/') ||  in btrfs_ioctl_snap_destroy()
2355 	    strncmp(vol_args->name, "..", namelen) == 0) {  in btrfs_ioctl_snap_destroy()
2368 	dentry = lookup_one_len(vol_args->name, parent, namelen);  in btrfs_ioctl_snap_destroy()
2558 	kfree(vol_args);  in btrfs_ioctl_snap_destroy()
2633 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_add_dev()  local
2645 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_add_dev()
2646 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_add_dev()
2647 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_add_dev()
2651 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_add_dev()
2652 	ret = btrfs_init_new_device(root, vol_args->name);  in btrfs_ioctl_add_dev()
2655 		btrfs_info(root->fs_info, "disk added %s",vol_args->name);  in btrfs_ioctl_add_dev()
2657 	kfree(vol_args);  in btrfs_ioctl_add_dev()
2667 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_rm_dev()  local
2677 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev()
2678 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_rm_dev()
2679 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev()
2683 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_rm_dev()
2692 	ret = btrfs_rm_device(root, vol_args->name);  in btrfs_ioctl_rm_dev()
2697 		btrfs_info(root->fs_info, "disk deleted %s",vol_args->name);  in btrfs_ioctl_rm_dev()
2700 	kfree(vol_args);  in btrfs_ioctl_rm_dev()