1468 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_resize()  local
1491 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_resize()
1492 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_resize()
1493 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_resize()
1497 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_resize()
1499 	sizestr = vol_args->name;  in btrfs_ioctl_resize()
1504 		devstr = vol_args->name;  in btrfs_ioctl_resize()
1597 	kfree(vol_args);  in btrfs_ioctl_resize()
1667 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_create()  local
1670 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create()
1671 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create()
1672 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create()
1673 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create()
1675 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create()
1676 					      vol_args->fd, subvol,  in btrfs_ioctl_snap_create()
1679 	kfree(vol_args);  in btrfs_ioctl_snap_create()
1686 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_snap_create_v2()  local
1693 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create_v2()
1694 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create_v2()
1695 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create_v2()
1696 	vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create_v2()
1698 	if (vol_args->flags &  in btrfs_ioctl_snap_create_v2()
1705 	if (vol_args->flags & BTRFS_SUBVOL_CREATE_ASYNC)  in btrfs_ioctl_snap_create_v2()
1707 	if (vol_args->flags & BTRFS_SUBVOL_RDONLY)  in btrfs_ioctl_snap_create_v2()
1709 	if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {  in btrfs_ioctl_snap_create_v2()
1710 		if (vol_args->size > PAGE_CACHE_SIZE) {  in btrfs_ioctl_snap_create_v2()
1714 		inherit = memdup_user(vol_args->qgroup_inherit, vol_args->size);  in btrfs_ioctl_snap_create_v2()
1721 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create_v2()
1722 					      vol_args->fd, subvol, ptr,  in btrfs_ioctl_snap_create_v2()
1736 	kfree(vol_args);  in btrfs_ioctl_snap_create_v2()
2312 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_destroy()  local
2321 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_destroy()
2322 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_destroy()
2323 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_destroy()
2325 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_destroy()
2326 	namelen = strlen(vol_args->name);  in btrfs_ioctl_snap_destroy()
2327 	if (strchr(vol_args->name, '/') ||  in btrfs_ioctl_snap_destroy()
2328 	    strncmp(vol_args->name, "..", namelen) == 0) {  in btrfs_ioctl_snap_destroy()
2341 	dentry = lookup_one_len(vol_args->name, parent, namelen);  in btrfs_ioctl_snap_destroy()
2531 	kfree(vol_args);  in btrfs_ioctl_snap_destroy()
2606 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_add_dev()  local
2618 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_add_dev()
2619 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_add_dev()
2620 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_add_dev()
2624 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_add_dev()
2625 	ret = btrfs_init_new_device(root, vol_args->name);  in btrfs_ioctl_add_dev()
2628 		btrfs_info(root->fs_info, "disk added %s",vol_args->name);  in btrfs_ioctl_add_dev()
2630 	kfree(vol_args);  in btrfs_ioctl_add_dev()
2640 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_rm_dev()  local
2650 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev()
2651 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_rm_dev()
2652 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev()
2656 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_rm_dev()
2665 	ret = btrfs_rm_device(root, vol_args->name);  in btrfs_ioctl_rm_dev()
2670 		btrfs_info(root->fs_info, "disk deleted %s",vol_args->name);  in btrfs_ioctl_rm_dev()
2673 	kfree(vol_args);  in btrfs_ioctl_rm_dev()