1487 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_resize()  local
1510 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_resize()
1511 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_resize()
1512 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_resize()
1516 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_resize()
1518 	sizestr = vol_args->name;  in btrfs_ioctl_resize()
1523 		devstr = vol_args->name;  in btrfs_ioctl_resize()
1616 	kfree(vol_args);  in btrfs_ioctl_resize()
1689 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_create()  local
1695 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create()
1696 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create()
1697 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create()
1698 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create()
1700 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create()
1701 					      vol_args->fd, subvol,  in btrfs_ioctl_snap_create()
1704 	kfree(vol_args);  in btrfs_ioctl_snap_create()
1711 	struct btrfs_ioctl_vol_args_v2 *vol_args;  in btrfs_ioctl_snap_create_v2()  local
1721 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_create_v2()
1722 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_create_v2()
1723 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_create_v2()
1724 	vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0';  in btrfs_ioctl_snap_create_v2()
1726 	if (vol_args->flags &  in btrfs_ioctl_snap_create_v2()
1733 	if (vol_args->flags & BTRFS_SUBVOL_CREATE_ASYNC)  in btrfs_ioctl_snap_create_v2()
1735 	if (vol_args->flags & BTRFS_SUBVOL_RDONLY)  in btrfs_ioctl_snap_create_v2()
1737 	if (vol_args->flags & BTRFS_SUBVOL_QGROUP_INHERIT) {  in btrfs_ioctl_snap_create_v2()
1738 		if (vol_args->size > PAGE_CACHE_SIZE) {  in btrfs_ioctl_snap_create_v2()
1742 		inherit = memdup_user(vol_args->qgroup_inherit, vol_args->size);  in btrfs_ioctl_snap_create_v2()
1749 	ret = btrfs_ioctl_snap_create_transid(file, vol_args->name,  in btrfs_ioctl_snap_create_v2()
1750 					      vol_args->fd, subvol, ptr,  in btrfs_ioctl_snap_create_v2()
1764 	kfree(vol_args);  in btrfs_ioctl_snap_create_v2()
2372 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_snap_destroy()  local
2384 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_snap_destroy()
2385 	if (IS_ERR(vol_args))  in btrfs_ioctl_snap_destroy()
2386 		return PTR_ERR(vol_args);  in btrfs_ioctl_snap_destroy()
2388 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_snap_destroy()
2389 	namelen = strlen(vol_args->name);  in btrfs_ioctl_snap_destroy()
2390 	if (strchr(vol_args->name, '/') ||  in btrfs_ioctl_snap_destroy()
2391 	    strncmp(vol_args->name, "..", namelen) == 0) {  in btrfs_ioctl_snap_destroy()
2404 	dentry = lookup_one_len(vol_args->name, parent, namelen);  in btrfs_ioctl_snap_destroy()
2596 	kfree(vol_args);  in btrfs_ioctl_snap_destroy()
2671 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_add_dev()  local
2683 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_add_dev()
2684 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_add_dev()
2685 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_add_dev()
2689 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_add_dev()
2690 	ret = btrfs_init_new_device(root, vol_args->name);  in btrfs_ioctl_add_dev()
2693 		btrfs_info(root->fs_info, "disk added %s",vol_args->name);  in btrfs_ioctl_add_dev()
2695 	kfree(vol_args);  in btrfs_ioctl_add_dev()
2705 	struct btrfs_ioctl_vol_args *vol_args;  in btrfs_ioctl_rm_dev()  local
2715 	vol_args = memdup_user(arg, sizeof(*vol_args));  in btrfs_ioctl_rm_dev()
2716 	if (IS_ERR(vol_args)) {  in btrfs_ioctl_rm_dev()
2717 		ret = PTR_ERR(vol_args);  in btrfs_ioctl_rm_dev()
2721 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';  in btrfs_ioctl_rm_dev()
2730 	ret = btrfs_rm_device(root, vol_args->name);  in btrfs_ioctl_rm_dev()
2735 		btrfs_info(root->fs_info, "disk deleted %s",vol_args->name);  in btrfs_ioctl_rm_dev()
2738 	kfree(vol_args);  in btrfs_ioctl_rm_dev()