fs/btrfs/ioctl.c

3450 	struct btrfs_ioctl_logical_ino_args *loi;
3458 	loi = memdup_user(arg, sizeof(*loi));
3459 	if (IS_ERR(loi))
3460 		return PTR_ERR(loi);
3464 		size = min_t(u32, loi->size, SZ_64K);
3467 		if (memchr_inv(loi->reserved, 0, sizeof(loi->reserved))) {
3472 		if (loi->flags & ~(BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET)) {
3476 		ignore_offset = loi->flags & BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET;
3477 		size = min_t(u32, loi->size, SZ_16M);
3491 	ret = iterate_inodes_from_logical(loi->logical, fs_info, path,
3499 	ret = copy_to_user((void __user *)(unsigned long)loi->inodes, inodes,
3507 	kfree(loi);