btrfs_create_subvol_root 2845 fs/btrfs/ctree.h int btrfs_create_subvol_root(struct btrfs_trans_handle *trans, btrfs_create_subvol_root 679 fs/btrfs/ioctl.c ret = btrfs_create_subvol_root(trans, new_root, root, new_dirid);