xfs_bmapi_convert_delalloc
int xfs_bmapi_convert_delalloc(struct xfs_inode *ip, int whichfork,
error = xfs_bmapi_convert_delalloc(ip, whichfork, offset,
error = xfs_bmapi_convert_delalloc(ip, XFS_COW_FORK, offset, iomap,
error = xfs_bmapi_convert_delalloc(ip, XFS_DATA_FORK, offset,