xfs_contig_bits
extern int xfs_contig_bits(uint *map, uint size, uint start_bit);
nbits = xfs_contig_bits(blfp->blf_data_map,
nbits = xfs_contig_bits(blfp->blf_data_map,
nbits = xfs_contig_bits(buf_f->blf_data_map,
nbits = xfs_contig_bits(buf_f->blf_data_map,