BFS_BSIZE_BITS     51 fs/bfs/dir.c   		block = BFS_I(dir)->i_sblock + (f->f_pos >> BFS_BSIZE_BITS);
BFS_BSIZE_BITS    378 fs/bfs/inode.c 	info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1) >> BFS_BSIZE_BITS;
BFS_BSIZE_BITS    380 fs/bfs/inode.c 			- le32_to_cpu(bfs_sb->s_start)) >> BFS_BSIZE_BITS;
BFS_BSIZE_BITS     10 include/linux/bfs_fs.h #define BFS_BSIZE		(1<<BFS_BSIZE_BITS)