taglinefilesource code
sv_ind_per_block_block_size_189fs/sysv/inode.csb->sv_ind_per_block_block_size_1 = (512/4)*512-1;
sv_ind_per_block_block_size_1116fs/sysv/inode.csb->sv_ind_per_block_block_size_1 = (1024/4)*1024-1;
sv_ind_per_block_block_size_1176fs/sysv/truncate.ci = (inode->i_size - offset + sb->sv_ind_per_block_block_size_1) >> sb->sv_ind_per_block_block_size_bits;