CDU_ILT_PAGE_SZ
#define ILT_PAGE_CIDS (CDU_ILT_PAGE_SZ / sizeof(union cdu_context))
cp->ctx_blk_size = CDU_ILT_PAGE_SZ;
bp->context[i].size = min(CDU_ILT_PAGE_SZ,
ilt_client->page_size = CDU_ILT_PAGE_SZ;
cxt->size = min_t(size_t, tot_size, CDU_ILT_PAGE_SZ);