einfo_should_update
boolean_t einfo_should_update(bblk_einfo_t *, bblk_hs_t *, char *);
rv = einfo_should_update(einfo, &bblock_hs, update_str);
return (einfo_should_update(einfo, &bblock_hs, updt_str));
return (einfo_should_update(einfo, &stage2_hs, updt_str));