rc =blkid_probe_lookup_value(pr,"SBMAGIC", &mag, &len);if(rc)returnwp;/* partitions */}elseif(blkid_probe_lookup_value(pr,"PTTYPE", &type,NULL) ==0) { rc =blkid_probe_lookup_value(pr,"PTMAGIC_OFFSET", &off,NULL);if(!rc) rc =blkid_probe_lookup_value(pr,"PTMAGIC", &mag,...
分区是按照一定规则把一个表分解成多个更小的表,更容易管理的部分,当访问数据库应用而言,逻辑上是一...