图6显示响应文件cfgdbcmd . rsp和与db 2相关的一组参数，以及db 2与图1中描述的两个子系统之间的关系。

Figure 6 shows the response file cfgdbcmd.rsp and a set of parameters pertaining to DB2, and its relationship with the two subsystems described in Figure 1.

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通常可以把iocb看作AIO子系统使用的不透明数据结构。 然而，如果需要文件描述符的struct file指针，可以通过iocb->ki_flip获取。

The iocb argument can usually be treated as an opaque cookie used by the AIO subsystem; if you need the struct file pointer for this file descriptor, however, you can find it as iocb->ki_filp.

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