S </b></font><font face="Times">vm_task_t <b>IOVmTaskForBuf(</b>struct buf *<i>buffer</i><b>)</b></font>

<p><font face="Helvetica" size="-1"><b>DESCRIPTION </b></font><font face="Times">Block drivers use this function to determine the task for which they're doing I/O. The value returned by this function is used in calls to <b>IOPhysicalFromVirtual()</b>, which returns an address that's used in IODirectDevice's <b>createDMABufferFor:... </b>method.</font></td></tr>

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