IFSMgr_FreeIoreq( pioreq pir )
This service is provided to free an IO request structure that is allocated by the IFS manager when it calls an FSD back on a scheduled or queued event. After the FSD has completed its event processing, it must call this service to free the IO request packet. If the IO request packet is not freed, it may delay or prevent event processing for other FSDs.
pir
Supplies pointer to the IO request structure to be freed. This must be the same pointer that was passed to the FSD when the event function was called.