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You may only use this file in accordance with the terms of version
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A little inside joke with the above date: that's the date that the
devpoll work integrated (under bug 1265897). The original work included
pollhead_clean() -- but didn't bother to document it! With the date,
we are therefore giving this man page the date it should have had in an
attempt to right an historical wrong -- albeit nearly two decades after
the fact.

pollhead_clean - inform the kernel that a pollhead is being deallocated

#include <sys/poll.h>



void pollhead_clean(struct pollhead *php);

Architecture independent level 1 (DDI/DKI).

php

The pollhead_clean() function informs the kernel that a driver's pollhead structure is about to be deallocated, usually as part of the driver's close(9E) entry point before the software state that contains the pollhead is deallocated via ddi_soft_state_free(9F). See chpoll(9E), pollwakeup(9F) and poll(2) for more detail.

The pollhead_clean() function is generally called from the context of a close(9E) entry point, but may be called from user or kernel context.

poll (2), chpoll (9E), pollwakeup (9F)