Re: [take12 0/3] kevent: Generic event handling mechanism.

From: "Jari Sundell" <redacted>
Date: Wed, 23 Aug 2006 02:28:32 +0200

There are system calls that take timespec, so I assume the magic is
already available for handling the timeout argument of kevent.

System calls are one thing, they can be translated for these
kinds of situations.  But this doesn't help, and nothing at
all can be done, for datastructures exposed to userspace via
mmap()'d buffers, which is what kevent will be doing.

This is what Alexey is trying to explain to you.