On Thu, Aug 10, 2006 at 11:38:26PM -0700, David Miller (davem@davemloft.net) wrote:

From: Evgeniy Polyakov <redacted>
Date: Fri, 11 Aug 2006 10:33:53 +0400

quoted

That requires mmap hacks to substitute pages in run-time without user
notifications. I do not expect it is a good solution, since on x86 it
requires full TLB flush (at least when I did it there were no exported
methods to flush separate addresses).

You just need to provide a do_no_page method, the VM layer will
take care of the page level flushing or whatever else might be
needed.

Yes, it is the simplest way to extend mapping but not to replace pages
which are successfully mapped, but such hacks are not needed for kevent
which only expects to extend mapping when number of ready kevents
increases.

So I will create such implementation and will place a reduced amount of
info into that pages.

-- 
	Evgeniy Polyakov