>I will add that this is the pattern that Kirk teaches in his kernel
>internals class.

   If that's true, then he should practice what he preaches. Some of the code
that I'm refering to (e.g. lockf) was apparantly written by him.
   I'll say again, however, that some of the cases that rely on the historical
symantics would become very expensive if they had to go through a series of
complex checks (perhaps list traversals, etc), in order to verify that the
wakeup wasn't bogus. I personally don't think this is an improvement.


David Greenman
Co-founder, The FreeBSD Project - http://www.freebsd.org
Manufacturer of high-performance Internet servers - http://www.terasolutions.com
Pave the road of life with opportunities.

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