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To: Julian Elischer <julian@elischer.org>
Cc: smp@FreeBSD.ORG
Subject: Re: Netgraph locking primatives. take 1. 
In-reply-to: Your message of "Sun, 17 Dec 2000 10:01:44 PST."
             <3A3CFF88.6B98890@elischer.org> 
From: Chuck Paterson <cp@bsdi.com>
Date: Sun, 17 Dec 2000 13:04:11 -0700
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Julian
	Unlike in you example program you probably want to make it
explicity illegal to request a write lock while holding a reader
lock, otherwise you have to deal with the multiple reader upgrade
deadlock problem.

Chuck


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