Interesting to see some technical details of FreeBSD's VFS layer, I've never delved too deeply into it myself but I have looked at Linux's so it's not completely unfamiliar to me.
This was very interesting, thanks. Sorta-OT, I wonder if there's a modern equivalent of Vahalia's <i>Unix Internals: The New Frontiers</i> [1]?<p>[1] <a href="http://www.goodreads.com/book/show/337378.UNIX_Internals" rel="nofollow">http://www.goodreads.com/book/show/337378.UNIX_Internals</a>