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Date:      Tue, 05 Sep 2000 21:48:59 +0900
From:      "Daniel C. Sobral" <dcs@newsguy.com>
To:        Boris Popov <bp@butya.kz>
Cc:        freebsd-fs@FreeBSD.ORG, dillon@FreeBSD.ORG, semenu@FreeBSD.ORG, tegge@FreeBSD.ORG
Subject:   Re: CFR: nullfs, vm_objects and locks... (patch)
Message-ID:  <39B4EBBB.9C7A5CAB@newsguy.com>
References:  <Pine.BSF.4.10.10009051705530.79991-100000@lion.butya.kz>

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Boris Popov wrote:
> 
>         The simple solution for it is to integrate lock structure into
> vnode and making vnode.v_vnlock initially point to it. Any filesystem
> above can pickup the pointer and assign it to v_vnlock field in its own
> vnode structure. If underlying filesystem doesn't provide any lock
> structure then bad times are coming and each layer can maintain its own
> lock state.

How can it handle fs multiplexing? Ie, a single underlying layer with
multiple non-stacked layers above?

-- 
Daniel C. Sobral			(8-DCS)
dcs@newsguy.com
dcs@freebsd.org
capo@white.bunnies.bsdconspiracy.net

	OK, so the solar flares are my fault.. I am sorry, ok?!?!


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