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Date:      Wed, 5 Sep 2001 00:10:31 +0700 (ALMST)
From:      Boris Popov <bp@butya.kz>
To:        Maxim Sobolev <sobomax@FreeBSD.ORG>
Cc:        Poul-Henning Kamp <phk@critter.freebsd.dk>, Brent Verner <brent@rcfile.org>, current@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject:   Re: Junior Kernel Hacker task: improve vnode->v_tag
Message-ID:  <Pine.BSF.4.21.0109050003390.2317-100000@lion.butya.kz>
In-Reply-To: <200109041343.f84DhO097646@vega.vega.com>

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On Tue, 4 Sep 2001, Maxim Sobolev wrote:

> > The places which inspect v_tag will have to be changed to use
> > strcmp() then...
> 
> I think that we can add a new vnode flag, say VCANLOCK, so that each
> particular VFS can set it if it supports locking, which should allow
> to remove pre-defined VFS list from the IS_LOCKING_VFS macro. I can
> produce a patch if it sounds reasonably.

	I'm not sure if this a right thing to do. Under SMPng each
filesystem is ought to implement correct vnode locking, i.e. vop_nolock()
and friends shouldn't exist.

-- 
Boris Popov
http://rbp.euro.ru


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