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Date:      Sun, 17 Feb 2002 14:03:33 -0800
From:      Alfred Perlstein <bright@mu.org>
To:        "Brian F. Feldman" <green@FreeBSD.org>
Cc:        Poul-Henning Kamp <phk@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/sys vnode.h
Message-ID:  <20020217220333.GK12136@elvis.mu.org>
In-Reply-To: <200202172058.g1HKwcM01535@green.bikeshed.org>
References:  <200202172041.g1HKfSJ76961@freefall.freebsd.org> <200202172058.g1HKwcM01535@green.bikeshed.org>

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* Brian F. Feldman <green@FreeBSD.org> [020217 12:58] wrote:
> Poul-Henning Kamp <phk@FreeBSD.org> wrote:
> > phk         2002/02/17 12:41:28 PST
> > 
> >   Modified files:
> >     sys/sys              vnode.h 
> >   Log:
> >   v_lease is unused, zap it.
> 
> Hm, and actually, nothing ever provided an implementation of VOP_LEASE() 
> that I know of :)  I'll try and look up some history on it today; it's 
> certainly not used consistently, so if anything were to come to depend on it 
> I think it would easily be broken.

Anything that wants decent cache coherency wants leases.

NQNFS client side used to have a LEASE hook.
Newer CIFS needs it.
NFSv4 will need it.

Please clue-up before deciding to rip things out that you don't
understand.  You could have at least asked. :)

-Alfred

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