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Date:      Thu, 28 Mar 2002 14:45:19 -0800 (PST)
From:      Julian Elischer <julian@elischer.org>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        arch@FreeBSD.ORG, Bosko Milekic <bmilekic@unixdaemons.com>
Subject:   Re: SMP safe reference counting
Message-ID:  <Pine.BSF.4.21.0203281444270.53693-100000@InterJet.elischer.org>
In-Reply-To: <XFMail.20020328173711.jhb@FreeBSD.org>

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On Thu, 28 Mar 2002, John Baldwin wrote:

oops I see it's there.. you just mispelled the path..
sorry

> 
> It's old but it's been at ~jhb/paches/refcount.patch for about an eternity
> right now.  The changes I would make to it are that I would change
> refcount_drop() (or release or whatever it is called) to return the current
> value rather than a boolean about the value being 0 or not.  Also, once
> atomic_fetchadd() is done, it will change a fair bit.  There would just be
> a MI header, no MD stuff, and we woudln't use a mutex for the debug version
> that uses asserts.
> 
> > Julian
> 
> -- 
> 
> John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
> "Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/
> 


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