Date: Sat, 8 Dec 2001 05:04:54 -0600 From: Alfred Perlstein <bright@mu.org> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Terry Lambert <tlambert2@mindspring.com>, Dave Rufino <dr263@hermes.cam.ac.uk>, freebsd-hackers@FreeBSD.ORG Subject: Re: statefulness in character device drivers Message-ID: <20011208050454.A92148@elvis.mu.org> In-Reply-To: <47779.1007808692@critter.freebsd.dk>; from phk@critter.freebsd.dk on Sat, Dec 08, 2001 at 11:51:32AM %2B0100 References: <3C11E982.F50F2353@mindspring.com> <47779.1007808692@critter.freebsd.dk>
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* Poul-Henning Kamp <phk@critter.freebsd.dk> [011208 04:53] wrote:
>
> If you don't include dup/dup2/fnctl in your accounting, you
> can only reliably tell "first open", "another open", "some close"
> and "final close". You an modulate this with the pid, but you
> still have no idea what is going on in any amount of detail.
Does linux track dup/fcntl?
One of the things is that a default VOP for this means that the
underlying vnode doesn't care, hence we can make it nop-ish right?
--
-Alfred Perlstein [alfred@freebsd.org]
'Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.'
http://www.morons.org/rants/gpl-harmful.php3
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