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From: Jeff Garzik <jgarzik@pobox.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Roman Zippel <zippel@linux-m68k.org>, linux-kernel@vger.kernel.org
Subject: Re: Modules and the Interfaces who Love Them (Take I)
Date: Wed, 13 Nov 2002 23:34:07 -0500	[thread overview]
Message-ID: <3DD327BF.4040705@pobox.com> (raw)
In-Reply-To: <20021114032456.5676D2C0C9@lists.samba.org>

Rusty Russell wrote:

> Slow: Your approach where every interface has to do reference counts
> even though they're only useful for modules makes every interface
> slow, whether they are using modules or not.  You can't make them
> fast, because that would make every interface NR_CPUS *
> sizeof(cacheline) larger.


(tangent alert)

Objects controlled by interfaces typically should be ref-counted... 
life in the kernel is slowly getting better WRT this, but we're not 
there yet.  In any case, the ref counts help, not hurt.

	Jeff




  reply	other threads:[~2002-11-14  4:27 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-13 10:17 Modules and the Interfaces who Love Them (Take I) Rusty Russell
2002-11-13 19:02 ` Roman Zippel
2002-11-14  3:34   ` Rusty Russell
2002-11-14  4:34     ` Jeff Garzik [this message]
2002-11-14 10:28     ` Roman Zippel
2002-11-14 11:00     ` Roman Zippel

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