From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Hironobu Ishii <ishii.hironobu@jp.fujitsu.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-ia64 <linux-ia64@vger.kernel.org>
Subject: Re: [RFC/PATCH, 2/4] readX_check() performance evaluation
Date: Wed, 28 Jan 2004 08:58:25 +0000 [thread overview]
Message-ID: <20040128085825.A3591@flint.arm.linux.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.58.0401271847440.10794@home.osdl.org>; from torvalds@osdl.org on Tue, Jan 27, 2004 at 06:55:17PM -0800
On Tue, Jan 27, 2004 at 06:55:17PM -0800, Linus Torvalds wrote:
> Does anybody see any downsides to something like this?
What if the failing PCI access happened in an interrupt routine?
(I'm thinking of the situation where you may need to read the PCI
status registers to find out whether an error occurred.)
Also, for that matter, what if a network device receives an abort
while performing BM-DMA?
Do we even care about either of these two scenarios?
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core
next prev parent reply other threads:[~2004-01-28 8:58 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-28 1:54 [RFC/PATCH, 2/4] readX_check() performance evaluation Hironobu Ishii
2004-01-28 2:55 ` Linus Torvalds
2004-01-28 4:44 ` Paul Mackerras
2004-01-28 8:58 ` Russell King [this message]
2004-01-28 16:15 ` Linus Torvalds
2004-01-28 17:01 ` Grant Grundler
2004-01-28 18:20 ` Matthew Wilcox
2004-01-28 19:19 ` Andi Kleen
2004-01-28 19:33 ` Linus Torvalds
2004-01-28 19:40 ` Andi Kleen
2004-01-28 20:06 ` Linus Torvalds
2004-01-28 20:15 ` Andi Kleen
2004-01-28 20:19 ` [RFC/PATCH, 2/4] readX_check() performance evaluation II Andi Kleen
2004-01-28 20:28 ` [RFC/PATCH, 2/4] readX_check() performance evaluation Linus Torvalds
2004-01-28 20:30 ` Linus Torvalds
2004-01-28 21:09 ` Andi Kleen
2004-01-28 21:43 ` Linus Torvalds
2004-01-28 21:52 ` Andi Kleen
2004-01-28 22:21 ` Linus Torvalds
2004-01-28 22:39 ` Andi Kleen
2004-01-28 22:59 ` Linus Torvalds
2004-01-29 12:24 ` Hironobu Ishii
2004-01-28 22:15 ` David S. Miller
2004-01-28 3:09 ` Matthew Wilcox
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