linux-kernel - Re: [PATCH 1/1] x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata

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Message-Id: <1184203051.2693.3.camel@laptopd505.fenrus.org>
Date:	Thu, 12 Jul 2007 09:17:31 +0800
From:	Arjan van de Ven <arjan@...radead.org>
To:	Muli Ben-Yehuda <muli@...ibm.com>
Cc:	Andi Kleen <ak@...e.de>, Jeff Garzik <jeff@...zik.org>,
	Yinghai Lu <Yinghai.Lu@....COM>, Andrew Morton <akpm@...l.org>,
	Linux-Kernel <linux-kernel@...r.kernel.org>,
	Jon Mason <jdmason@...il.com>
Subject: Re: [PATCH 1/1] x86-64: introduce struct pci_sysdata to facilitate
	sharing of ->sysdata

On Wed, 2007-07-11 at 16:45 +0300, Muli Ben-Yehuda wrote:
> Andi, please consider applying for 2.6.23. Applies on top of the
> Calgary update I just sent out ("Calgary: more updates for 2.6.23").
> 
> This patch introduces struct pci_sysdata to x86 and x86-64, and
> converts the existing two users (NUMA, Calgary) to use it.
> 
> This lays the groundwork for having other users of sysdata, such as
> the PCI domains work.
> 
> The Calgary bits are tested, the NUMA bits just look ok.


I very much start to dislike the untyped "sysdata"... I much rather have
separate fields for the different uses (like a IOMMU field) that aren't
going to share ever. Possibly even typed, but for IOMMU that may be
tricky....



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