linux-kernel - Re: How could we get rid of saved_max

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Message-ID: <20140309070642.GA2525@needle>
Date:	Sun, 9 Mar 2014 09:06:42 +0200
From:	Muli Ben-Yehuda <muli@...technion.ac.il>
To:	Jon Mason <jdmason@...zu.us>
Cc:	"H. Peter Anvin" <hpa@...or.com>, WANG Chao <chaowang@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Vivek Goyal <vgoyal@...hat.com>,
	Yinghai Lu <yinghai@...nel.org>, Baoquan He <bhe@...hat.com>,
	kexec@...ts.infradead.org, discuss@...-64.org, x86@...nel.org,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: How could we get rid of saved_max_pfn for calgary iommu?

On Thu, Mar 06, 2014 at 07:46:44AM -0700, Jon Mason wrote:

> > I don't know of anyone still using it, but it's not
> > impossible. Calgary and CalIOC2 machines would now be ~5-8 years
> > old.
> 
> It is getting a bit crufty in arch/x86.  Would it be better to move
> it to drivers/iommu?

Not sure I see the potential benefit... I think for Calgary it's
either leave it in arch/x86 or rip it out.

Cheers,
Muli
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