linux-kernel - Re: [PATCH] x86: x86_{phys,virt}

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Message-ID: <20080918122922.GA27232@elte.hu>
Date:	Thu, 18 Sep 2008 14:29:22 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jan Beulich <jbeulich@...ell.com>
Cc:	tglx@...utronix.de, linux-kernel@...r.kernel.org, hpa@...or.com,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Hugh Dickins <hugh@...itas.com>
Subject: Re: [PATCH] x86: x86_{phys,virt}_bits field also for i386 (v3)


* Jan Beulich <jbeulich@...ell.com> wrote:

> >>> Ingo Molnar <mingo@...e.hu> 18.09.08 13:20 >>>
> >
> >* Ingo Molnar <mingo@...e.hu> wrote:
> >
> >> * Jan Beulich <jbeulich@...ell.com> wrote:
> >> 
> >> > I'm really sorry for that, yet another merge oversight (not caught 
> >> > because only re-tested on x86-64). Here's a better one.
> >> 
> >> ah, i see, the delta below. Nasty.
> >
> >the attached config fails in a similar way.
> 
> Hmm, yes, other than in .27, -tip derives resource_size_t from phys_addr_t,
> regardless of CONFIG_RESOURCES_64BIT (and the config you provided
> is a non-PAE one). I have to question that change, which I'm sure is
> responsible for this failure. If there's a good reason for this, then
> phys_addr_valid() should use phys_addr_t as its parameter type (and
> so should ioremap() & Co), and the pre-processor conditional should
> then change to depend on CONFIG_PHYS_ADDR_T_64BIT. Since ioremap()
> would need to change first, I'd have to withdraw the patch until that
> gets sorted out.

(Cc:-ing Jeremy and Hugh).

	Ingo
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