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xen-devel
[Xen-devel] Re: [PATCH 4/4] mm: Do not define PFN_SECTION_SHIFT if !CONF
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To: |
Daniel Kiper <dkiper@xxxxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH 4/4] mm: Do not define PFN_SECTION_SHIFT if !CONFIG_SPARSEMEM |
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From: |
Dave Hansen <dave@xxxxxxxxxxxxxxxxxx> |
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Date: |
Tue, 03 May 2011 09:10:12 -0700 |
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Cc: |
jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, ian.campbell@xxxxxxxxxx, haicheng.li@xxxxxxxxxxxxxxx, konrad.wilk@xxxxxxxxxx, dan.magenheimer@xxxxxxxxxx, v.tolstov@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, rientjes@xxxxxxxxxx, andi.kleen@xxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, fengguang.wu@xxxxxxxxx, wdauchy@xxxxxxxxx |
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Tue, 03 May 2011 09:11:46 -0700 |
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<20110502212226.GE4623@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
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On Mon, 2011-05-02 at 23:22 +0200, Daniel Kiper wrote:
> Do not define PFN_SECTION_SHIFT if !CONFIG_SPARSEMEM.
>
> Signed-off-by: Daniel Kiper <dkiper@xxxxxxxxxxxx>
I'd like if this was a bit easier to verify that it didn't break
anything. Basically, we should probably limit direct use of
PFN_SECTION_SHIFT to inside #ifdefs in headers.
But, if something is truly using this today, it's probably broken. It's
easy enough to work around if someone hits it, I guess.
Acked-by: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx>
-- Dave
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