linux-kernel - Re: CONFIG_HIGHPTE vs. sub-page page tables.

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Message-ID: <20080208231506.GA13350@elte.hu>
Date:	Sat, 9 Feb 2008 00:15:06 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: CONFIG_HIGHPTE vs. sub-page page tables.


* Ingo Molnar <mingo@...e.hu> wrote:

> config attached. It seems all !PAE 32-bit kernel builds are broken due 
> to this. The patch below fixes it.

ok, the patch was against x86.git which had some other changes in this 
area - the one below applies to vanilla -git and fixes the bug.

	Ingo

----------------->
Subject: x86: fix pgtable_t build breakage
From: Ingo Molnar <mingo@...e.hu>

fix build breakage caused by commit 2f569afd9ced9ebec9.

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 include/asm-x86/page_32.h |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Index: linux-x86.q/include/asm-x86/page_32.h
===================================================================
--- linux-x86.q.orig/include/asm-x86/page_32.h
+++ linux-x86.q/include/asm-x86/page_32.h
@@ -50,11 +50,13 @@ typedef unsigned long	phys_addr_t;
 typedef union { pteval_t pte, pte_low; } pte_t;
 typedef pte_t boot_pte_t;
 
-typedef struct page *pgtable_t;
-
 #endif	/* __ASSEMBLY__ */
 #endif	/* CONFIG_X86_PAE */
 
+#ifndef __ASSEMBLY__
+typedef struct page *pgtable_t;
+#endif
+
 #ifdef CONFIG_HUGETLB_PAGE
 #define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
 #endif
--
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