linux-kernel - [RFC][PATCH 30/35] m68k: use pte_offset_kernel() as base for pte_offset

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Message-Id: <20090501144248.FCE3F261@kernel>
Date:	Fri, 01 May 2009 07:42:48 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	linux-arch@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Dave Hansen <dave@...ux.vnet.ibm.com>
Subject: [RFC][PATCH 30/35] m68k: use pte_offset_kernel() as base for pte_offset_map*()


Some architectures use pte_offset_map() as a basis for
pte_offset_kernel().  Others do the inverse.

Although arbitrary, Using pte_offset_kernel() as the base
seems a wee bit more popular and it also fits in well
with the way I'm breaking out the headers.

Instead of coding the same implementation twice, this
makes pte_offset_map{,_nested}() call pte_offset_kernel()
directly.


Signed-off-by: Dave Hansen <dave@...ux.vnet.ibm.com>
---

 linux-2.6.git-dave/arch/m68k/include/asm/ptemap.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN arch/m68k/include/asm/ptemap.h~m68k-pte_offset_kernel arch/m68k/include/asm/ptemap.h
--- linux-2.6.git/arch/m68k/include/asm/ptemap.h~m68k-pte_offset_kernel	2009-04-30 15:11:10.000000000 -0700
+++ linux-2.6.git-dave/arch/m68k/include/asm/ptemap.h	2009-04-30 15:11:10.000000000 -0700
@@ -12,8 +12,8 @@
 
 #else /* !CONFIG_SUN3, Motorola */
 
-#define pte_offset_map(pmdp,address) ((pte_t *)__pmd_page(*pmdp) + (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
-#define pte_offset_map_nested(pmdp, address) pte_offset_map(pmdp, address)
+#define pte_offset_map(pmdp,address) pte_offset_kernel(pmdp, address)
+#define pte_offset_map_nested(pmdp, address) pte_offset_kernel(pmdp, address)
 #define pte_unmap(pte)		((void)0)
 #define pte_unmap_nested(pte)	((void)0)
 
_
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