Messages in this thread Patch in this message | | | Subject | [RFC][PATCH 29/35] um: use pte_offset_kernel() as base for pte_offset_map*() | From | Dave Hansen <> | Date | Fri, 01 May 2009 07:42:46 -0700 |
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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@linux.vnet.ibm.com> ---
linux-2.6.git-dave/arch/um/include/asm/ptemap.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff -puN arch/um/include/asm/ptemap.h~um-pte_offset_kernel arch/um/include/asm/ptemap.h --- linux-2.6.git/arch/um/include/asm/ptemap.h~um-pte_offset_kernel 2009-04-30 15:11:10.000000000 -0700 +++ linux-2.6.git-dave/arch/um/include/asm/ptemap.h 2009-04-30 15:11:10.000000000 -0700 @@ -1,9 +1,8 @@ #ifndef _UM_ASM_PTEMAP_H #define _UM_ASM_PTEMAP_H -#define pte_offset_map(dir, address) \ - ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address)) -#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address) +#define pte_offset_map(dir, address) pte_offset_kernel(dir, address) +#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address) #define pte_unmap(pte) do { } while (0) #define pte_unmap_nested(pte) do { } while (0) _
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