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[PATCH] i386: little pgtable.h consolidation vs 2/3level 

Join together some common functions (pmd_page{,_kernel}) over 2level and
3level pages.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2005-10-30 14:59:31 -08:00 committed by Linus Torvalds
parent d16aafff25
commit ca140fdadb
3 changed files with 5 additions and 10 deletions
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5
include/asm-i386/pgtable-2level.h
View File

@ -26,11 +26,6 @@
#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
#define pmd_page_kernel(pmd) \
((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
/*
* All present user pages are user-executable:
*/

5
include/asm-i386/pgtable-3level.h
View File

@ -74,11 +74,6 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
*/
static inline void pud_clear (pud_t * pud) { }
#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
#define pmd_page_kernel(pmd) \
((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
#define pud_page(pud) \
((struct page *) __va(pud_val(pud) & PAGE_MASK))

5
include/asm-i386/pgtable.h
View File

@ -369,6 +369,11 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
#define pte_offset_kernel(dir, address) \
((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address))
#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
#define pmd_page_kernel(pmd) \
((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
/*
* Helper function that returns the kernel pagetable entry controlling
* the virtual address 'address'. NULL means no pagetable entry present.