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OpenCloudOS-Kernel
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x86: unify pte_offset_kernel 

Impact: cleanup

Unify and demacro pte_offset_kernel.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-05 11:31:07 -08:00
parent 346309cff6
commit 3fbc2444f4
3 changed files with 5 additions and 6 deletions
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5
arch/x86/include/asm/pgtable.h
View File

@ -509,6 +509,11 @@ static inline unsigned pte_index(unsigned long address)
return (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1);
}
static inline pte_t *pte_offset_kernel(pmd_t *pmd, unsigned long address)
{
return (pte_t *)pmd_page_vaddr(*pmd) + pte_index(address);
}
#if PAGETABLE_LEVELS > 2
static inline int pud_present(pud_t pud)
{

3
arch/x86/include/asm/pgtable_32.h
View File

@ -97,9 +97,6 @@ extern unsigned long pg0[];
static inline int pud_large(pud_t pud) { return 0; }
#define pte_offset_kernel(dir, address) \
((pte_t *)pmd_page_vaddr(*(dir)) + pte_index((address)))
#if defined(CONFIG_HIGHPTE)
#define pte_offset_map(dir, address) \
((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE0) + \

3
arch/x86/include/asm/pgtable_64.h
View File

@ -198,9 +198,6 @@ static inline int pud_large(pud_t pte)
/* PTE - Level 1 access. */
#define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \
pte_index((address)))
/* x86-64 always has all page tables mapped. */
#define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
#define pte_offset_map_nested(dir, address) pte_offset_kernel((dir), (address))