提交 ca140fda 编写于 作者: P Paolo 'Blaisorblade' Giarrusso 提交者: Linus Torvalds

[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: NPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: NHugh Dickins <hugh@veritas.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 d16aafff
......@@ -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:
*/
......
......@@ -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))
......
......@@ -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.
......
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