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authorJeremy Fitzhardinge <jeremy@goop.org>2009-02-05 20:31:05 +0100
committerJeremy Fitzhardinge <jeremy@goop.org>2009-02-06 21:31:50 +0100
commit97e2817d3423d753fd2f80ea936a370032846382 (patch)
tree1f33067bf362f5a39c50bb5b75bba951bfb49963 /arch/x86/include/asm/pgtable.h
parentx86: unify pmd_pfn (diff)
downloadlinux-97e2817d3423d753fd2f80ea936a370032846382.tar.xz
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x86: unify pmd_pfn
Impact: cleanup Unify pmd_pfn. Unfortunately it can't be demacroed because it has a cyclic dependency on linux/mm.h:page_to_nid(). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
-rw-r--r--arch/x86/include/asm/pgtable.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 532144c2f1cc..49b5cff78c28 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -489,6 +489,15 @@ static inline unsigned pmd_index(unsigned long address)
return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
}
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ *
+ * (Currently stuck as a macro because of indirect forward reference
+ * to linux/mm.h:page_to_nid())
+ */
+#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
+
#if PAGETABLE_LEVELS > 2
static inline int pud_present(pud_t pud)
{