proc: move /proc/zoneinfo boilerplate to mm/vmstat.c

[linux-2.6-omap-h63xx.git] / include / asm-x86 / page.h

diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index 79544e6ffb8b8b06060ddb93988972b618e3ef02..d4f1d5791fc186f29a9a60d4fe182d80f05038e4 100644 (file)
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -57,6 +57,7 @@ typedef struct { pgdval_t pgd; } pgd_t;
 typedef struct { pgprotval_t pgprot; } pgprot_t;
 
 extern int page_is_ram(unsigned long pagenr);
+extern int pagerange_is_ram(unsigned long start, unsigned long end);
 extern int devmem_is_allowed(unsigned long pagenr);
 extern void map_devmem(unsigned long pfn, unsigned long size,
                       pgprot_t vma_prot);
@@ -178,6 +179,7 @@ static inline pteval_t native_pte_flags(pte_t pte)
 #endif /* CONFIG_PARAVIRT */
 
 #define __pa(x)                __phys_addr((unsigned long)(x))
+#define __pa_nodebug(x)        __phys_addr_nodebug((unsigned long)(x))
 /* __pa_symbol should be used for C visible symbols.
    This seems to be the official gcc blessed way to do such arithmetic. */
 #define __pa_symbol(x) __pa(__phys_reloc_hide((unsigned long)(x)))
@@ -187,9 +189,14 @@ static inline pteval_t native_pte_flags(pte_t pte)
 #define __boot_va(x)           __va(x)
 #define __boot_pa(x)           __pa(x)
 
+/*
+ * virt_to_page(kaddr) returns a valid pointer if and only if
+ * virt_addr_valid(kaddr) returns true.
+ */
 #define virt_to_page(kaddr)    pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 #define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
-#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+extern bool __virt_addr_valid(unsigned long kaddr);
+#define virt_addr_valid(kaddr) __virt_addr_valid((unsigned long) (kaddr))
 
 #endif /* __ASSEMBLY__ */