From dc8ecb43701a78bd3c38e7fed1d1c76840579450 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Mon, 27 Mar 2006 01:15:34 -0800 Subject: [PATCH] [PATCH] unify pfn_to_page: x86_64 pfn_to_page x86_64 can use generic funcs. For DISCONTIGMEM, CONFIG_OUT_OF_LINE_PFN_TO_PAGE is selected. Signed-off-by: KAMEZAWA Hiroyuki Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/Kconfig | 4 ++++ arch/x86_64/mm/numa.c | 15 --------------- include/asm-x86_64/mmzone.h | 4 ---- include/asm-x86_64/page.h | 3 +-- 4 files changed, 5 insertions(+), 21 deletions(-) diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 1cb4aa241c8c..4310b4a311a5 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -334,6 +334,10 @@ config HAVE_ARCH_EARLY_PFN_TO_NID def_bool y depends on NUMA +config OUT_OF_LINE_PFN_TO_PAGE + def_bool y + depends on DISCONTIGMEM + config NR_CPUS int "Maximum number of CPUs (2-256)" range 2 255 diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index 63c72641b737..4be82d6e2b48 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -377,21 +377,6 @@ EXPORT_SYMBOL(node_data); * Should do that. */ -/* Requires pfn_valid(pfn) to be true */ -struct page *pfn_to_page(unsigned long pfn) -{ - int nid = phys_to_nid(((unsigned long)(pfn)) << PAGE_SHIFT); - return (pfn - node_start_pfn(nid)) + NODE_DATA(nid)->node_mem_map; -} -EXPORT_SYMBOL(pfn_to_page); - -unsigned long page_to_pfn(struct page *page) -{ - return (long)(((page) - page_zone(page)->zone_mem_map) + - page_zone(page)->zone_start_pfn); -} -EXPORT_SYMBOL(page_to_pfn); - int pfn_valid(unsigned long pfn) { unsigned nid; diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h index 937f99b26883..6b18cd8f293d 100644 --- a/include/asm-x86_64/mmzone.h +++ b/include/asm-x86_64/mmzone.h @@ -44,12 +44,8 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) #define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT) #define kvaddr_to_nid(kaddr) phys_to_nid(__pa(kaddr)) -extern struct page *pfn_to_page(unsigned long pfn); -extern unsigned long page_to_pfn(struct page *page); extern int pfn_valid(unsigned long pfn); #endif -#define local_mapnr(kvaddr) \ - ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) ) #endif #endif diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h index 615e3e494929..408185bac351 100644 --- a/include/asm-x86_64/page.h +++ b/include/asm-x86_64/page.h @@ -123,8 +123,6 @@ typedef struct { unsigned long pgprot; } pgprot_t; #define __boot_va(x) __va(x) #define __boot_pa(x) __pa(x) #ifdef CONFIG_FLATMEM -#define pfn_to_page(pfn) (mem_map + (pfn)) -#define page_to_pfn(page) ((unsigned long)((page) - mem_map)) #define pfn_valid(pfn) ((pfn) < end_pfn) #endif @@ -140,6 +138,7 @@ typedef struct { unsigned long pgprot; } pgprot_t; #endif /* __KERNEL__ */ +#include #include #endif /* _X86_64_PAGE_H */ -- 2.20.1