diff options
Diffstat (limited to 'include/asm-generic/memory_model.h')
| -rw-r--r-- | include/asm-generic/memory_model.h | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h index 52226e14bd7..14909b0b9ca 100644 --- a/include/asm-generic/memory_model.h +++ b/include/asm-generic/memory_model.h @@ -1,7 +1,6 @@ #ifndef __ASM_MEMORY_MODEL_H #define __ASM_MEMORY_MODEL_H -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ #if defined(CONFIG_FLATMEM) @@ -35,12 +34,12 @@ #define __pfn_to_page(pfn) \ ({ unsigned long __pfn = (pfn); \ - unsigned long __nid = arch_pfn_to_nid(pfn); \ + unsigned long __nid = arch_pfn_to_nid(__pfn); \ NODE_DATA(__nid)->node_mem_map + arch_local_page_offset(__pfn, __nid);\ }) #define __page_to_pfn(pg) \ -({ struct page *__pg = (pg); \ +({ const struct page *__pg = (pg); \ struct pglist_data *__pgdat = NODE_DATA(page_to_nid(__pg)); \ (unsigned long)(__pg - __pgdat->node_mem_map) + \ __pgdat->node_start_pfn; \ @@ -48,17 +47,17 @@ #elif defined(CONFIG_SPARSEMEM_VMEMMAP) -/* memmap is virtually contigious. */ +/* memmap is virtually contiguous. */ #define __pfn_to_page(pfn) (vmemmap + (pfn)) -#define __page_to_pfn(page) ((page) - vmemmap) +#define __page_to_pfn(page) (unsigned long)((page) - vmemmap) #elif defined(CONFIG_SPARSEMEM) /* - * Note: section's mem_map is encorded to reflect its start_pfn. + * Note: section's mem_map is encoded to reflect its start_pfn. * section[i].section_mem_map == mem_map's address - start_pfn; */ #define __page_to_pfn(pg) \ -({ struct page *__pg = (pg); \ +({ const struct page *__pg = (pg); \ int __sec = page_to_section(__pg); \ (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); \ }) @@ -70,17 +69,9 @@ }) #endif /* CONFIG_FLATMEM/DISCONTIGMEM/SPARSEMEM */ -#ifdef CONFIG_OUT_OF_LINE_PFN_TO_PAGE -struct page; -/* this is useful when inlined pfn_to_page is too big */ -extern struct page *pfn_to_page(unsigned long pfn); -extern unsigned long page_to_pfn(struct page *page); -#else #define page_to_pfn __page_to_pfn #define pfn_to_page __pfn_to_page -#endif /* CONFIG_OUT_OF_LINE_PFN_TO_PAGE */ #endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ #endif |