Messages in this thread Patch in this message |  | | From | Cody P Schafer <> | Subject | [PATCH 1/9] mm: add SECTION_IN_PAGE_FLAGS | Date | Thu, 17 Jan 2013 14:52:53 -0800 |
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Instead of directly utilizing a combination of config options to determine this, add a macro to specifically address it.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> --- include/linux/mm.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h index 66e2f7c..ef69564 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -625,6 +625,10 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma) #define NODE_NOT_IN_PAGE_FLAGS #endif +#if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP) +#define SECTION_IN_PAGE_FLAGS +#endif + /* * Define the bit shifts to access each section. For non-existent * sections we define the shift as 0; that plus a 0 mask ensures @@ -727,7 +731,7 @@ static inline struct zone *page_zone(const struct page *page) return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)]; } -#if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP) +#ifdef SECTION_IN_PAGE_FLAGS static inline void set_page_section(struct page *page, unsigned long section) { page->flags &= ~(SECTIONS_MASK << SECTIONS_PGSHIFT); @@ -757,7 +761,7 @@ static inline void set_page_links(struct page *page, enum zone_type zone, { set_page_zone(page, zone); set_page_node(page, node); -#if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP) +#ifdef SECTION_IN_PAGE_FLAGS set_page_section(page, pfn_to_section_nr(pfn)); #endif } -- 1.8.0.3
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