diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mm_types.h | 5 | ||||
| -rw-r--r-- | include/linux/mmzone.h | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 5ed8f6292a53..2c471a2c43fa 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -206,6 +206,11 @@ struct page { #endif } _struct_page_alignment; +/* + * Used for sizing the vmemmap region on some architectures + */ +#define STRUCT_PAGE_MAX_SHIFT (order_base_2(sizeof(struct page))) + #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) #define PAGE_FRAG_CACHE_MAX_ORDER get_order(PAGE_FRAG_CACHE_MAX_SIZE) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 847705a6d0ec..db023a92f3a4 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -783,6 +783,12 @@ void memory_present(int nid, unsigned long start, unsigned long end); static inline void memory_present(int nid, unsigned long start, unsigned long end) {} #endif +#if defined(CONFIG_SPARSEMEM) +void memblocks_present(void); +#else +static inline void memblocks_present(void) {} +#endif + #ifdef CONFIG_HAVE_MEMORYLESS_NODES int local_memory_node(int node_id); #else |