* is the first PFN that needs to be initialised.
*/
unsigned long first_deferred_pfn;
- unsigned long static_init_size;
+ /* Number of non-deferred pages */
+ unsigned long static_init_pgcnt;
#endif /* CONFIG_DEFERRED_STRUCT_PAGE_INIT */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
/* Fields commonly accessed by the page reclaim scanner */
struct lruvec lruvec;
- /*
- * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on
- * this node's LRU. Maintained by the pageout code.
- */
- unsigned int inactive_ratio;
-
unsigned long flags;
ZONE_PADDING(_pad2_)
#define SECTION_ROOT_MASK (SECTIONS_PER_ROOT - 1)
#ifdef CONFIG_SPARSEMEM_EXTREME
-extern struct mem_section *mem_section[NR_SECTION_ROOTS];
+extern struct mem_section **mem_section;
#else
extern struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT];
#endif
static inline struct mem_section *__nr_to_section(unsigned long nr)
{
+#ifdef CONFIG_SPARSEMEM_EXTREME
+ if (!mem_section)
+ return NULL;
+#endif
if (!mem_section[SECTION_NR_TO_ROOT(nr)])
return NULL;
return &mem_section[SECTION_NR_TO_ROOT(nr)][nr & SECTION_ROOT_MASK];