/tools/include/

e resizing functions * * Note: any attempt to resize a zone should has pgdat_resize_lock() * zone_span_writelock() both held. This ensure the size of a zone * can't be changed while pgdat_resize_lock() held. */ static inline unsigned zone_span_seqbegin(struct zone *zone) { return read_seqbegin(&zone->span_seqlock); } static inline int zone_span_seqretry(struct zone *zone, unsigned iv) { return read_seqretry(&zone->span_seqlock, iv); } static inline void zone_span_writelock(struct zone *zone) { write_seqlock(&zone->span_seqlock); } static inline void zone_span_writeunlock(struct zone *zone) { write_sequnlock(&zone->span_seqlock); } static inline void zone_seqlock_init(struct zone *zone) { seqlock_init(&zone->span_seqlock); } extern int zone_grow_free_lists(struct zone *zone, unsigned long new_nr_pages); extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages); extern int add_one_highpage(struct page *page, int pfn, int bad_ppro); /* VM interface that may be used by firmware interface */ extern int online_pages(unsigned long, unsigned long, int); extern void __offline_isolated_pages(unsigned long, unsigned long); typedef void (*online_page_callback_t)(struct page *page); extern int set_online_page_callback(online_page_callback_t callback); extern int restore_online_page_callback(online_page_callback_t callback); extern void __online_page_set_limits(struct page *page); extern void __online_page_increment_counters(struct page *page); extern void __online_page_free(struct page *page); #ifdef CONFIG_MEMORY_HOTREMOVE extern bool is_pageblock_removable_nolock(struct page *page); #endif /* CONFIG_MEMORY_HOTREMOVE */ /* reasonably generic interface to expand the physical pages in a zone */ extern int __add_pages(int nid, struct zone *zone, unsigned long start_pfn, unsigned long nr_pages); extern int __remove_pages(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages); #ifdef CONFIG_NUMA extern int memory_add_physaddr_to_nid(u64 start); #else static inline int memory_add_physaddr_to_nid(u64 start) { return 0; } #endif #ifdef CONFIG_HAVE_ARCH_NODEDATA_EXTENSION /* * For supporting node-hotadd, we have to allocate a new pgdat. * * If an arch has generic style NODE_DATA(), * node_data[nid] = kzalloc() works well. But it depends on the architecture. * * In general, generic_alloc_nodedata() is used. * Now, arch_free_nodedata() is just defined for error path of node_hot_add. * */ extern pg_data_t *arch_alloc_nodedata