185 static void subsection_mask_set(unsigned long *map, unsigned long pfn,  in subsection_mask_set()  argument
188 	int idx = subsection_map_index(pfn);  in subsection_mask_set()
189 	int end = subsection_map_index(pfn + nr_pages - 1);  in subsection_mask_set()
194 void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages)  in subsection_map_init()  argument
196 	int end_sec = pfn_to_section_nr(pfn + nr_pages - 1);  in subsection_map_init()
197 	unsigned long nr, start_sec = pfn_to_section_nr(pfn);  in subsection_map_init()
207 				- (pfn & ~PAGE_SECTION_MASK));  in subsection_map_init()
209 		subsection_mask_set(ms->usage->subsection_map, pfn, pfns);  in subsection_map_init()
212 				pfns, subsection_map_index(pfn),  in subsection_map_init()
213 				subsection_map_index(pfn + pfns - 1));  in subsection_map_init()
215 		pfn += pfns;  in subsection_map_init()
220 void __init subsection_map_init(unsigned long pfn, unsigned long nr_pages)  in subsection_map_init()  argument
228 	unsigned long pfn;  in memory_present()  local
245 	for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) {  in memory_present()
246 		unsigned long section = pfn_to_section_nr(pfn);  in memory_present()
429 struct page __init *__populate_section_memmap(unsigned long pfn,  in __populate_section_memmap()  argument
522 		unsigned long pfn = section_nr_to_pfn(pnum);  in sparse_init_nid()  local
527 		map = __populate_section_memmap(pfn, PAGES_PER_SECTION,  in sparse_init_nid()
595 	unsigned long pfn;  in online_mem_sections()  local
597 	for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {  in online_mem_sections()
598 		unsigned long section_nr = pfn_to_section_nr(pfn);  in online_mem_sections()
613 	unsigned long pfn;  in offline_mem_sections()  local
615 	for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {  in offline_mem_sections()
616 		unsigned long section_nr = pfn_to_section_nr(pfn);  in offline_mem_sections()
632 static struct page * __meminit populate_section_memmap(unsigned long pfn,  in populate_section_memmap()  argument
636 	return __populate_section_memmap(pfn, nr_pages, nid, altmap, pgmap);  in populate_section_memmap()
639 static void depopulate_section_memmap(unsigned long pfn, unsigned long nr_pages,  in depopulate_section_memmap()  argument
642 	unsigned long start = (unsigned long) pfn_to_page(pfn);  in depopulate_section_memmap()
655 static int clear_subsection_map(unsigned long pfn, unsigned long nr_pages)  in clear_subsection_map()  argument
659 	struct mem_section *ms = __pfn_to_section(pfn);  in clear_subsection_map()
663 	subsection_mask_set(map, pfn, nr_pages);  in clear_subsection_map()
669 				pfn, nr_pages))  in clear_subsection_map()
682 static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages)  in fill_subsection_map()  argument
684 	struct mem_section *ms = __pfn_to_section(pfn);  in fill_subsection_map()
689 	subsection_mask_set(map, pfn, nr_pages);  in fill_subsection_map()
704 struct page * __meminit populate_section_memmap(unsigned long pfn,  in populate_section_memmap()  argument
712 static void depopulate_section_memmap(unsigned long pfn, unsigned long nr_pages,  in depopulate_section_memmap()  argument
715 	kvfree(pfn_to_page(pfn));  in depopulate_section_memmap()
748 static int clear_subsection_map(unsigned long pfn, unsigned long nr_pages)  in clear_subsection_map()  argument
758 static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages)  in fill_subsection_map()  argument
780 static void section_deactivate(unsigned long pfn, unsigned long nr_pages,  in section_deactivate()  argument
783 	struct mem_section *ms = __pfn_to_section(pfn);  in section_deactivate()
788 	if (clear_subsection_map(pfn, nr_pages))  in section_deactivate()
793 		unsigned long section_nr = pfn_to_section_nr(pfn);  in section_deactivate()
820 		depopulate_section_memmap(pfn, nr_pages, altmap);  in section_deactivate()
828 static struct page * __meminit section_activate(int nid, unsigned long pfn,  in section_activate()  argument
832 	struct mem_section *ms = __pfn_to_section(pfn);  in section_activate()
844 	rc = fill_subsection_map(pfn, nr_pages);  in section_activate()
860 		return pfn_to_page(pfn);  in section_activate()
862 	memmap = populate_section_memmap(pfn, nr_pages, nid, altmap, pgmap);  in section_activate()
864 		section_deactivate(pfn, nr_pages, altmap);  in section_activate()
925 void sparse_remove_section(struct mem_section *ms, unsigned long pfn,  in sparse_remove_section()  argument
929 	clear_hwpoisoned_pages(pfn_to_page(pfn) + map_offset,  in sparse_remove_section()
931 	section_deactivate(pfn, nr_pages, altmap);  in sparse_remove_section()