229 	struct bitmap_storage *store = &bitmap->storage;  in __write_sb_page()  local
237 	if (pg_index == store->file_pages - 1) {  in __write_sb_page()
238 		unsigned int last_page_size = store->bytes & (PAGE_SIZE - 1);  in __write_sb_page()
437 	struct bitmap_storage *store = &bitmap->storage;  in filemap_write_page()  local
438 	struct page *page = store->filemap[pg_index];  in filemap_write_page()
442 			DIV_ROUND_UP(store->bytes, PAGE_SIZE);  in filemap_write_page()
445 	if (store->file)  in filemap_write_page()
780 static inline unsigned long file_page_index(struct bitmap_storage *store,  in file_page_index()  argument
783 	if (store->sb_page)  in file_page_index()
789 static inline unsigned long file_page_offset(struct bitmap_storage *store,  in file_page_offset()  argument
792 	if (store->sb_page)  in file_page_offset()
801 static inline struct page *filemap_get_page(struct bitmap_storage *store,  in filemap_get_page()  argument
804 	if (file_page_index(store, chunk) >= store->file_pages)  in filemap_get_page()
806 	return store->filemap[file_page_index(store, chunk)];  in filemap_get_page()
809 static int md_bitmap_storage_alloc(struct bitmap_storage *store,  in md_bitmap_storage_alloc()  argument
824 	store->filemap = kmalloc_array(num_pages, sizeof(struct page *),  in md_bitmap_storage_alloc()
826 	if (!store->filemap)  in md_bitmap_storage_alloc()
829 	if (with_super && !store->sb_page) {  in md_bitmap_storage_alloc()
830 		store->sb_page = alloc_page(GFP_KERNEL|__GFP_ZERO);  in md_bitmap_storage_alloc()
831 		if (store->sb_page == NULL)  in md_bitmap_storage_alloc()
836 	if (store->sb_page) {  in md_bitmap_storage_alloc()
837 		store->filemap[0] = store->sb_page;  in md_bitmap_storage_alloc()
839 		store->sb_index = offset;  in md_bitmap_storage_alloc()
843 		store->filemap[pnum] = alloc_page(GFP_KERNEL|__GFP_ZERO);  in md_bitmap_storage_alloc()
844 		if (!store->filemap[pnum]) {  in md_bitmap_storage_alloc()
845 			store->file_pages = pnum;  in md_bitmap_storage_alloc()
849 	store->file_pages = pnum;  in md_bitmap_storage_alloc()
853 	store->filemap_attr = kzalloc(  in md_bitmap_storage_alloc()
856 	if (!store->filemap_attr)  in md_bitmap_storage_alloc()
859 	store->bytes = bytes;  in md_bitmap_storage_alloc()
864 static void md_bitmap_file_unmap(struct bitmap_storage *store)  in md_bitmap_file_unmap()  argument
866 	struct file *file = store->file;  in md_bitmap_file_unmap()
867 	struct page *sb_page = store->sb_page;  in md_bitmap_file_unmap()
868 	struct page **map = store->filemap;  in md_bitmap_file_unmap()
869 	int pages = store->file_pages;  in md_bitmap_file_unmap()
875 	kfree(store->filemap_attr);  in md_bitmap_file_unmap()
951 	struct bitmap_storage *store = &bitmap->storage;  in md_bitmap_file_set_bit()  local
952 	unsigned long index = file_page_index(store, chunk);  in md_bitmap_file_set_bit()
956 		node_offset = bitmap->cluster_slot * store->file_pages;  in md_bitmap_file_set_bit()
981 	struct bitmap_storage *store = &bitmap->storage;  in md_bitmap_file_clear_bit()  local
982 	unsigned long index = file_page_index(store, chunk);  in md_bitmap_file_clear_bit()
986 		node_offset = bitmap->cluster_slot * store->file_pages;  in md_bitmap_file_clear_bit()
1110 	struct bitmap_storage *store = &bitmap->storage;  in md_bitmap_init_from_disk()  local
1111 	struct file *file = store->file;  in md_bitmap_init_from_disk()
1119 		store->filemap = NULL;  in md_bitmap_init_from_disk()
1120 		store->file_pages = 0;  in md_bitmap_init_from_disk()
1132 	if (file && i_size_read(file->f_mapping->host) < store->bytes) {  in md_bitmap_init_from_disk()
1136 			store->bytes);  in md_bitmap_init_from_disk()
1142 		node_offset = bitmap->cluster_slot * (DIV_ROUND_UP(store->bytes, PAGE_SIZE));  in md_bitmap_init_from_disk()
1144 	for (i = 0; i < store->file_pages; i++) {  in md_bitmap_init_from_disk()
1145 		struct page *page = store->filemap[i];  in md_bitmap_init_from_disk()
1149 		if (i == store->file_pages - 1)  in md_bitmap_init_from_disk()
1150 			count = store->bytes - i * PAGE_SIZE;  in md_bitmap_init_from_disk()
1167 		for (i = 0; i < store->file_pages; i++) {  in md_bitmap_init_from_disk()
1168 			struct page *page = store->filemap[i];  in md_bitmap_init_from_disk()
1216 		 bmname(bitmap), store->file_pages,  in md_bitmap_init_from_disk()
2137 	struct bitmap_storage store;  in md_bitmap_resize()  local
2184 	memset(&store, 0, sizeof(store));  in md_bitmap_resize()
2186 		ret = md_bitmap_storage_alloc(&store, chunks,  in md_bitmap_resize()
2191 		md_bitmap_file_unmap(&store);  in md_bitmap_resize()
2200 		md_bitmap_file_unmap(&store);  in md_bitmap_resize()
2207 	store.file = bitmap->storage.file;  in md_bitmap_resize()
2210 	if (store.sb_page && bitmap->storage.sb_page)  in md_bitmap_resize()
2211 		memcpy(page_address(store.sb_page),  in md_bitmap_resize()
2216 	bitmap->storage = store;  in md_bitmap_resize()