217 	struct bitmap_storage *store = &bitmap->storage;  in write_sb_page()  local
227 		if (page->index == store->file_pages-1) {  in write_sb_page()
228 			int last_page_size = store->bytes & (PAGE_SIZE-1);  in write_sb_page()
748 static inline unsigned long file_page_index(struct bitmap_storage *store,  in file_page_index()  argument
751 	if (store->sb_page)  in file_page_index()
757 static inline unsigned long file_page_offset(struct bitmap_storage *store,  in file_page_offset()  argument
760 	if (store->sb_page)  in file_page_offset()
769 static inline struct page *filemap_get_page(struct bitmap_storage *store,  in filemap_get_page()  argument
772 	if (file_page_index(store, chunk) >= store->file_pages)  in filemap_get_page()
774 	return store->filemap[file_page_index(store, chunk)];  in filemap_get_page()
777 static int md_bitmap_storage_alloc(struct bitmap_storage *store,  in md_bitmap_storage_alloc()  argument
792 	store->filemap = kmalloc_array(num_pages, sizeof(struct page *),  in md_bitmap_storage_alloc()
794 	if (!store->filemap)  in md_bitmap_storage_alloc()
797 	if (with_super && !store->sb_page) {  in md_bitmap_storage_alloc()
798 		store->sb_page = alloc_page(GFP_KERNEL|__GFP_ZERO);  in md_bitmap_storage_alloc()
799 		if (store->sb_page == NULL)  in md_bitmap_storage_alloc()
804 	if (store->sb_page) {  in md_bitmap_storage_alloc()
805 		store->filemap[0] = store->sb_page;  in md_bitmap_storage_alloc()
807 		store->sb_page->index = offset;  in md_bitmap_storage_alloc()
811 		store->filemap[pnum] = alloc_page(GFP_KERNEL|__GFP_ZERO);  in md_bitmap_storage_alloc()
812 		if (!store->filemap[pnum]) {  in md_bitmap_storage_alloc()
813 			store->file_pages = pnum;  in md_bitmap_storage_alloc()
816 		store->filemap[pnum]->index = pnum + offset;  in md_bitmap_storage_alloc()
818 	store->file_pages = pnum;  in md_bitmap_storage_alloc()
822 	store->filemap_attr = kzalloc(  in md_bitmap_storage_alloc()
825 	if (!store->filemap_attr)  in md_bitmap_storage_alloc()
828 	store->bytes = bytes;  in md_bitmap_storage_alloc()
833 static void md_bitmap_file_unmap(struct bitmap_storage *store)  in md_bitmap_file_unmap()  argument
839 	file = store->file;  in md_bitmap_file_unmap()
840 	map = store->filemap;  in md_bitmap_file_unmap()
841 	pages = store->file_pages;  in md_bitmap_file_unmap()
842 	sb_page = store->sb_page;  in md_bitmap_file_unmap()
848 	kfree(store->filemap_attr);  in md_bitmap_file_unmap()
932 	struct bitmap_storage *store = &bitmap->storage;  in md_bitmap_file_set_bit()  local
936 		node_offset = bitmap->cluster_slot * store->file_pages;  in md_bitmap_file_set_bit()
961 	struct bitmap_storage *store = &bitmap->storage;  in md_bitmap_file_clear_bit()  local
965 		node_offset = bitmap->cluster_slot * store->file_pages;  in md_bitmap_file_clear_bit()
1066 	struct bitmap_storage *store = &bitmap->storage;  in md_bitmap_init_from_disk()  local
1069 	file = store->file;  in md_bitmap_init_from_disk()
1073 		store->filemap = NULL;  in md_bitmap_init_from_disk()
1074 		store->file_pages = 0;  in md_bitmap_init_from_disk()
1090 	if (file && i_size_read(file->f_mapping->host) < store->bytes) {  in md_bitmap_init_from_disk()
1094 			store->bytes);  in md_bitmap_init_from_disk()
1104 		node_offset = bitmap->cluster_slot * (DIV_ROUND_UP(store->bytes, PAGE_SIZE));  in md_bitmap_init_from_disk()
1113 			if (index == store->file_pages-1)  in md_bitmap_init_from_disk()
1114 				count = store->bytes - index * PAGE_SIZE;  in md_bitmap_init_from_disk()
1117 			page = store->filemap[index];  in md_bitmap_init_from_disk()
1169 		 bmname(bitmap), store->file_pages,  in md_bitmap_init_from_disk()
2068 	struct bitmap_storage store;  in md_bitmap_resize()  local
2114 	memset(&store, 0, sizeof(store));  in md_bitmap_resize()
2116 		ret = md_bitmap_storage_alloc(&store, chunks,  in md_bitmap_resize()
2121 		md_bitmap_file_unmap(&store);  in md_bitmap_resize()
2130 		md_bitmap_file_unmap(&store);  in md_bitmap_resize()
2137 	store.file = bitmap->storage.file;  in md_bitmap_resize()
2140 	if (store.sb_page && bitmap->storage.sb_page)  in md_bitmap_resize()
2141 		memcpy(page_address(store.sb_page),  in md_bitmap_resize()
2146 	bitmap->storage = store;  in md_bitmap_resize()