18  * As in zbud, pages are divided into "chunks".  The size of the chunks is
52  * allocation granularity will be in chunks of size PAGE_SIZE/64. Some chunks
55  * which shows the max number of free chunks in z3fold page, also there will
99  * struct z3fold_header - z3fold page metadata occupying first chunks of each
109  * @first_chunks:	the size of the first buddy in chunks, 0 if free
110  * @middle_chunks:	the size of the middle buddy in chunks, 0 if free
111  * @last_chunks:	the size of the last buddy in chunks, 0 if free
203 /* Converts an allocation size in bytes to size in z3fold chunks */
578  * Returns the number of free chunks in a z3fold page.
587 	 * of chunks occupied by the first and the last objects.  in num_free_chunks()
620 static inline enum buddy get_free_buddy(struct z3fold_header *zhdr, int chunks)  in get_free_buddy()  argument
626 		    chunks <= zhdr->start_middle - ZHDR_CHUNKS)  in get_free_buddy()
693 		short chunks = size_to_chunks(sz);  in compact_single_buddy()  local
703 		new_bud = get_free_buddy(new_zhdr, chunks);  in compact_single_buddy()
707 			new_zhdr->first_chunks = chunks;  in compact_single_buddy()
711 			new_zhdr->middle_chunks = chunks;  in compact_single_buddy()
717 			new_zhdr->last_chunks = chunks;  in compact_single_buddy()
780 	 * there's substantial gain (at least BIG_CHUNK_GAP chunks)  in z3fold_compact_page()
863 	int chunks = size_to_chunks(size), i;  in __z3fold_alloc()  local
869 	for_each_unbuddied_list(i, chunks) {  in __z3fold_alloc()
926 			l = &unbuddied[chunks];  in __z3fold_alloc()
1077 	int chunks = size_to_chunks(size);  in z3fold_alloc()  local
1095 			bud = get_free_buddy(zhdr, chunks);  in z3fold_alloc()
1102 				pr_err("No free chunks in unbuddied\n");  in z3fold_alloc()
1162 		zhdr->first_chunks = chunks;  in z3fold_alloc()
1164 		zhdr->last_chunks = chunks;  in z3fold_alloc()
1166 		zhdr->middle_chunks = chunks;  in z3fold_alloc()