18  * As in zbud, pages are divided into "chunks".  The size of the chunks is
48  * allocation granularity will be in chunks of size PAGE_SIZE/64. Some chunks
51  * which shows the max number of free chunks in z3fold page, also there will
95  * struct z3fold_header - z3fold page metadata occupying first chunks of each
105  * @first_chunks:	the size of the first buddy in chunks, 0 if free
106  * @middle_chunks:	the size of the middle buddy in chunks, 0 if free
107  * @last_chunks:	the size of the last buddy in chunks, 0 if free
198 /* Converts an allocation size in bytes to size in z3fold chunks */
520  * Returns the number of free chunks in a z3fold page.
529 	 * of chunks occupied by the first and the last objects.  in num_free_chunks()
562 static inline enum buddy get_free_buddy(struct z3fold_header *zhdr, int chunks)  in get_free_buddy()  argument
568 		    chunks <= zhdr->start_middle - ZHDR_CHUNKS)  in get_free_buddy()
635 		short chunks = size_to_chunks(sz);  in compact_single_buddy()  local
645 		new_bud = get_free_buddy(new_zhdr, chunks);  in compact_single_buddy()
649 			new_zhdr->first_chunks = chunks;  in compact_single_buddy()
653 			new_zhdr->middle_chunks = chunks;  in compact_single_buddy()
659 			new_zhdr->last_chunks = chunks;  in compact_single_buddy()
718 	 * there's substantial gain (at least BIG_CHUNK_GAP chunks)  in z3fold_compact_page()
797 	int chunks = size_to_chunks(size), i;  in __z3fold_alloc()  local
803 	for_each_unbuddied_list(i, chunks) {  in __z3fold_alloc()
859 			l = &unbuddied[chunks];  in __z3fold_alloc()
1013 	int chunks = size_to_chunks(size);  in z3fold_alloc()  local
1031 			bud = get_free_buddy(zhdr, chunks);  in z3fold_alloc()
1036 				pr_err("No free chunks in unbuddied\n");  in z3fold_alloc()
1074 		zhdr->first_chunks = chunks;  in z3fold_alloc()
1076 		zhdr->last_chunks = chunks;  in z3fold_alloc()
1078 		zhdr->middle_chunks = chunks;  in z3fold_alloc()