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4  * SPDX-License-Identifier: Apache-2.0
13 /* Theese validation checks are non-trivially expensive, so enable
23 /* Chunks are identified by their offset in 8 byte units from the
24  * first address in the buffer (a zero-valued chunkid_t is used as a
25  * null; that chunk would always point into the metadata at the start
39  *                  8-byte units.  The bottom bit stores a "used" flag.
43  * The free lists are circular lists, one for each power-of-two size
49  * by SIZE_AND_USED of the current chunk at the bottom, and LEFT_SIZE of
98 	return big_heap_chunks(h->end_chunk);  in big_heap()
123 	CHECK(c <= h->end_chunk);  in chunk_set()
201 	return c - chunk_field(h, c, LEFT_SIZE);  in left_chunk()
232 	return (bytes + CHUNK_UNIT - 1U) / CHUNK_UNIT;  in chunksz()
247 	return chunksz_in * CHUNK_UNIT - chunk_header_bytes(h);  in chunksz_to_bytes()
252 	unsigned int usable_sz = sz - min_chunk_size(h) + 1;  in bucket_idx()
253 	return 31 - __builtin_clz(usable_sz);  in bucket_idx()
262 	return (bytes / CHUNK_UNIT) >= h->end_chunk;  in size_too_big()
273 	for (c = right_chunk(h, 0); c < h->end_chunk; c = right_chunk(h, c)) {  in get_alloc_info()