linux-master/mm/percpu.c

1350 	int start_offset, offset_bits, region_size, region_bits;
1411 		offset_bits = chunk->start_offset / PCPU_MIN_ALLOC_SIZE;
1412 		bitmap_set(chunk->alloc_map, 0, offset_bits);
1414 		set_bit(offset_bits, chunk->bound_map);
1416 		chunk->chunk_md.first_free = offset_bits;
1418 		pcpu_block_update_hint_alloc(chunk, 0, offset_bits);
1423 		offset_bits = chunk->end_offset / PCPU_MIN_ALLOC_SIZE;
1425 			   pcpu_chunk_map_bits(chunk) - offset_bits,
1426 			   offset_bits);
1432 					     - offset_bits, offset_bits);