COMPRESS_HEADER_SIZE
cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
int dst_size = src_size - PAGE_SIZE - COMPRESS_HEADER_SIZE;
max_len = COMPRESS_HEADER_SIZE + cc->clen;
max_len = PAGE_SIZE * (cc->cluster_size - 1) - COMPRESS_HEADER_SIZE;
new_nr_cpages = DIV_ROUND_UP(cc->clen + COMPRESS_HEADER_SIZE, PAGE_SIZE);
(cc->clen + COMPRESS_HEADER_SIZE));
if (dic->clen > PAGE_SIZE * dic->nr_cpages - COMPRESS_HEADER_SIZE) {