zstd_compress
.compress = zstd_compress,
.compress = zstd_compress,
static ssize_t zstd_compress(struct perf_session *session, struct mmap *map,
ssize_t compressed = zstd_compress(aio->rec->session, NULL, aio->data + aio->size,
ssize_t compressed = zstd_compress(rec->session, map, map->data,