Corpus for write$9p:

Coverage	Program
456	pipe2$9p-fcntl$setstatus-write$9p
440	pipe2$9p-write$P9_RWSTAT-write$9p
349	pipe2$9p-write$P9_RWSTAT-write$9p
343	pipe2$9p-write$9p
339	pipe2$9p-fcntl$setstatus-write$9p
320	pipe2$9p-vmsplice-write$9p
279	pipe2$9p-write$P9_RREADLINK-write$9p
277	openat-pipe-mount$9p_fd-write$9p