Corpus for write$P9_RSTAT:

Coverage	Program
666	pipe2$9p-write$P9_RATTACH-vmsplice-syz_io_uring_setup-close-write$P9_RSTAT
574	perf_event_open-pipe2$9p-openat$sysfs-sendfile-write$P9_RSTAT
233	close_range-pipe2$9p-pipe2-write$P9_RSTAT-tee
191	ioctl$AUTOFS_IOC_SETTIMEOUT-perf_event_open-pipe2$9p-write$P9_RFSYNC-write$P9_RSTAT
168	perf_event_open-pipe2$9p-write$P9_RSTAT-write$P9_RSTAT