Corpus for write$P9_RSTAT:

Coverage	Program
1587	syz_open_procfs-write$P9_RSTAT
650	perf_event_open-pipe2$9p-syz_io_uring_setup-close-write$P9_RSTAT-shmget$private
639	perf_event_open-pipe2$9p-ioctl$int_in-syz_io_uring_setup-close-write$P9_RSTAT
490	pipe2$9p-write$P9_RSTAT-write$P9_RSTAT-readv
368	pipe2$9p-write$P9_RREADDIR-write$P9_RSTAT
281	syz_open_procfs-write$P9_RSTAT