proto: struct thread *td, struct fhstat_args *uap
parms: td, uap
errors:
  - ENOTDIR
  - ENAMETOOLONG
  - ENOENT
  - EACCES
  - EPERM
  - ELOOP
  - EISDIR
  - EROFS
  - ENFILE
  - EMLINK
  - ENXIO
  - EINTR
  - EOPNOTSUPP
  - EWOULDBLOCK
  - ENOSPC
  - EDQUOT
  - EIO
  - ETXTBSY
  - EFAULT
  - EEXIST
  - EBADF
  - ENOTDIR
  - ECAPMODE
  - ENOTCAPABLE
  - EINVAL
  - ESTALE
  - EOVERFLOW
profiles:
  - fs
