TMPFS_DIRCOOKIE_EOF
uio->uio_offset = TMPFS_DIRCOOKIE_EOF;
if (startcookie == TMPFS_DIRCOOKIE_EOF)
uio->uio_offset = TMPFS_DIRCOOKIE_EOF;
uio->uio_offset = TMPFS_DIRCOOKIE_EOF;
(error == 0 && uio->uio_offset == TMPFS_DIRCOOKIE_EOF);
KKASSERT(off != TMPFS_DIRCOOKIE_EOF);
off = TMPFS_DIRCOOKIE_EOF;