ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
int path_is_mount_point(const char *path, bool allow_symlink);
+int path_is_read_only_fs(const char *path);
bool is_device_path(const char *path);
bool tty_is_vc(const char *tty);
bool tty_is_vc_resolve(const char *tty);
+bool tty_is_console(const char *tty);
int vtnr_from_tty(const char *tty);
const char *default_term_for_tty(const char *tty);