asterinas/book/src/kernel/linux-compatibility/syscall-feature-coverage/file-systems-and-mount-control/fully_supported.scml

// Get filesystem statistics
statfs(path, buf);
fstatfs(fd, buf);

// Commit filesystem caches to disk
sync();

// Change root directory
chroot(path);

// Remove a watch from an inotify instance
inotify_rm_watch(fd, wd);