pub fn base_mountpoint_mount_ids() -> Vec<(Vec<u8>, u64)>Expand description
Each of BASE_MOUNTPOINTS
that the calling thread can open, as the kernel escapes it in mountinfo,
with the mount ID of a descriptor held on it: rule 2’s proof of
ContainerMountTable::select. The base mountpoints hold no byte the kernel
escapes (space, tab, newline or backslash), so each is its own escaped form.