Features:
+* there should be path_hash_ops and we should use it in tmpfiles' hashmap object to deal with identical but differently spelt paths
+
* rework pid watching logic, allow any number of units watch the same pid
* be stricter with fds we receive for the fdstore: close them asynchronously
* add bpf-based implementation of devices cgroup controller logic for compat with cgroupsv2 as supported by newest kernel
+* introduce sd_id128_get_boot_app_specific() which is like
+ sd_id128_get_machine_app_specific(). After all on long-running systems both
+ IDs have similar properties.
+
+* emulate properties of the root cgroup on controllers that don't support such
+ properties natively on cpu/io/memory, the way we already do it for
+ "pids". Also, add the same logic to cgtop.
+
+* set TasksAccounting=1 on the root slice if we are running on the root cgroup,
+ and similar for the others, as soon as we emulate them properly. After all,
+ Linux keeps these system-wide stats anyway, and it costs nothing to expose
+ them.
+
* sd-bus: add vtable flag, that may be used to request client creds implicitly
and asynchronously before dispatching the operation
"systemd-gdb" for attaching to the start-up of any system service in its
natural habitat.
-* replace all canonicalize_file_name() invocations by chase_symlinks(), in
- particulr those where a rootdir is relevant.
-
* maybe introduce gpt auto discovery for /var/tmp?
* maybe add gpt-partition-based user management: each user gets his own