Instead of having individual counters n_serializing and n_deserializing
have a single one n_reloading, which should be sufficient.
Set n_reloading when we are about to go down for reexecution to avoid
cgroup trimming when we free the units for reexecution.
In some cases systemd forgets to start enabled services, e.g. in this scenario:
1. The job "sendmail.service/start" is installed.
2. Before systemd proceeds with this job, a process requests a reload of
sendmail. The job "sendmail.service/reload" is enqueued.
3. The original job is silently discarded. The service is not started.
The reload job proceeds by doing nothing.
The fix is to allow merging transaction jobs with the active job.
With the fix the resulting merged job "sendmail.service/reload-or-start" is
installed and the service works as expected.
https://bugzilla.redhat.com/show_bug.cgi?id=633774
We simply keep open copies of the dbus connections across the
reexecution and close them as last step of it. A client can thus simply
wait until its connection is dropped to know when the reexecution is
finished.
https://bugzilla.redhat.com/show_bug.cgi?id=698198
Instead of the /dev/.run trick we have currently implemented, we decided
to move the early-boot runtime dir to /run.
An existing /var/run directory is bind-mounted to /run. If /var/run is
already a symlink, no action is taken.
An existing /var/lock directory is bind-mounted to /run/lock.
If /var/lock is already a symlink, no action is taken.
To implement the directory vs. symlink logic, we have a:
ConditionPathIsDirectory=
now, which is used in the mount units.
Skipped mount unit in case of symlink:
$ systemctl status var-run.mount
var-run.mount - Runtime Directory
Loaded: loaded (/lib/systemd/system/var-run.mount)
Active: inactive (dead)
start condition failed at Fri, 25 Mar 2011 04:51:41 +0100; 6min ago
Where: /var/run
What: /run
CGroup: name=systemd:/system/var-run.mount
The systemd rpm needs to make sure to add something like:
%pre
mkdir -p -m0755 /run >/dev/null 2>&1 || :
or it needs to be added to filesystem.rpm.
Udev -git already uses /run if that exists, and is writable at bootup.
Otherwise it falls back to the current /dev/.udev.
Dracut and plymouth need to be adopted to switch from /dev/.run to run
too.
Cheers,
Kay
Now that we have /dev/.run there's no need to use abstract namespace
sockets. So, let's move things to /dev/.run, to make things more easily
discoverable and improve compat with chroot() and fs namespacing.
This practically reverses 23e1e0c4a3.
This makes it easier to timeout individual jobs so that this timeout can
be relied on, since blocked dependencies will not influence the timeout.
Lennart Poettering