Journal files have space allocated in 8MiB-aligned increments. This
can add up to substantial wasted space as many archived journals
accumulate without using all the allocated space. Let's truncate
journal files to their actually used size when archiving them to
reclaim this unused space.
As the mmap cache is not thread-safe, we can't call
journal_file_move_to_object() from the offline thread. Instead,
we use journal_file_read_object() which doesn't rely on the mmap
cache.
Due to the fact that systemd-journal-flush.service has
"Requires=systemd-journald.service", this service is stopped too when journald
is requested to do so.
However stopping systemd-journal-flush.service implies that journald
relinquishes /var hence implicitly switching back to the volatile storage
mode and removing /run/systemd/journal/flushed.
If journald is started afterwards, it will run in volatile storage mode
regardless of the value of 'Storage=' as it believes now that /var is not yet
ready (because the flushed flag is missing).
Because this flag is mainly an indication for journald that the initialization
of /var/log/journal (during the boot process) has been done,
systemd-journal-flush.service shouldn't be tied to the state of journald itself
but to the state of /var/log/journal, hence to the state of the system.
This commit adds a function which converts a bus message containing the
environment variables to a JSON object and uses this function to support
JSON formatted output for the "systemctl show-environment" command.
Fixes#21348
This rule has been shipped in Fedora's gnome-bluetooth package for 10
years and is used by the gnome-settings-daemon rfkill plugin (used by
gnome-bluetooth, gnome-shell, and gnome-control-center) to monitor
and change software rfkill switch settings.
The documentation of sd_bus_get_timeout wrongfully states that the returned time-value is relative. In fact, it is an absolute value which is based of CLOCK_MONOTONIC. This change corrects that documentation.
1) don't ignore stack-allocated variables, since they may hide
heap-allocated stuff (compound types)
2) check if there's a return between the variable declaration and its
initialization; if so, treat the variable as uninitialized
3) introduction of 2) increased the query runtime exponentially, so
introduce some optimizations to bring it back to some reasonable
values
otherwise we end up with more than one job with the same identifier in
one run, causing some of them to get cancelled unexpectedly.
A quick follow-up to 85bd394df5.
Daan De Meyer
Yu Watanabe
Zbigniew Jędrzejewski-Szmek
Pavel Březina
Franck Bui
Joris Hartog
Bastien Nocera
Urs Ritzmann
Luca Boccassi
Frantisek Sumsal
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