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Support for net_cls.class_id through the NetClass= configuration directive
has been added in v227 in preparation for a per-unit packet filter mechanism.
However, it turns out the kernel people have decided to deprecate the net_cls
and net_prio controllers in v2. Tejun provides a comprehensive justification
for this in his commit, which has landed during the merge window for kernel
v4.5:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bd1060a1d671
As we're aiming for full support for the v2 cgroup hierarchy, we can no
longer support this feature. Userspace tool such as nftables are moving over
to setting rules that are specific to the full cgroup path of a task, which
obsoletes these controllers anyway.
This commit removes support for tweaking details in the net_cls controller,
but keeps the NetClass= directive around for legacy compatibility reasons.
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Remove some old cruft
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This should be handled fine now by .dir-locals.el, so need to carry that
stuff in every file.
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Fix for #2467
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As suggested in: https://github.com/systemd/systemd/pull/2542#issuecomment-181877820
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unit, not just services
This moves the StartLimitBurst=, StartLimitInterval=, StartLimitAction=, RebootArgument= from the [Service] section
into the [Unit] section of unit files, and thus support it in all unit types, not just in services.
This way we can enforce the start limit much earlier, in particular before testing the unit conditions, so that
repeated start-up failure due to failed conditions is also considered for the start limit logic.
For compatibility the four options may also be configured in the [Service] section still, but we only document them in
their new section [Unit].
This also renamed the socket unit failure code "service-failed-permanent" into "service-start-limit-hit" to express
more clearly what it is about, after all it's only triggered through the start limit being hit.
Finally, the code in busname_trigger_notify() and socket_trigger_notify() is altered to become more alike.
Fixes: #2467
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time-util: make timespec_load_nsec() static
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The timespec_load_nsec() function has no callers outside of the
time-util.c, so we can make it static.
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After all, the masked unit file error might be returned when enqueuing a unit that is not masked but requires a masked
unit. In this case it should really be clear which unit is meant here.
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This commit changes the mapping of the BUS_ERROR_UNIT_MASKED error to ESHUTDOWN. This error is used whenever the
transaction engine is asked to operate on a masked unit. ESHUTDOWN is what is used for the similar case when the unit
file enable/disable logic hits a masked unit file, hence is a natural candidate to be used here too.
Background: before this patch both "job type not applicable" and "unit masked" where mapped to EBADR, which
transaction_add_job_and_dependencies() then checked for. It actually wanted to check exclusively for the former error
condition, not the latter but due to the same mapping this failed to work.
This patch semi-undoes an accidental change made in caffa4ef700fdd0eadd6c0b2ef9925611672a1bc, however restores the
error number to ESHUTDOWN instead of the original ENOSYS (for the reasons indicated above).
To make this easier to grok for the future, I added comments to explaining which error conditions are checked for.
Fixes: #2315
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path_id: reintroduce by-path links for virtio block devices
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Enumeration of virtio buses is global and hence
non-deterministic. However, we are guaranteed there is never going to be
more than one virtio bus per parent PCI device. While populating
ID_PATH we simply skip virtio part of the syspath and we extend the path
using the sysname of the parent PCI device.
With this patch udev creates following by-path links for virtio-blk
device /dev/vda which contains two partitions.
ls -l /dev/disk/by-path/
total 0
lrwxrwxrwx 1 root root 9 Feb 9 10:47 virtio-pci-0000:00:05.0 -> ../../vda
lrwxrwxrwx 1 root root 10 Feb 9 10:47 virtio-pci-0000:00:05.0-part1 -> ../../vda1
lrwxrwxrwx 1 root root 10 Feb 9 10:47 virtio-pci-0000:00:05.0-part2 -> ../../vda2
See:
http://lists.linuxfoundation.org/pipermail/virtualization/2015-August/030328.html
Fixes #2501
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Remove the check that triggers rotation of the journal file when the arriving log entry had a monotonic timestamp smaller that the previous log entry. This check causes unnecessary rotations when journal-remote was receiving from multiple senders, therefore monotonicity can not be guaranteed. Also, it does not offer any useful functionality for systemd-journald.
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time-util: cleanups
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time-util: merge format_timestamp_internal() and format_timestamp_int…
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The dual_timestamp_from_realtime(), dual_timestamp_from_monotonic()
and dual_timestamp_from_boottime_or_monotonic() shares the same
code for comparison given ts with delta. Let's move it to the
separate inline function to prevent code duplication.
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The time_util.c provides format_timestamp_internal() and
format_timestamp_internal_us() functions for a timestamp formating. Both
functions are very similar and differ only in formats handling.
We can add additional boolean parameter to the format_timestamp_internal()
function which will represent is a format for us timestamp or not.
This allows us to get rid of format_timestamp_internal_us() that is prevent
code duplication.
We can remove format_timestamp_internal_us() safely, because it is static and
has no users outside of the time_util.c. New fourth parameter will be passed
inside of the format_timestamp(), format_timestamp_us() and etc, functions,
but the public API is not changed.
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random-seed: provide nicer error message when unable to open file
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treewide: fix typos and spacing
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journal: miscellaneous cleanups
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If /var is read-only, and the seed file does not exist, we would print
a misleading error message for ENOENT. Print both messages instead, to
make it easy to diagonose.
Also, treat the cases of missing seed file the same as empty seed file
and exit successfully. Initialize the return code properly.
Fixes https://github.com/systemd/systemd/issues/2530,
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=813599.
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journal-remote: decrease microhttpd memory limit
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time-util: use dual_timestamp_get()
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The time-util.c provides dual_timestamp_get() function for getting
realtime and monotonic timestamps. Let's use it instead of direct
realtime/monotonic calculation.
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Combine journal catalog entries with the same id
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None of the callers take advantage of this parameter, it's always NULL,
this is just a private helper function to simplify the call sites so
drop the template parameter altogether. If a caller emerges later who
needs it, it can be restored.
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One function per test. Remove shared state between tests.
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Instead of discarding duplicate catalog entries, we now combine
them. This allows software or admins to add or override catalog
headers, or add additional text to the catalog message.
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Introduces mmap_try_harder()
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Functions dereferencing these members should assert their non-NULL state.
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Just some additional asserts in functions dereferencing f->header.
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Set the MHD_OPTION_CONNECTION_MEMORY_LIMIT to 128KB. The precious value was DATA_SIZE_MAX, which was defined as 1024*1024*768. This caused journal-remote to allocate 756MB for each journal-upload connection, thus exhausting the available memory.
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Fixes: #2361
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events correctly
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Fixes: #2514
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When we enter the running state we should forget about any control processes, in all cases, and not just when hit a
reload timeout...
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Let's use bitfields for our booleans, and don't try to apply binary OR or addition on them, because that's weird and we
should instead use logical OR only.
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We really shouldn't fail silently, but print a log message about these errors. Also make sure to attach error codes to
all log messages where that makes sense.
(While we are at it, add a couple of (void) casts to functions where we knowingly ignore return values.)
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This makes sure we never run two control processes at the same time, we cannot keep track off.
This introduces a slight change of behaviour but cleans up the definition of ExecStop= and ExecStopPost=. The former is
now invoked only if the service managed to start-up correctly. The latter is called even if start-up failed half-way.
Thus, ExecStopPost= may be used as clean-up step for both successful and failed start-up attempts, but ExecStop='s
purpose is clearly defined as being responsible for shutting down the service and nothing else.
The precise behaviour of this was not documented yet. This commit adds the necessary docs.
Fixes: #1254
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they do
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Let's make sure we don't choke if blkid_probe_lookup_value() returns a NULL string.
Also, make sur we propagate the correct error when blkid_probe_lookup_value() fails.
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This adds a new switch --as-pid2, which allows running commands as PID 2, while a stub init process is run as PID 1.
This is useful in order to run arbitrary commands in a container, as PID1's semantics are different from all other
processes regarding reaping of unknown children or signal handling.
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For use in timesyncd we already defined a compile-time "epoch" value, which is based on the mtime of the NEWS file, and
specifies a point in time we know lies in the past at runtime. timesyncd uses this to filter out nonsensical timestamp
file data, and bump the system clock to a time that is after the build time of systemd. This patch adds similar bumping
code to earliest PID 1 initialization, so that the system never continues operation with a clock that is in the 1970ies
or even 1930s.
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