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Let's clean up our tree a bit, and reduce invocations of the
thread-unsafe strerror() by replacing it with printf()'s %m specifier.
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Let's unify more code.
Also, rework the macro to accept a trailing semicolon, to make the code
prettier.
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extract_first() already skips trailing whitespace, hence no reason to
explicitly check for it.
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It's pretty untypical for our parsing functions to log on their own.
Clarify in the name that this one does.
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Also, make sure it follows the same scheme as log_syntax() does in its
behaviour.
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- Rely everywhere that we use abs() on the error code passed in anyway,
thus don't need to explicitly negate what we pass in
- Never attach synthetic error number information to log messages. Only
log about errors we *receive* with the error number we got there,
don't log any synthetic error, that don#t even propagate, but just eat
up.
- Be more careful with attaching exactly the error we get, instead of
errno or unrelated errors randomly.
- Fix one occasion where the error number and line number got swapped.
- Make sure we never tape over OOM issues, or inability to resolve
specifiers
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logind: avoid a dot before parenthesis
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Doc updates
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exit.target is now used for both system and user sessions,
so remove "on user service manager exit". Also reword that
paragraph: services will be killed before the manager exits,
even if they do not conflict with shutdown target, but we
recommend that they conflict with shutdown target so that
systemd schedules them to be stopped immediately when starting
to exit.
In the first paragraph, containers should be mentioned last,
and the more general systems first.
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systemd-logind[27]: System is rebooting. (Applied kernel updates.)
is changed to
systemd-logind[27]: System is rebooting (Applied kernel updates).
Users should not add a dot in the sentence in --message, i.e. the correct usage is now:
$ systemctl reboot --message "Applied kernel updates"
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This convention is almost universal in systemd man pages, and makes
it easier to visually parse the docs.
Also fix some markup along the way.
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Also reword some ungainly grammar constructs.
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[v2] bootchart: don't fail if "model name" is missing from cpuinfo
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base-fs: consider inability to create /root non-fatal
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Various fixes, primarily for nspawn, but other stuff too
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Fixes #1414
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fsck: start reboot.target irreversibly
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We already have the property writable, hence let's add a command to set
it.
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If we just return the value we got from log_level_from_string() on
failure we'll return -1, which is not a proper error code.
log_set_target_from_string() did get this right already, hence let's fix
this here too.
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sysfs below it
This way we can hide things like /sys/firmware or /sys/hypervisor from
the container, while keeping the device tree around.
While this is a security benefit in itself it also allows us to fix
issue #1277.
Previously we'd mount /sys before creating the user namespace, in order
to be able to mount /sys/fs/cgroup/* beneath it (which resides in it),
which we can only mount outside of the user namespace. To ensure that
the user namespace owns the network namespace we'd set up the network
namespace at the same time as the user namespace. Thus, we'd still see
the /sys/class/net/ from the originating network namespace, even though
we are in our own network namespace now. With this patch, /sys is
mounted before transitioning into the user namespace as tmpfs, so that
we can also mount /sys/fs/cgroup/* into it this early. The directories
such as /sys/class/ are then later added in from the real sysfs from
inside the network and user namespace so that they actually show whatis
available in it.
Fixes #1277
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Use get_proc_field and PROC_CPUINFO_MODEL to get the CPU type. Also don't
fail if it missing, instead restore the old behaviour and print "Unknown".
Fixes the following error seen with v225 on powerpc:
Unable to read module name from cpuinfo.
Error generating svg file: No such file or directory
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Define PROC_CPUINFO_MODEL to indicate the CPU model field in /proc/cpuinfo.
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All users of get_status_field() expect the field pattern to occur in
the beginning of a line, and the delimiter is ':'.
Hardcode this into the function, and also skip any whitespace before ':'
to support fields in files like /proc/cpuinfo. Add support for returning
the full field value (currently stops on first whitespace).
Rename the function so it's easier to ensure all callers switch to new
semantics.
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We didn#t actually pass ownership of /run to the UID in the container
since some releases, let's fix that.
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directories
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following parameter
We currently completely ignore the following parameter, but we really
should not, as that is actually the time to shut down on.
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tree-wide: use strempty() where possible
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Also add a Coccinell patch to detect such locations in the future.
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Systemctl and more
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Let's parse the command line the same way in our various tools.
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Otherwise, wall messages will not be generated for root.
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In most verbs it's fine to treat the arguments array being NULL is empty
array, hence do so.
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Also adds a couple of "return" statements, where they are missing.
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Sometimes we have to connect to the system manager directly (early boot,
initrd, late boot, ...), sometimes through the system bus (unprivileged,
remote, logind, ...). Instead of guessing in advance, which kind of
connection we require (and sometimes guessing incorrectly), let's make
sure each time we need bus connection we request the right bus
explicitly.
This way, we set up exactly the bus connections require, never guess
incorrectly, and do so only immediately when necessary.
As effect this reworks avoid_bus() into install_client_side(), since
that's all it determines now: whether to install unit files client-side
or server-side (i.e. in PID 1).
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located in
We place the processes we fork off in the cgroup anyway, and we probably
shouldn't be able to get that far if we couldn't set up the slice due to
resource problems or unmet conditions. Hence upgrade the dependency
between units and the slices they are located in from Wants= to
Requires=.
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