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blkid error handling
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coredumpctl: implement --since/--until (-S/-U) for info/list verbs
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Revert "core: simplify cg_[all_]unified()" and more.
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Implement --since/--until (-S/-U) in the same fashion as journalctl.
This lets the user filter the results a bit so it would be easier to
find relevant info in case there were many core dumps.
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Let's just check the unified level, directly. There's really no value in
wrapping cg_unified_controllers() with this, i.e. potentially do string
comparison when there's no reason to.
Also, this makes the clal more alike cg_hybrid_unified().
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We usually put the noun first, the verb (i.e. method) secont, for
example in cg_unified_flush(), let's follow the logic here...
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cg_unified() is a bit generic a name, let's make clear that it checks
whether a specified controller is in unified mode.
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We use our cgroup APIs in various contexts, including from our libraries
sd-login, sd-bus. As we don#t control those environments we can't rely
that the unified cgroup setup logic succeeds, and hence really shouldn't
assert on it.
This more or less reverts 415fc41ceaeada2e32639f24f134b1c248b9e43f.
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Just a minor optimization.
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Systemd controller on unified v2
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Udev log revert
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The cg_pid_get_path_shifted() is called twice during
server_dispatch_message(). We can get rid of the second by passing the
path to dispatch_message_real().
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This reverts commit c22569eeeafa94cf510267071f5b75c4ab714e09.
Let's revert this for now, since it apparently doesn't fix the problem
at hand.
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This isn't terribly useful because /sys/fs/cgroup will usually be mounted.
But it at least allows checking if the values make sense in this case.
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We should mount the hybrid hierarchy if the user disabled the unified
hierarchy on the kernel command line.
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/sys/fs/cgroups/unified on unified
If we encounter an error in proc cmdline parsing, just treat that as permanent,
i.e. the same as if the option was not specified. Realistically, it is better
to use the same condition for all related mounts, then to have e.g.
/sys/fs/cgroup mounted and /sys/fs/cgroup/unified not. If we find something is
mounted and base our answer on that, cache that result too.
Fix the conditions so that if "unified" is used, make sure any "hybrid" mounts
are not mounted.
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We need this to gracefully support older or strangely configured kernels.
v2:
- do not install a callback handler, just embed the right conditions into
cg_is_*_wanted()
v3:
- fix bug in cg_is_legacy_wanted()
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Less typing and doesn't make the table so incredibly wide.
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We not looking for hashmap_put return error code.
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fd45e52 sets
n to NULL which leads to crash.
fixes: #5418
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test-env-util: fix typo leading to memleak
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As per commit 25e773e "udev: switch to systemd logging functions"
Now log_set_max_level() in udev_new() overwites system wide log level.
Propagate the udev.conf setting to log_set_max_level()
only if udev_new() is called from within udevd or one of its helpers.
Introduce a UDEV_PROPAGATE_LOG macro that we set with -D on
the gcc command line for all udev binaries we build, but not
for any others. The log_set_max_level() call is guarded by an
ifdef check for that macro, so that it only effects the various
udev binaries.
closes: #4525
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From: #5393
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The code that calls this function doesn't care, but it looks bad.
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This reverts commit 18f71a3c8174774c5386c4aba94d54f3b5c36a84.
According to @keszybz we don't need this anymore, hence drop it:
https://github.com/systemd/systemd/pull/5131/commits/18f71a3c8174774c5386c4aba94d54f3b5c36a84#r102232368
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Fixes: #5401
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If the snippet aleady exists, don't do anything, as the file was already
installed then.
(This also reworks the code to create the file atomically)
Fixes: #5396
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Also, make sure to reuse temporary file handling used elsewhere.
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If our netlink input buffer overruns the kernel will send us ENOBUFS on
the next recvmsg(). Don't consider this a complete failure resulting in
closing of the netlink socket. Instead, simply continue (after debug
logging).
Of course, ideally we'd have a better strategy for this, and would have
a way to resync if this happens (as well as a scheme for cancelling all
ongoing asynchronous transactions), but for now let's at least not choke
fatally, and simply accept that we lost some messages and continue.
Note that if we lose messages when synchronously waiting for an
operation to complete, we'll still propagate the ENOBUFS up, to make the
individual transaction fail.
See: #5398
(This bug does not properly fix the issue, hence we should leave the bug
open.)
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Fixes: #5408
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IN_SET(SIGCONT, SIGKILL) will always evaluate to false.
The signal needs to be included as the first argument.
Fixup for 26f417d3e8dd2522adfdc4c8fed4c36fa40f48fc.
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Fixes #5405.
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Partially fixes #5405.
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Just to clarify, that these options expect arguments, following our
usual style.
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Environment generators
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Fixes #4685.
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Clarifications to make coverity happy
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This is only the tip of the iceberg. It would be great to test all kinds of nesting, handling
of invalid syntax, etc., but I'm leaving that for later.
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Sometimes it's useful to provide a default value during an environment
expansion, if the environment variable isn't already set.
For instance $XDG_DATA_DIRS is suppose to default to:
/usr/local/share/:/usr/share/
if it's not yet set. That means callers wishing to augment
XDG_DATA_DIRS need to manually add those two values.
This commit changes replace_env to support the following shell
compatible default value syntax:
XDG_DATA_DIRS=/foo:${XDG_DATA_DIRS:-/usr/local/share/:/usr/share}
Likewise, it's useful to provide an alternate value during an
environment expansion, if the environment variable isn't already set.
For instance, $LD_LIBRARY_PATH will inadvertently search the current
working directory if it starts or ends with a colon, so the following
is usually wrong:
LD_LIBRARY_PATH=/foo/lib:${LD_LIBRARY_PATH}
To address that, this changes replace_env to support the following
shell compatible alternate value syntax:
LD_LIBRARY_PATH=/foo/lib${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
[zj: gate the new syntax under REPLACE_ENV_ALLOW_EXTENDED switch, so
existing callers are not modified.]
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It's like replace_env, but lets you pass in a substring.
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In the future we might want to allow additional syntax (for example
"unset VAR". But let's check that the data we're getting does not contain
anything unexpected.
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(Only in environment.d files.)
We have only basic compatibility with shell syntax, but specifying variables
without using braces is probably more common, and I think a lot of people would
be surprised if this didn't work.
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