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Previously we were testing whether /sys/fs/cgroup/systemd/ was a mount
point. This might be problematic however, when the cgroup trees are bind
mounted into a container from the host (which should be absolutely
valid), which might create the impression that the container was running
systemd, but only the host actually is.
Replace this by a check for the existance of the directory
/run/systemd/system/, which should work unconditionally, since /run can
never be a bind mount but *must* be a tmpfs on systemd systems, which is
flushed at boots. This means that data in /run always reflects
information about the current boot, and only of the local container,
which makes it the perfect choice for a check like this.
(As side effect this is nice to Ubuntu people who now use logind with
the systemd cgroup hierarchy, where the old sd_booted() check misdetects
systemd, even though they still run legacy Upstart.)
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First, rename root-fs.target to initrd-root-fs.target to clarify its usage.
Mount units with "x-initrd-rootfs.mount" are now ordered before
initrd-root-fs.target. As we sometimes construct /sysroot mounts in
/etc/fstab in the initrd, we want these to be mounted before the
initrd-root-fs.target is active.
initrd.target can be the default target in the initrd.
(normal startup)
:
:
v
basic.target
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______________________/|
/ |
| sysroot.mount
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| v
| initrd-root-fs.target
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| v
| initrd-parse-etc.service
(custom initrd services) |
| v
| (sysroot-usr.mount and
| various mounts marked
| with fstab option
| x-initrd.mount)
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| v
| initrd-fs.target
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\______________________ |
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v
initrd.target
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v
initrd-cleanup.service
isolates to
initrd-switch-root.target
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v
______________________/|
/ |
| initrd-udevadm-cleanup-db.service
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(custom initrd services) |
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\______________________ |
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v
initrd-switch-root.target
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v
initrd-switch-root.service
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v
switch-root
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Back from old times when we developed systemd on non-systemd hosts we
still mounted the missing directories such as the cgroup stuff even when
running with a PID != 1. There's no point for that anymore, so let's
just do that if we are actually PID 1, and never otherwise.
https://bugs.freedesktop.org/show_bug.cgi?id=62354
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mbiebl> src/tmpfiles/tmpfiles.c:221:13: error: ‘MAX_HANDLE_SZ’
undeclared (first use in this function)
Fixup for 427b47c4abaf4b5.
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!= operator always returns something nonnegative, so the
error condition was not caught.
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journalctl -u unit is not very useful, because it doesn't show
systemd messages about starting, stopping, coredumps, etc,
like systemctl status unit does. Make it show the same
information using the same rules.
If somebody really want to see just messages from by the unit,
it is easy enough to use _SYSTEMD_UNIT=...
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After that functions which add matches, show_journal_by_unit
and show_journal_by_user_unit, become nearly identical, so
I merged them into one function.
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There are very few differences in the implementations of the kill method in the
unit types that have one. Let's unify them.
This does not yet unify unit_kill() with unit_kill_context().
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Just like mempcpy() is almost identical to memcpy() except the useful
return value, so is the relation of mempset() to memset().
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Instead of using local-fs*.target in the initrd, use root-fs.target for
sysroot.mount and initrd-fs.target for /sysroot/usr and friends.
Using local-fs.target would mean to carry over the activated
local-fs.target to the isolated initrd-switch-root.target and thus in
the real root. Having local-fs.target already active after
deserialization causes ordering problems with the real root services and
targets.
We better isolate to targets for initrd-switch-root.target, which are
only available in the initrd.
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This should help readers of the man or HTML pages know if the documentation
is out of date. An alternative to use a date generated from 'git log' was
considered, but since we try to keep user visible documentation up to date,
showing the project version should be enough.
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ignored
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The running jobs animation is supposed to hide itself when jobs are
progressing sufficiently fast.
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We should not try to get information about mount unit from fragment
if the unit was created because of /proc/self/mountinfo event.
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BogdanR> I think it's cool it supports SMACK and that it encourages
them to use a propper mount point for smackfs but I don't
think it's cool that it's printing on the screen even when
I parse quiet to the kernel that "SMACK support is not
enabled ...".
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It is only needed in files designed to be usable in standalone
compilation. In those files the #ifdefinery is indented. When
compiling in-tree, GNU_SOURCE is always defined, so remove one
definition.
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system inherits the kernel default
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Let's update bootchar to share the coding style a bit more with the rest
of the package.
- Some tabs/spaces fixes
- add #pragma to header
- split up header so that we have a 1:1 relation between .c and .h files
like everywhere else
- Prefix user command line arguments/configuration settings with "arg_".
- other coding style fixes
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The udevadm utility is needed during early boot, so move it to
rootbindir to support split-/usr configurations.
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<Lekensteyn> The 198 announcement mentions
"/etc/systemd/systemd/foobar.service.d/*.conf", is that a
typo? I only have a /etc/systemd/system/. Is there a
manpage describing this new feature?
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I forgot to commit the layout file, because it was gitignored.
Fixed now.
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The result is ugly enough, I hope, to motivate someone with
design skills to fix it.
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Update systemd-analyze to follow the coding style of the other tools
more closely. Also, update the CODING_STYLE to document this for future
additions.
Changes:
- Always use usec_t for time units, so that we always use the same types
everywhere, and format times the same way as everywhere else.
- Add "static" to global variables
- Make sure we can always distuingish OOM and other errors: ensure we
always return useful error codes from all functions.
- Always free unit_times array
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Priority 0 is acceptable (it's LOG_EMERG).
BTW, I'm not sure why we allow priorities up to 999, but I'm leaving
this be for now.
http://lists.freedesktop.org/archives/systemd-devel/2013-March/009510.html
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Commit 984a2be4 failed to adjust this caller of status_printf().
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No need for strdup. We can slice the path in place if we always undo it
afterwards.
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The argument given to the __attribute__((cleanup)) functions is the
address of the variable that's going out of scope. It cannot be NULL.
The "if (!s)" check in set_freep() is pointless.
Perhaps "if (!*s)" was intented. But that's pointless too, because
set_free()/set_free_free() are OK to call with a NULL argument (just
like free()).
Setting "*s = NULL" is pointless, because the variable that s points
to is about to go out of scope.
The same holds for strv_freep().
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Improve test coverage a bit with tests for
close_many
strappend (to cover all ways through strnappend)
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In order to maintain compatibility with older initrds which do not have
AllowIsolate=yes set for their target units, fallback to JOB_REPLACE if
JOB_ISOLATE doesn't work, but complain about it.
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Make sure the pager does not have to buffer an unbounded number of log
messages, by default.
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This reverts commit 0ea9530d401827e299c6e04a433e69a7a2a89d80.
attribute(cleanup) can only be used inside functions (*of, sysfd
are leaked).
Cleanup functions are only called once when exiting scope (*f
is leaked twice).
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https://bugzilla.redhat.com/show_bug.cgi?id=868383
Primary reason to do this is to ensure "-e" works as intended, and is
not ignored because the user set his own LESS variable.
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