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man: clarify unit ordering language

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This commit is contained in:
Ian Kelling 2016-02-21 18:21:50 -08:00
parent 1f210bdbe6
commit 21b0be6bcf
1 changed files with 11 additions and 8 deletions
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19
man/systemd.unit.xml
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@ -558,14 +558,17 @@
between them are shut down, the inverse of the start-up order
is applied. i.e. if a unit is configured with
<varname>After=</varname> on another unit, the former is
stopped before the latter if both are shut down. If one unit
with an ordering dependency on another unit is shut down while
the latter is started up, the shut down is ordered before the
start-up regardless of whether the ordering dependency is
actually of type <varname>After=</varname> or
<varname>Before=</varname>. If two units have no ordering
dependencies between them, they are shut down or started up
simultaneously, and no ordering takes place.
stopped before the latter if both are shut down. Given two units
with any ordering dependency between them, if one unit is shut
down and the other is started up, the shutdown is ordered
before the start-up. It doesn't matter if the ordering
dependency is <varname>After=</varname> or
<varname>Before=</varname>. It also doesn't matter which of the
two is shut down, as long as one is shut down and the other is
started up. The shutdown is ordered before the start-up in all
cases. If two units have no ordering dependencies between them,
they are shut down or started up simultaneously, and no ordering
takes place.
</para></listitem>
</varlistentry>