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authorFranck Bui <fbui@suse.com>2015-11-03 18:25:46 +0100
committerFranck Bui <fbui@suse.com>2015-11-22 15:06:14 +0100
commite9fd88f2e9a2effb7bcc1541a66263a5f97ce0a6 (patch)
tree9aac222de2114f34ef2c567daba804fbfe5ffbe7 /man/systemd-backlight@.service.xml
parent000a996dc46c187f803b67b0b0d51ad4d0bc1658 (diff)
core: allow 'SetUnitProperties()' to run on inactive units too
'set-property' has been primarly designed to change some properties of *active* units. However it can easily work on inactive units as well. In that case changes are only saved in a drop-in for futur uses and changes will be effective when unit will be started. Actually it already works on inactive units but that was not documented and not fully supported. Indeed the inactive units had to be known by the manager otherwise it was reported as not loaded: $ systemctl status my-test.service * my-test.service - My Testing Unit Loaded: loaded (/etc/systemd/system/my-test.service; static; vendor preset: disabled) Drop-In: /etc/systemd/system/my-test.service.d Active: inactive (dead) $ systemctl set-property my-test.service MemoryLimit=1000000 Failed to set unit properties on my-test.service: Unit my-test.service is not loaded. [ Note: that the unit load state reported by the 'status' command might be confusing since it claimed the unit as loaded but 'set-property' reported the contrary. ] One can possibily workaround this by making the unit a dependency of another active unit so the manager will keep it around: $ systemctl add-wants multi-user.target my-test.service Created symlink from /etc/systemd/system/multi-user.target.wants/my-test.service to /etc/systemd/system/my-test.service. $ systemctl set-property my-test.service MemoryLimit=1000000 $ systemctl status my-test.service * my-test.service - My Testing Unit Loaded: loaded (/etc/systemd/system/my-test.service; enabled; vendor preset: disabled) Drop-In: /etc/systemd/system/my-test.service.d `-50-MemoryLimit.conf Active: inactive (dead) This patch simply forces 'SetUnitProperties()' to load the unit if it's not already the case. It also documents the fact that 'set-property' can be used on inactive units.
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