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rules: clean up stale CD drive mounts after ejection 

Ejecting a CD with the hardware drive button only causes a change uevent, but
the device node stays around (just without a medium). Pick up these uevents and
mark the device as SYSTEMD_READY=0 on ejection, so that systemd stops the
device unit and consequently all mount units on it.

On media insertion, mark the device as SYSTEMD_READY=1 again.

https://bugs.freedesktop.org/show_bug.cgi?id=72206
https://bugzilla.opensuse.org/show_bug.cgi?id=909418
https://bugs.archlinux.org/task/42071
https://bugs.launchpad.net/bugs/1168742
This commit is contained in:
Martin Pitt 2015-01-28 13:57:47 +01:00 committed by Lennart Poettering
parent 06e9788888
commit 3b48ce4ec4
1 changed files with 5 additions and 0 deletions
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5
rules/60-cdrom_id.rules
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@ -15,6 +15,11 @@ ENV{DISK_EJECT_REQUEST}=="?*", RUN+="cdrom_id --eject-media $devnode", GOTO="cdr
# enable the receiving of media eject button events
IMPORT{program}="cdrom_id --lock-media $devnode"
# ejecting a CD does not remove the device node, so mark the systemd device
# unit as inactive while there is no medium; this automatically cleans up of
# stale mounts after ejecting
ENV{DISK_MEDIA_CHANGE}=="?*", ENV{ID_CDROM_MEDIA}!="?*", ENV{SYSTEMD_READY}="0"
KERNEL=="sr0", SYMLINK+="cdrom", OPTIONS+="link_priority=-100"
LABEL="cdrom_end"