3 Commits

Author	SHA1	Message	Date
Peter Rajnoha	c87e5a308a	filter-usable: filter out blocked and suspended devices firmly when scanning for lvmetad ... We can't hang on blocked or suspended devices when the scan is done for lvmetad update - when the device gets unblocked or resumed, there's always CHANGE event generated which will fire the udev rule to run extra pvscan --cache for that device which makes sure that lvmetad is up-to-date.	2014-10-08 11:03:08 +02:00
Peter Rajnoha	a976226e81	cleanup: remove compiler warning about possible uninitialized variable use ... filters/filter-usable.c:22: warning: "ucp.check_..." may be used uninitialized in this function This can't actually be hit in real, but let's clean this up for the compiler to be happy again.	2014-10-02 13:21:24 +02:00
Peter Rajnoha	8a843d0d97	filters: add "usable device" filter ... Usable device filter is responsible for filtering out unusable DM devices. The filter has 3 modes of operation: - FILTER_MODE_NO_LVMETAD: When this mode is used, we check DM device usability by looking: - whether device is empty - whether device is blocked - whether device is suspended (only on devices/ignore_suspended_devices=1) - whether device uses an error target - whether device name/uuid is reserved - FILTER_MODE_PRE_LVMETAD: When this mode is used, we check DM device usability by looking: - whether device is empty - whether device is suspended (only on devices/ignore_suspended_devices=1) - whether device uses an error target - whether device name/uuid is reserved - FILTER_MODE_POST_LVMETAD: When this mode is used, we check DM device usability by looking: - whether device is blocked - whether device is suspended (only on devices/ignore_suspended_devices=1) These modes will be used by subsequent patch to create different instances of this filter, depending on lvmetad use.	2014-09-30 13:11:58 +02:00