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40 lines
1.6 KiB
Plaintext
40 lines
1.6 KiB
Plaintext
# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
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#
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# This file is part of LVM2.
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# Udev rules for LVM.
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#
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# Scan all block devices having a PV label for LVM metadata.
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# Store this information in LVMetaD (the LVM metadata daemon) and maintain LVM
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# metadata state for improved performance by avoiding further scans while
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# running subsequent LVM commands or while using lvm2app library.
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# Also, notify LVMetaD about any relevant block device removal.
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#
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# This rule is essential for having the information in LVMetaD up-to-date.
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# It also requires blkid to be called on block devices before so only devices
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# used as LVM PVs are processed (ID_FS_TYPE="LVM2_member" or "LVM1_member").
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SUBSYSTEM!="block", GOTO="lvm_end"
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(LVM_EXEC_RULE)
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# If the PV label got lost, inform lvmetad about it.
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ENV{DM_ID_FS_TYPE_OLD}=="LVM2_member|LVM1_member", ENV{DM_ID_FS_TYPE}!="LVM2_member|LVM1_member", GOTO="lvm_scan"
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# Only process devices already marked as a PV - this requires blkid to be called before.
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ENV{ID_FS_TYPE}!="LVM2_member|LVM1_member", GOTO="lvm_end"
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ACTION=="remove", GOTO="lvm_scan"
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ACTION=="change", KERNEL=="md[0-9]*|loop[0-9]*", GOTO="lvm_scan"
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# If the PV is not a dm device, scan only after device addition (ADD event)
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KERNEL!="dm-[0-9]*", ACTION!="add", GOTO="lvm_end"
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# If the PV is a dm device, scan only after proper mapping activation (CHANGE event + DM_ACTIVATION=1)
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# or after a coldplug (event retrigger) with "add" event (ADD event + DM_ACTIVATION=1)
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KERNEL=="dm-[0-9]*", ENV{DM_ACTIVATION}!="1", GOTO="lvm_end"
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LABEL="lvm_scan"
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RUN+="(LVM_EXEC)/lvm pvscan --background --cache --activate ay --major $major --minor $minor"
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LABEL="lvm_end"
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