# Copyright (C) 2012 Red Hat, Inc. All rights reserved.
#
# This file is part of LVM2.

# Udev rules for LVM.
#
# Scan all block devices having a PV label for LVM metadata.
# Store this information in LVMetaD (the LVM metadata daemon) and maintain LVM
# metadata state for improved performance by avoiding further scans while
# running subsequent LVM commands or while using lvm2app library.
# Also, notify LVMetaD about any relevant block device removal.
#
# This rule is essential for having the information in LVMetaD up-to-date.
# It also requires blkid to be called on block devices before so only devices
# used as LVM PVs are processed (ID_FS_TYPE="LVM2_member" or "LVM1_member").

SUBSYSTEM!="block", GOTO="lvm_end"
(LVM_EXEC_RULE)

# Device-mapper devices are processed only on change event or on supported synthesized event.
KERNEL=="dm-[0-9]*", ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="lvm_end"

# Only process devices already marked as a PV - this requires blkid to be called before.
ENV{ID_FS_TYPE}=="LVM2_member|LVM1_member", RUN+="(LVM_EXEC)/lvm pvscan --cache --activate ay --major $major --minor $minor"

LABEL="lvm_end"