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udev rule: remove lvmetad comments

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This commit is contained in:
David Teigland 2020-11-25 16:57:54 -06:00
parent b68141a49d
commit 10a095a58b
1 changed files with 3 additions and 12 deletions
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15
udev/69-dm-lvm-metad.rules.in
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@ -4,14 +4,7 @@
# Udev rules for LVM. # Udev rules for LVM.
# #
# Scan all block devices having a PV label for LVM metadata. # This rule requires blkid to be called on block devices before so only devices
# 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"). # used as LVM PVs are processed (ID_FS_TYPE="LVM2_member" or "LVM1_member").
SUBSYSTEM!="block", GOTO="lvm_end" SUBSYSTEM!="block", GOTO="lvm_end"
@ -19,8 +12,7 @@ SUBSYSTEM!="block", GOTO="lvm_end"
ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", GOTO="lvm_end" ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", GOTO="lvm_end"
# If the PV label got lost, inform lvmetad immediately. # Detect removed PV label by comparing previous ID_FS_TYPE value with current one.
# Detect the lost PV label by comparing previous ID_FS_TYPE value with current one.
ENV{.ID_FS_TYPE_NEW}="$env{ID_FS_TYPE}" ENV{.ID_FS_TYPE_NEW}="$env{ID_FS_TYPE}"
IMPORT{db}="ID_FS_TYPE" IMPORT{db}="ID_FS_TYPE"
ENV{ID_FS_TYPE}=="LVM2_member|LVM1_member", ENV{.ID_FS_TYPE_NEW}!="LVM2_member|LVM1_member", ENV{LVM_PV_GONE}="1" ENV{ID_FS_TYPE}=="LVM2_member|LVM1_member", ENV{.ID_FS_TYPE_NEW}!="LVM2_member|LVM1_member", ENV{LVM_PV_GONE}="1"
@ -31,7 +23,6 @@ ENV{LVM_PV_GONE}=="1", GOTO="lvm_scan"
ENV{ID_FS_TYPE}!="LVM2_member|LVM1_member", GOTO="lvm_end" ENV{ID_FS_TYPE}!="LVM2_member|LVM1_member", GOTO="lvm_end"
ENV{DM_MULTIPATH_DEVICE_PATH}=="1", GOTO="lvm_end" ENV{DM_MULTIPATH_DEVICE_PATH}=="1", GOTO="lvm_end"
# Inform lvmetad about any PV that is gone.
ACTION=="remove", GOTO="lvm_scan" ACTION=="remove", GOTO="lvm_scan"
# Create /dev/disk/by-id/lvm-pv-uuid-<PV_UUID> symlink for each PV # Create /dev/disk/by-id/lvm-pv-uuid-<PV_UUID> symlink for each PV
@ -69,7 +60,6 @@ ENV{LVM_LOOP_PV_ACTIVATED}!="1", ENV{SYSTEMD_READY}="0"
GOTO="lvm_end" GOTO="lvm_end"
# If the PV is not a special device listed above, scan only if necessary. # If the PV is not a special device listed above, scan only if necessary.
# For "direct_pvscan" mode (see below), this means run rules only an ADD events.
# For "systemd_background" mode, systemd takes care of this by activating # For "systemd_background" mode, systemd takes care of this by activating
# the lvm2-pvscan@.service only once. # the lvm2-pvscan@.service only once.
LABEL="next" LABEL="next"
@ -113,6 +103,7 @@ ENV{SYSTEMD_ALIAS}="/dev/block/$major:$minor"
ENV{SYSTEMD_WANTS}+="lvm2-pvscan@$major:$minor.service" ENV{SYSTEMD_WANTS}+="lvm2-pvscan@$major:$minor.service"
GOTO="lvm_end" GOTO="lvm_end"
# FIXME: this mode is not used and should be removed.
LABEL="direct_pvscan" LABEL="direct_pvscan"
# The table below summarises the situations in which we reach the LABEL="lvm_scan" # The table below summarises the situations in which we reach the LABEL="lvm_scan"