Adding upstream version 060+5.upstream/060+5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 176 insertions, 0 deletions

diff --git a/modules.d/90lvm/lvm_scan.sh b/modules.d/90lvm/lvm_scan.sh
new file mode 100755
index 0000000..980e449
--- /dev/null
+++ b/modules.d/90lvm/lvm_scan.sh
@@ -0,0 +1,176 @@
+#!/bin/sh
+
+# run lvm scan if udev has settled
+
+extraargs="$*"
+type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
+
+VGS=$(getargs rd.lvm.vg -d rd_LVM_VG=)
+LVS=$(getargs rd.lvm.lv -d rd_LVM_LV=)
+
+# shellcheck disable=SC2174
+[ -d /etc/lvm ] || mkdir -m 0755 -p /etc/lvm
+[ -d /run/lvm ] || mkdir -m 0755 -p /run/lvm
+# build a list of devices to scan
+lvmdevs=$(
+    for f in /tmp/.lvm_scan-*; do
+        [ -e "$f" ] || continue
+        printf '%s' "${f##/tmp/.lvm_scan-} "
+    done
+)
+
+check_lvm_ver() {
+    maj=$1
+    min=$2
+    ver=$3
+    # --poll is supported since 2.2.57
+    [ "$4" -lt "$maj" ] && return 1
+    [ "$4" -gt "$maj" ] && return 0
+    [ "$5" -lt "$min" ] && return 1
+    [ "$5" -gt "$min" ] && return 0
+    [ "$6" -ge "$ver" ] && return 0
+    return 1
+}
+
+no_lvm_conf_filter() {
+    if [ ! -e /etc/lvm/lvm.conf ]; then
+        return 0
+    fi
+
+    if [ -e /run/lvm/initrd_no_filter ]; then
+        return 0
+    fi
+
+    if [ -e /run/lvm/initrd_filter ]; then
+        return 1
+    fi
+
+    if [ -e /run/lvm/initrd_global_filter ]; then
+        return 1
+    fi
+
+    # Save lvm config results in /run to avoid running
+    # lvm config commands for every PV that's scanned.
+
+    filter=$(lvm config devices/filter 2> /dev/null | grep "$filter=")
+    if [ -n "$filter" ]; then
+        printf '%s\n' "$filter" > /run/lvm/initrd_filter
+        return 1
+    fi
+
+    global_filter=$(lvm config devices/global_filter 2> /dev/null | grep "$global_filter=")
+    if [ -n "$global_filter" ]; then
+        printf '%s\n' "$global_filter" > /run/lvm/initrd_global_filter
+        return 1
+    fi
+
+    # /etc/lvm/lvm.conf exists with no filter setting
+    true > /run/lvm/initrd_no_filter
+    return 0
+}
+
+# If no lvm.conf exists, create a basic one with a global section.
+if [ ! -e /etc/lvm/lvm.conf ]; then
+    {
+        echo 'global {'
+        echo '}'
+    } > /etc/lvm/lvm.conf
+    lvmwritten=1
+fi
+
+# Save the original lvm.conf before appending a filter setting.
+if [ ! -e /etc/lvm/lvm.conf.orig ]; then
+    cp /etc/lvm/lvm.conf /etc/lvm/lvm.conf.orig
+fi
+
+# If the original lvm.conf does not contain a filter setting,
+# then generate a filter and append it to the original lvm.conf.
+# The filter is generated from the list PVs that have been seen
+# so far (each has been processed by the lvm udev rule.)
+if no_lvm_conf_filter; then
+    {
+        echo 'devices {'
+        printf '    filter = [ '
+        for dev in $lvmdevs; do
+            printf '"a|^/dev/%s$|", ' "$dev"
+        done
+        echo '"r/.*/" ]'
+        echo '}'
+    } > /etc/lvm/lvm.conf.filter
+    lvmfilter=1
+    cat /etc/lvm/lvm.conf.orig /etc/lvm/lvm.conf.filter > /etc/lvm/lvm.conf
+fi
+
+# hopefully this output format will never change, e.g.:
+#   LVM version:     2.02.53(1) (2009-09-25)
+OLDIFS=$IFS
+IFS=.
+# shellcheck disable=SC2046
+set -- $(lvm version 2> /dev/null)
+IFS=$OLDIFS
+maj=${1##*:}
+min=$2
+sub=${3%% *}
+sub=${sub%%\(*}
+
+# For lvchange and vgchange use --sysinit which:
+# disables polling (--poll n)
+# ignores monitoring (--ignoremonitoring)
+# ignores locking failures (--ignorelockingfailure)
+# disables hints (--nohints)
+#
+# For lvs and vgscan:
+# disable locking (--nolocking)
+# disable hints (--nohints)
+
+activate_args="--sysinit $extraargs"
+unset extraargs
+
+export LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES=1
+
+scan_args="--nolocking"
+
+check_lvm_ver 2 3 14 "$maj" "$min" "$sub" \
+    && scan_args="$scan_args --nohints"
+
+if [ -n "$LVS" ]; then
+    info "Scanning devices $lvmdevs for LVM logical volumes $LVS"
+    # shellcheck disable=SC2086
+    LVSLIST=$(lvm lvs $scan_args --noheading -o lv_full_name,segtype $LVS)
+    info "$LVSLIST"
+
+    # Only attempt to activate an LV if it appears in the lvs output.
+    for LV in $LVS; do
+        if strstr "$LVSLIST" "$LV"; then
+            # This lvchange is expected to fail if all PVs used by
+            # the LV are not yet present.  Premature/failed lvchange
+            # could be avoided by reporting if an LV is complete
+            # from the lvs command above and skipping this lvchange
+            # if the LV is not lised as complete.
+            # shellcheck disable=SC2086
+            lvm lvchange --yes -K -ay $activate_args "$LV" 2>&1 | vinfo
+        fi
+    done
+fi
+
+if [ -z "$LVS" ] || [ -n "$VGS" ]; then
+    info "Scanning devices $lvmdevs for LVM volume groups $VGS"
+    # shellcheck disable=SC2086
+    lvm vgscan $scan_args 2>&1 | vinfo
+    # shellcheck disable=SC2086
+    lvm vgchange -ay $activate_args $VGS 2>&1 | vinfo
+fi
+
+if [ "$lvmwritten" ]; then
+    rm -f -- /etc/lvm/lvm.conf
+elif [ "$lvmfilter" ]; then
+    # revert filter that was appended to existing lvm.conf
+    cp /etc/lvm/lvm.conf.orig /etc/lvm/lvm.conf
+    rm -f -- /etc/lvm/lvm.conf.filter
+fi
+unset lvmwritten
+unset lvmfilter
+
+udevadm settle
+
+need_shutdown