dmraid: only scan once because of one device

modules.d/90dmraid/61-dmraid-imsm.rules

@@ -24,6 +24,6 @@ PROGRAM=="/bin/sh -c 'for i in $sys/$devpath/holders/dm-[0-9]*; do [ -e $$i ] &&
 ENV{DEVTYPE}!="partition", \
     RUN+="/sbin/partx -d --nr 1-1024 $env{DEVNAME}"
 
-RUN+="/sbin/initqueue --onetime --unique --settled /sbin/dmraid_scan"
+RUN+="/sbin/initqueue --onetime --unique --settled /sbin/dmraid_scan $env{DEVNAME}"
 
 LABEL="dm_end"

modules.d/90dmraid/dmraid.sh

@@ -4,6 +4,13 @@
 
 type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
 
+dev="$1"
+devenc=$(str_replace "$1" '/' '\2f')
+
+[ -e /tmp/dmraid.$devenc ] && exit 0
+
+>/tmp/dmraid.$devenc
+
 DM_RAIDS=$(getargs rd.dm.uuid -d rd_DM_UUID=)
 
 if [ -n "$DM_RAIDS" ] || getargbool 0 rd.auto; then