From dafa4f621f2841e73a09a458e372d6af973e1eda Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Fri, 16 Apr 2010 16:42:54 +0200
Subject: [PATCH 20/40] udev-rules: be more careful about md devices and blkid runs

---
 modules.d/95udev-rules/59-persistent-storage.rules |   21 +++++++++++++++++++-
 1 files changed, 20 insertions(+), 1 deletions(-)

diff --git a/modules.d/95udev-rules/59-persistent-storage.rules b/modules.d/95udev-rules/59-persistent-storage.rules
index 299a71d..89c7609 100644
--- a/modules.d/95udev-rules/59-persistent-storage.rules
+++ b/modules.d/95udev-rules/59-persistent-storage.rules
@@ -3,7 +3,26 @@ ACTION!="add|change", GOTO="ps_end"
 
 KERNEL=="cciss[0-9]*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
 KERNEL=="nbd[0-9]*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
-KERNEL=="md[0-9]*|md_d[0-9]*|md/*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
+
+
+KERNEL!="md[0-9]*|md_d[0-9]*|md/*", KERNEL!="md*", GOTO="md_end"
+
+# partitions have no md/{array_state,metadata_version}
+ENV{DEVTYPE}=="partition", GOTO="md_ignore_state"
+
+# container devices have a metadata version of e.g. 'external:ddf' and
+# never leave state 'inactive'
+ATTR{md/metadata_version}=="external:[A-Za-z]*", ATTR{md/array_state}=="inactive", GOTO="md_ignore_state"
+TEST!="md/array_state", GOTO="md_end"
+ATTR{md/array_state}=="|clear|inactive", GOTO="md_end"
+
+LABEL="md_ignore_state"
+
+IMPORT{program}="/sbin/mdadm --detail --export $tempnode"
+IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
+OPTIONS+="link_priority=100"
+OPTIONS+="watch"
+LABEL="md_end"
 
 
 KERNEL!="dm-[0-9]*", GOTO="ps_end"
-- 
1.7.0.1