[PATCH] udev-md-raid-assembly.rules: skip if DM_UDEV_DISABLE_OTHER_RULES_FLAG

[mwilck@suse.com]

From: Martin Wilck <mwilck@suse.com>

device-mapper sets the flag DM_UDEV_DISABLE_OTHER_RULES_FLAG to 1 for
devices which are unusable. They may be no set up yet, suspended, or
otherwise unusable (e.g. multipath maps without usable path). This
flag does not necessarily imply SYSTEMD_READY=0 and must therefore
be tested separately.

Signed-off-by: Martin Wilck <mwilck@suse.com>
---
 udev-md-raid-assembly.rules | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/udev-md-raid-assembly.rules b/udev-md-raid-assembly.rules
index d668cdd..4568b01 100644
--- a/udev-md-raid-assembly.rules
+++ b/udev-md-raid-assembly.rules
@@ -21,6 +21,11 @@ IMPORT{cmdline}="noiswmd"
 IMPORT{cmdline}="nodmraid"
 
 ENV{nodmraid}=="?*", GOTO="md_inc_end"
+
+# device mapper sets DM_UDEV_DISABLE_OTHER_RULES_FLAG for devices which
+# aren't ready to use
+KERNEL=="dm-*", ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", GOTO="md_inc_end"
+
 ENV{ID_FS_TYPE}=="ddf_raid_member", GOTO="md_inc"
 ENV{noiswmd}=="?*", GOTO="md_inc_end"
 ENV{ID_FS_TYPE}=="isw_raid_member", ACTION!="change", GOTO="md_inc"
-- 
2.35.1