From: Hannes Reinecke <hare@suse.de>
Date: Mon, 27 Mar 2017 00:15:44 +0000 (+1100)
Subject: udev-md-raid-assembly.rules: Skip non-ready devices
X-Git-Tag: mdadm-4.1-rc1~246
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a77acd7170199adc690332ded37c41f067c720e;p=thirdparty%2Fmdadm.git

udev-md-raid-assembly.rules: Skip non-ready devices

If a device isn't fully initialized (e.g if it should be
handled by multipathing) it should not be considered for
md/RAID auto-assembly.  Doing so can cause incorrect results
such as causing multipath to fail during startup.

There is a convention that the udev environment variable
SYSTEMD_READY be set to zero for such devices.  So change
the mdadm rules to ignore devices with SYSTEMD_READY==0.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
---

diff --git a/udev-md-raid-assembly.rules b/udev-md-raid-assembly.rules
index d0d440a6..8ca232a4 100644
--- a/udev-md-raid-assembly.rules
+++ b/udev-md-raid-assembly.rules
@@ -7,6 +7,9 @@ ENV{ANACONDA}=="?*", GOTO="md_inc_end"
 
 SUBSYSTEM!="block", GOTO="md_inc_end"
 
+# skip non-initialized devices
+ENV{SYSTEMD_READY}=="0", GOTO="md_inc_end"
+
 # handle potential components of arrays (the ones supported by md)
 ENV{ID_FS_TYPE}=="linux_raid_member", GOTO="md_inc"