File kdump-fix-multipath-user_friendly_names.patch of Package kdump.17334

From: Petr Tesarik <ptesarik@suse.com>
Date: Thu, 25 Oct 2018 10:02:43 +0200
Subject: Fix multipath configuration with user_friendly_names and/or aliases
References: bsc#1111207, LTC#171953, bsc#1125218, LTC#175465, bsc#1153601
Upstream: merged
Git-commit: 4b4dacfddd456a51c04a878e31d4544223ea9701

The setup script incorrectly uses the name of the multipath device
instead of its WWID (which can be retrieved from the device mapper
UUID simply by removing the "mpath-" prefix).

Signed-off-by: Petr Tesarik <ptesarik@suse.com>
---
 init/setup-kdump.functions |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/init/setup-kdump.functions
+++ b/init/setup-kdump.functions
@@ -982,9 +982,9 @@ function kdump_map_mpath_wwid()
     local f _dir _uuid _wwid _dev
     for f in /sys/block/*/dm/uuid ; do
 	eval "_uuid=\$(<$f)" 2>/dev/null
-	[[ "$_uuid" = mpath-* ]] || continue
+	_wwid="${_uuid#mpath-}"
+	[ "$_wwid" != "$_uuid" ] || continue
 	_dir="${f%/dm/uuid}"
-	_wwid=$(<"$_dir"/dm/name)
 	_dev=$(<"$_dir"/dev)
 	eval kdump_mpath_wwid_${_dev/:/_}=\$_wwid
     done