[RHEL6-branch] Use blacklist_exceptions for mpath devices (#612399)

[Peter Jones <pjones@xxxxxxxxxx>]

From: NEC <mfuruta@xxxxxxxxxx>

This makes anaconda generate a blacklist_exceptions section in multipath.conf
---
 storage/devicelibs/mpath.py |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/storage/devicelibs/mpath.py b/storage/devicelibs/mpath.py
index 50cccfd..ae7b257 100644
--- a/storage/devicelibs/mpath.py
+++ b/storage/devicelibs/mpath.py
@@ -232,6 +232,14 @@ blacklist {
                 ret += '\t\tvendor %s\n' % device.vendor
                 ret += '\t\tproduct %s\n' % device.model
                 ret += '\t}\n'
+        if self.mpaths:
+		ret += '\twwid "*"\n'
+		ret += '}\n'
+		ret += 'blacklist_exceptions {\n'
+		for mpath in self.mpaths:
+			for k,v in mpath.config.items():
+				if k == 'wwid':
+					ret += '\twwid %s\n' % v
         ret += '}\n'
         ret += 'multipaths {\n'
         for mpath in self.mpaths:
-- 
1.7.1.1

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