From a712afe42833443878898bb42851376cd8615ff9 Mon Sep 17 00:00:00 2001
From: Patrick East <patrick.east@purestorage.com>
Date: Tue, 14 Apr 2015 18:42:19 -0700
Subject: [PATCH] Add locking to PureISCSIDriver around creating Purity Host
 objects.

This will prevent us from getting conflicting credentials for
connection methods which will result in iSCSI attach operations to fail.

Change-Id: Ia206e7b5ff330c8fccb49ed23a31b120a5c04eb3
Closes-Bug: 1444224
---
 cinder/volume/drivers/pure.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cinder/volume/drivers/pure.py b/cinder/volume/drivers/pure.py
index b0a435b9e..c35b7df1e 100644
--- a/cinder/volume/drivers/pure.py
+++ b/cinder/volume/drivers/pure.py
@@ -329,6 +329,7 @@ class PureISCSIDriver(san.SanISCSIDriver):
             }
         return username, password, initiator_updates
 
+    @utils.synchronized('PureISCSIDriver._connect', external=True)
     def _connect(self, volume, connector, initiator_data):
         """Connect the host and volume; return dict describing connection."""
         connection = None
-- 
2.45.2