From 3743a6858be4fdb1fe735884f1ea04862c361378 Mon Sep 17 00:00:00 2001
From: Petr Rockai <prokai@redhat.com>
Date: Thu, 23 Apr 2009 16:43:01 +0000
Subject: [PATCH] A more thorough PV equality test (that also copes better with
 MISSING_PVs) in _is_mirror_image_removable.

---
 lib/metadata/mirror.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/metadata/mirror.c b/lib/metadata/mirror.c
index c53aec3a3..5eb53f4df 100644
--- a/lib/metadata/mirror.c
+++ b/lib/metadata/mirror.c
@@ -440,7 +440,12 @@ static int _is_mirror_image_removable(struct logical_volume *mimage_lv,
 
 			pv_found = 0;
 			dm_list_iterate_items(pvl, removable_pvs) {
-				if (pv->dev->dev == pvl->pv->dev->dev) {
+				if (id_equal(&pv->id, &pvl->pv->id)) {
+					pv_found = 1;
+					break;
+				}
+				if (pvl->pv->dev && pv->dev &&
+				    pv->dev->dev == pvl->pv->dev->dev) {
 					pv_found = 1;
 					break;
 				}