From: Loic Dachary <ldachary@redhat.com>
Date: Mon, 17 Aug 2015 22:18:51 +0000 (+0200)
Subject: ceph-disk: is_held must ignore multipath devices
X-Git-Tag: v9.1.0~252^2~1^2~11
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=7e5a69bcd2ea398c78aef165ea0aaa17548b6780;p=ceph.git

ceph-disk: is_held must ignore multipath devices

Always return an empty list when is_held is called on a multipath
device.

The dmcrypt logic base decisions depending on the holders/slaves
relationship. Such relationships can also exists for multipath devices
but do not have the same semantic.

http://tracker.ceph.com/issues/11881 Fixes: #11881

Signed-off-by: Loic Dachary <ldachary@redhat.com>
---

diff --git a/src/ceph-disk b/src/ceph-disk
index 7226dd51962d..fd0ca4822d93 100755
--- a/src/ceph-disk
+++ b/src/ceph-disk
@@ -633,6 +633,9 @@ def is_held(dev):
     Check if a device is held by another device (e.g., a dm-crypt mapping)
     """
     assert os.path.exists(dev)
+    if is_mpath(dev):
+        return []
+
     dev = os.path.realpath(dev)
     base = get_dev_name(dev)