commit 5a1546f328b166871fbf0e0556b5a2aafba93d63
Author: David Weber <wb@munzinger.de>
Date:   Mon May 14 09:43:27 2012 +0200

    Add ignore param for readonly and shared disk in sanlock

diff --git a/src/locking/lock_driver_sanlock.c b/src/locking/lock_driver_sanlock.c
index d344d6a..57b688a 100644
--- a/src/locking/lock_driver_sanlock.c
+++ b/src/locking/lock_driver_sanlock.c
@@ -65,6 +65,7 @@ struct _virLockManagerSanlockDriver {
     bool requireLeaseForDisks;
     int hostID;
     bool autoDiskLease;
+    bool ignoreReadonlyShared;
     char *autoDiskLeasePath;
 };
 
@@ -114,6 +115,10 @@ static int virLockManagerSanlockLoadConfig(const char *configFile)
     CHECK_TYPE("auto_disk_leases", VIR_CONF_LONG);
     if (p) driver->autoDiskLease = p->l;
 
+    p = virConfGetValue(conf, "ignore_readonly_and_shared_disks");
+    CHECK_TYPE("ignore_readonly_and_shared_disks", VIR_CONF_LONG);
+    if (p) driver->ignoreReadonlyShared = p->l;
+
     p = virConfGetValue(conf, "disk_lease_dir");
     CHECK_TYPE("disk_lease_dir", VIR_CONF_STRING);
     if (p && p->str) {
@@ -624,6 +629,12 @@ static int virLockManagerSanlockAddResource(virLockManagerPtr lock,
                      SANLK_MAX_RESOURCES);
         return -1;
     }
+    
+    if (((flags & VIR_LOCK_MANAGER_RESOURCE_READONLY) ||
+        (flags &VIR_LOCK_MANAGER_RESOURCE_SHARED)) &&
+        (driver->ignoreReadonlyShared)) {
+            return 0;
+    }
 
     if (flags & VIR_LOCK_MANAGER_RESOURCE_READONLY) {
         virLockError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
diff --git a/src/locking/sanlock.conf b/src/locking/sanlock.conf
index efc35ee..5429522 100644
--- a/src/locking/sanlock.conf
+++ b/src/locking/sanlock.conf
@@ -52,3 +52,8 @@
 # to enabled, otherwise it defaults to disabled.
 #
 #require_lease_for_disks = 1
+
+#
+# Ignore readonly and shared disks as they aren't supportet yet
+#
+#ignore_readonly_and_shared_disks = 1