From: John Ferlan <jferlan@redhat.com>
Date: Thu, 17 Dec 2015 12:30:03 +0000 (-0500)
Subject: storage: Attempt to refresh volume after successful wipe volume
X-Git-Tag: v1.3.1-rc1~166
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=80ca86e54d101508ba6f3c5affc420d946810331;p=thirdparty%2Flibvirt.git

storage: Attempt to refresh volume after successful wipe volume

https://bugzilla.redhat.com/show_bug.cgi?id=1270709

When a volume wipe is successful, perform a volume refresh afterwards to
update any volume data that may be used in future volume commands, such as
volume resize.  For a raw file volume, a wipe could truncate the file and
a followup volume resize the capacity may fail because the volume target
allocation isn't updated to reflect the wipe activity.
---

diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
index bbf21f684f..2531a8817f 100644
--- a/src/storage/storage_driver.c
+++ b/src/storage/storage_driver.c
@@ -2436,7 +2436,14 @@ storageVolWipePattern(virStorageVolPtr obj,
         goto cleanup;
     }
 
-    ret = backend->wipeVol(obj->conn, pool, vol, algorithm, flags);
+    if (backend->wipeVol(obj->conn, pool, vol, algorithm, flags) < 0)
+        goto cleanup;
+
+    if (backend->refreshVol &&
+        backend->refreshVol(obj->conn, pool, vol) < 0)
+        goto cleanup;
+
+    ret = 0;
 
  cleanup:
     virStoragePoolObjUnlock(pool);