[Libguestfs] [PATCH] v2v: -o vdsm, -o rhev: Don't create compat=0.10 images;

[Richard W.M. Jones]

Support for RHEV with RHEL 6 nodes required us to output the old style
qcow2 compat=0.10 images.  Since RHEV 3.6 GA, RHEL 6 has not been
supported as a RHEV node type.

There are significant downsides to using qcow2 compat=0.10 instead of
the modern default (compat=1.1), so stop forcing compat=0.10 for these
targets.

Thanks: Yaniv Kaul, Michal Skrivanek.
---
 v2v/output_rhev.ml |  4 ----
 v2v/output_vdsm.ml | 10 ----------
 2 files changed, 14 deletions(-)

diff --git a/v2v/output_rhev.ml b/v2v/output_rhev.ml
index e45043b..3280150 100644
--- a/v2v/output_rhev.ml
+++ b/v2v/output_rhev.ml
@@ -248,10 +248,6 @@ object
     Changeuid.func changeuid_t (
       fun () ->
         let g = open_guestfs ~identifier:"rhev_disk_create" () in
-        (* For qcow2, override v2v-supplied compat option, because RHEL 6
-         * nodes cannot handle qcow2 v3 (RHBZ#1145582).
-         *)
-        let compat = if format <> "qcow2" then compat else Some "0.10" in
         g#disk_create ?backingfile ?backingformat ?preallocation ?compat
           ?clustersize path format size;
         (* Make it sufficiently writable so that possibly root, or
diff --git a/v2v/output_vdsm.ml b/v2v/output_vdsm.ml
index 7cd94c0..92ce5c0 100644
--- a/v2v/output_vdsm.ml
+++ b/v2v/output_vdsm.ml
@@ -145,16 +145,6 @@ object
     (* Return the list of targets. *)
     targets
 
-  method disk_create ?backingfile ?backingformat ?preallocation ?compat
-    ?clustersize path format size =
-    let g = open_guestfs ~identifier:"vdsm_disk_create" () in
-    (* For qcow2, override v2v-supplied compat option, because RHEL 6
-     * nodes cannot handle qcow2 v3 (RHBZ#1145582).
-     *)
-    let compat = if format <> "qcow2" then compat else Some "0.10" in
-    g#disk_create ?backingfile ?backingformat ?preallocation ?compat
-      ?clustersize path format size
-
   (* This is called after conversion to write the OVF metadata. *)
   method create_metadata source targets _ guestcaps inspect target_firmware =
     (* See #supported_firmware above. *)
-- 
2.10.2