[libvirt] [PATCH v2 4/6] vol: Add thin_pool to _virStorageVolSource

[John Ferlan]

A thin lv doesn't have any extents defined - rather it uses a concept of
a "thin-pool" in order to describe it's source. In order to allow that to
be displayed properly in a future patch, add a new 'thin_pool' name that
can be used by a future patch to store the name of the source thin_pool
name used by a thin logical volume.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/conf/storage_conf.c | 5 +++++
 src/conf/storage_conf.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c
index 3657dfd..8ceb465 100644
--- a/src/conf/storage_conf.c
+++ b/src/conf/storage_conf.c
@@ -322,6 +322,7 @@ virStorageVolDefFree(virStorageVolDefPtr def)
     for (i = 0; i < def->source.nextent; i++)
         VIR_FREE(def->source.extents[i].path);
     VIR_FREE(def->source.extents);
+    VIR_FREE(def->source.thin_pool);
 
     virStorageSourceClear(&def->target);
     VIR_FREE(def);
@@ -1655,6 +1656,10 @@ virStorageVolDefFormat(virStoragePoolDefPtr pool,
             virBufferAddLit(&buf, "</device>\n");
     }
 
+    if (def->source.thin_pool)
+        virBufferEscapeString(&buf, "<name>%s</name>\n",
+                              def->source.thin_pool);
+
     virBufferAdjustIndent(&buf, -2);
     virBufferAddLit(&buf, "</source>\n");
 
diff --git a/src/conf/storage_conf.h b/src/conf/storage_conf.h
index f1dc62b..7e15a70 100644
--- a/src/conf/storage_conf.h
+++ b/src/conf/storage_conf.h
@@ -55,6 +55,7 @@ struct _virStorageVolSource {
 
     int partType; /* virStorageVolTypeDisk, only used by disk
                    * backend for partition type creation */
+    char *thin_pool; /* Used to print/dumpxml the thin pool name */
 };
 
 
-- 
2.5.0