2:44 a.m.
Add a new attribute to snapshot disks XML element,
which allows specifying the name that will be used to refer
to internal snapshots.
Signed-off-by: Or Ozeri <oro(a)il.ibm.com>
---
docs/formatsnapshot.rst | 5 +++++
src/conf/schemas/domainsnapshot.rng | 4 ++++
src/conf/snapshot_conf.c | 27 +++++++++++++++++++++++++++
src/conf/snapshot_conf.h | 2 ++
4 files changed, 38 insertions(+)
diff --git a/docs/formatsnapshot.rst b/docs/formatsnapshot.rst
index 085c712053..d98066dd8c 100644
--- a/docs/formatsnapshot.rst
+++ b/docs/formatsnapshot.rst
@@ -145,6 +145,11 @@ The top-level ``domainsnapshot`` element may contain the following
elements:
driver and supported values are ``file``, ``block`` and ``network``
:since:`(since 1.2.2)`.
+ :since:`Since 9.1.0` the ``disk`` element supports an optional attribute
+ ``snapshotName`` if the ``snapshot`` attribute is set to ``internal``. This
+ attribute specifies the name that will be used to refer to the
+ internal disk snapshot.
+
``source``
If the snapshot mode is external (whether specified or inherited),
diff --git a/src/conf/schemas/domainsnapshot.rng b/src/conf/schemas/domainsnapshot.rng
index 4048266f1d..19f097d2b3 100644
--- a/src/conf/schemas/domainsnapshot.rng
+++ b/src/conf/schemas/domainsnapshot.rng
@@ -209,6 +209,10 @@
<value>manual</value>
</attribute>
</choice>
+ <optional>
+ <attribute name="snapshotName">
+ </attribute>
+ </optional>
</element>
</define>
diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c
index 9bf3c78353..58a6afa26d 100644
--- a/src/conf/snapshot_conf.c
+++ b/src/conf/snapshot_conf.c
@@ -150,6 +150,8 @@ virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
VIR_STORAGE_TYPE_FILE) < 0)
return -1;
+ def->snapshot_name = virXMLPropString(node, "snapshotName");
+
if (src->type == VIR_STORAGE_TYPE_VOLUME ||
src->type == VIR_STORAGE_TYPE_DIR) {
virReportError(VIR_ERR_XML_ERROR,
@@ -192,6 +194,10 @@ virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
(src->path || src->format))
def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
+ if (def->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_DEFAULT &&
+ def->snapshot_name)
+ def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL;
+
def->name = g_steal_pointer(&name);
def->src = g_steal_pointer(&src);
@@ -670,6 +676,15 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDef *snapdef,
return -1;
}
+ if (snapdisk->snapshot_name &&
+ snapdisk->snapshot != VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("snapshotName for disk '%s' requires "
+ "use of internal snapshot mode"),
+ snapdisk->name);
+ return -1;
+ }
+
if (snapdisk->src->path &&
snapdisk->snapshot != VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
@@ -714,6 +729,16 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDef *snapdef,
if (virDomainSnapshotDefAssignExternalNames(snapdef) < 0)
return -1;
+ /* set default snapshot name for internal snapshots */
+ for (i = 0; i < snapdef->ndisks; i++) {
+ virDomainSnapshotDiskDef * disk = &snapdef->disks[i];
+
+ if (disk->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL &&
+ !disk->snapshot_name) {
+ disk->snapshot_name = g_strdup(snapdef->parent.name);
+ }
+ }
+
return 0;
}
@@ -748,6 +773,8 @@ virDomainSnapshotDiskDefFormat(virBuffer *buf,
if (disk->snapshot > 0)
virBufferAsprintf(&attrBuf, " snapshot='%s'",
virDomainSnapshotLocationTypeToString(disk->snapshot));
+ if (disk->snapshot_name)
+ virBufferAsprintf(&attrBuf, " snapshotName='%s'",
disk->snapshot_name);
if (disk->snapshotDeleteInProgress)
virBufferAddLit(&childBuf, "<snapshotDeleteInProgress/>\n");
diff --git a/src/conf/snapshot_conf.h b/src/conf/snapshot_conf.h
index 96c77ef42b..c133c105c7 100644
--- a/src/conf/snapshot_conf.h
+++ b/src/conf/snapshot_conf.h
@@ -57,6 +57,8 @@ struct _virDomainSnapshotDiskDef {
/* details of wrapper external file. src is always non-NULL.
* XXX optimize this to allow NULL for internal snapshots? */
virStorageSource *src;
+
+ char *snapshot_name; /* snapshot name for internal snapshots */
};
void
--
2.25.1