domain_conf: extract disk driver source bits to its own function

Attribute `type` and sub-element `metadata_cache` are internally stored
in the `virStorageSource` structure. Sometimes we only care about the
disk source bits so we need a dedicated helper for that.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Pavel Hrdina 2021-05-27 15:25:51 +02:00
parent b1774e4e0f
commit fe6ed00ef7

View File

@ -8849,7 +8849,6 @@ virDomainDiskDefDriverParseXML(virDomainDiskDef *def,
xmlNodePtr cur,
xmlXPathContextPtr ctxt)
{
g_autofree char *tmp = NULL;
VIR_XPATH_NODE_AUTORESTORE(ctxt)
ctxt->node = cur;
@ -8900,19 +8899,6 @@ virDomainDiskDefDriverParseXML(virDomainDiskDef *def,
if (virXMLPropUInt(cur, "iothread", 10, VIR_XML_PROP_NONZERO, &def->iothread) < 0)
return -1;
if ((tmp = virXMLPropString(cur, "type"))) {
if (STREQ(tmp, "aio")) {
/* Xen back-compat */
def->src->format = VIR_STORAGE_FILE_RAW;
} else {
if ((def->src->format = virStorageFileFormatTypeFromString(tmp)) <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown driver format value '%s'"), tmp);
return -1;
}
}
}
if (virXMLPropEnum(cur, "detect_zeroes",
virDomainDiskDetectZeroesTypeFromString,
VIR_XML_PROP_NONZERO, &def->detect_zeroes) < 0)
@ -8921,9 +8907,36 @@ virDomainDiskDefDriverParseXML(virDomainDiskDef *def,
if (virXMLPropUInt(cur, "queues", 10, VIR_XML_PROP_NONE, &def->queues) < 0)
return -1;
return 0;
}
static int
virDomainDiskDefDriverSourceParseXML(virStorageSource *src,
xmlNodePtr cur,
xmlXPathContextPtr ctxt)
{
g_autofree char *tmp = NULL;
VIR_XPATH_NODE_AUTORESTORE(ctxt)
ctxt->node = cur;
if ((tmp = virXMLPropString(cur, "type"))) {
if (STREQ(tmp, "aio")) {
/* Xen back-compat */
src->format = VIR_STORAGE_FILE_RAW;
} else {
if ((src->format = virStorageFileFormatTypeFromString(tmp)) <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown driver format value '%s'"), tmp);
return -1;
}
}
}
if (virParseScaledValue("./metadata_cache/max_size", NULL,
ctxt,
&def->src->metadataCacheMaxSize,
&src->metadataCacheMaxSize,
1, ULLONG_MAX, false) < 0)
return -1;
@ -9129,6 +9142,9 @@ virDomainDiskDefParseXML(virDomainXMLOption *xmlopt,
if (virDomainDiskDefDriverParseXML(def, driverNode, ctxt) < 0)
return NULL;
if (virDomainDiskDefDriverSourceParseXML(def->src, driverNode, ctxt) < 0)
return NULL;
}
if ((mirrorNode = virXPathNode("./mirror", ctxt))) {