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qemu: Move snapshot disk validation functions into one

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Move the code so that both the new image and old image can be verified
in the same function.
This commit is contained in:
Peter Krempa 2017-11-15 13:15:57 +01:00
parent d602a5f28a
commit 8ffdeed455
1 changed files with 36 additions and 55 deletions
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91
src/qemu/qemu_driver.c
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@ -13945,17 +13945,19 @@ qemuDomainSnapshotCreateActiveInternal(virConnectPtr conn,
static int
qemuDomainSnapshotPrepareDiskExternalBackingInactive(virDomainDiskDefPtr disk)
qemuDomainSnapshotPrepareDiskExternalInactive(virDomainSnapshotDiskDefPtr snapdisk,
virDomainDiskDefPtr domdisk)
{
int actualType = virStorageSourceGetActualType(disk->src);
int domDiskType = virStorageSourceGetActualType(domdisk->src);
int snapDiskType = virStorageSourceGetActualType(snapdisk->src);
switch ((virStorageType) actualType) {
switch ((virStorageType) domDiskType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
return 0;
break;
case VIR_STORAGE_TYPE_NETWORK:
switch ((virStorageNetProtocol) disk->src->protocol) {
switch ((virStorageNetProtocol) domdisk->src->protocol) {
case VIR_STORAGE_NET_PROTOCOL_NONE:
case VIR_STORAGE_NET_PROTOCOL_NBD:
case VIR_STORAGE_NET_PROTOCOL_RBD:
@ -13973,7 +13975,7 @@ qemuDomainSnapshotPrepareDiskExternalBackingInactive(virDomainDiskDefPtr disk)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("external inactive snapshots are not supported on "
"'network' disks using '%s' protocol"),
virStorageNetProtocolTypeToString(disk->src->protocol));
virStorageNetProtocolTypeToString(domdisk->src->protocol));
return -1;
}
break;
@ -13984,7 +13986,23 @@ qemuDomainSnapshotPrepareDiskExternalBackingInactive(virDomainDiskDefPtr disk)
case VIR_STORAGE_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("external inactive snapshots are not supported on "
"'%s' disks"), virStorageTypeToString(actualType));
"'%s' disks"), virStorageTypeToString(domDiskType));
return -1;
}
switch ((virStorageType) snapDiskType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
break;
case VIR_STORAGE_TYPE_NETWORK:
case VIR_STORAGE_TYPE_DIR:
case VIR_STORAGE_TYPE_VOLUME:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("external inactive snapshots are not supported on "
"'%s' disks"), virStorageTypeToString(snapDiskType));
return -1;
}
@ -13993,33 +14011,27 @@ qemuDomainSnapshotPrepareDiskExternalBackingInactive(virDomainDiskDefPtr disk)
static int
qemuDomainSnapshotPrepareDiskExternalBackingActive(virDomainDiskDefPtr disk)
qemuDomainSnapshotPrepareDiskExternalActive(virDomainSnapshotDiskDefPtr snapdisk,
virDomainDiskDefPtr domdisk)
{
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
int actualType = virStorageSourceGetActualType(snapdisk->src);
if (domdisk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("external active snapshots are not supported on scsi "
"passthrough devices"));
return -1;
}
return 0;
}
static int
qemuDomainSnapshotPrepareDiskExternalOverlayActive(virDomainSnapshotDiskDefPtr disk)
{
int actualType = virStorageSourceGetActualType(disk->src);
switch ((virStorageType) actualType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
return 0;
break;
case VIR_STORAGE_TYPE_NETWORK:
switch ((virStorageNetProtocol) disk->src->protocol) {
switch ((virStorageNetProtocol) snapdisk->src->protocol) {
case VIR_STORAGE_NET_PROTOCOL_GLUSTER:
return 0;
break;
case VIR_STORAGE_NET_PROTOCOL_NONE:
case VIR_STORAGE_NET_PROTOCOL_NBD:
@ -14037,7 +14049,7 @@ qemuDomainSnapshotPrepareDiskExternalOverlayActive(virDomainSnapshotDiskDefPtr d
virReportError(VIR_ERR_INTERNAL_ERROR,
_("external active snapshots are not supported on "
"'network' disks using '%s' protocol"),
virStorageNetProtocolTypeToString(disk->src->protocol));
virStorageNetProtocolTypeToString(snapdisk->src->protocol));
return -1;
}
@ -14057,31 +14069,6 @@ qemuDomainSnapshotPrepareDiskExternalOverlayActive(virDomainSnapshotDiskDefPtr d
}
static int
qemuDomainSnapshotPrepareDiskExternalOverlayInactive(virDomainSnapshotDiskDefPtr disk)
{
int actualType = virStorageSourceGetActualType(disk->src);
switch ((virStorageType) actualType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
return 0;
case VIR_STORAGE_TYPE_NETWORK:
case VIR_STORAGE_TYPE_DIR:
case VIR_STORAGE_TYPE_VOLUME:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("external inactive snapshots are not supported on "
"'%s' disks"), virStorageTypeToString(actualType));
return -1;
}
return 0;
}
static int
qemuDomainSnapshotPrepareDiskExternal(virConnectPtr conn,
virDomainDiskDefPtr disk,
@ -14099,16 +14086,10 @@ qemuDomainSnapshotPrepareDiskExternal(virConnectPtr conn,
if (virStorageTranslateDiskSourcePool(conn, disk) < 0)
return -1;
if (qemuDomainSnapshotPrepareDiskExternalBackingInactive(disk) < 0)
return -1;
if (qemuDomainSnapshotPrepareDiskExternalOverlayInactive(snapdisk) < 0)
if (qemuDomainSnapshotPrepareDiskExternalInactive(snapdisk, disk) < 0)
return -1;
} else {
if (qemuDomainSnapshotPrepareDiskExternalBackingActive(disk) < 0)
return -1;
if (qemuDomainSnapshotPrepareDiskExternalOverlayActive(snapdisk) < 0)
if (qemuDomainSnapshotPrepareDiskExternalActive(snapdisk, disk) < 0)
return -1;
}