libvirt/src/qemu/qemu_checkpoint.h
Peter Krempa 8e94e29010 qemu: checkpoint: Track and relabel images for bitmap merging
Allow qemu access to modify backing files in case when we want to delete
a checkpoint.

This patch adds tracking of which images need to be relabelled when
calculating the transaction, the code to relabel them and rollback.

To verify that stuff works we also output the list of images to relabel
into the test case output files in qemublocktest.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-04 13:45:32 +01:00

83 lines
2.8 KiB
C

/*
* qemu_checkpoint.h: Implementation and handling of checkpoint
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "virconftypes.h"
#include "datatypes.h"
#include "qemu_conf.h"
virDomainObjPtr
qemuDomObjFromCheckpoint(virDomainCheckpointPtr checkpoint);
virDomainMomentObjPtr
qemuCheckpointObjFromCheckpoint(virDomainObjPtr vm,
virDomainCheckpointPtr checkpoint);
virDomainMomentObjPtr
qemuCheckpointObjFromName(virDomainObjPtr vm,
const char *name);
int
qemuCheckpointDiscardAllMetadata(virQEMUDriverPtr driver,
virDomainObjPtr vm);
virDomainCheckpointPtr
qemuCheckpointCreateXML(virDomainPtr domain,
virDomainObjPtr vm,
const char *xmlDesc,
unsigned int flags);
char *
qemuCheckpointGetXMLDesc(virDomainObjPtr vm,
virDomainCheckpointPtr checkpoint,
unsigned int flags);
int
qemuCheckpointDelete(virDomainObjPtr vm,
virDomainCheckpointPtr checkpoint,
unsigned int flags);
int
qemuCheckpointCreateCommon(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainCheckpointDefPtr *def,
virJSONValuePtr *actions,
virDomainMomentObjPtr *chk);
int
qemuCheckpointCreateFinalize(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virQEMUDriverConfigPtr cfg,
virDomainMomentObjPtr chk,
bool update_current);
void
qemuCheckpointRollbackMetadata(virDomainObjPtr vm,
virDomainMomentObjPtr chk);
int
qemuCheckpointDiscardDiskBitmaps(virStorageSourcePtr src,
virHashTablePtr blockNamedNodeData,
const char *delbitmap,
const char *parentbitmap,
virJSONValuePtr actions,
const char *diskdst,
GSList **reopenimages);