This implements virDomainSnapshotDelete API to support external
snapshots. The support doesn't include flags
VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN and
VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN_ONLY as it would add more complexity
and IMHO these flags should not existed at all.
Gitlab repo with the patches:
https://gitlab.com/phrdina/libvirt/-/commits/snapshot-delete-external
Changes in v3:
- added new patch to store snapshotDelete in status XML
- fixed aborting jobs when daemon is restarted only when snapshot
delete was previously stared
Changes in v2:
- qemuBlockCommit properly unrefs job by calling qemuBlockJobStartupFinalize
- added comment to various functions
- renamed some functions as suggested in review of v1 patches
- improved error messages
- introduced virStorageSourceChainLookupBySource()
- use virStorageSourceIsBacking()
- properly cleanup qemuSnapshotDeleteExternalData
- don't allow deleting snapshot if there is another block job
Pavel Hrdina (32):
libvirt: introduce VIR_DOMAIN_JOB_OPERATION_SNAPSHOT_DELETE
qemu_block: extract block commit code to separate function
qemu_block: move qemuDomainBlockPivot out of qemu_driver
qemu_block: add async domain job support to qemuBlockCommit
qemu_block: add async domain job support to qemuBlockPivot
qemu_monitor: introduce qemuMonitorJobFinalize
qemu_monitor_json: allow configuring autofinalize for block commit
qemu_block: allow configuring autofinalize for block commit
qemu_block: introduce qemuBlockFinalize
qemu_block: change qemuBlockCommit to return job pointer
qemu_blockjob: process QEMU_MONITOR_JOB_STATUS_PENDING signal
storage_source: introduce virStorageSourceChainLookupBySource
qemu_snapshot: refactor qemuSnapshotDelete
qemu_snapshot: introduce qemuSnapshotDeleteSingle
qemu_snapshot: introduce qemuSnapshotDeleteChildren
qemu_snapshot: rework snapshot children deletion
qemu_snapshot: move snapshot discard out of qemu_domain.c
qemu_snapshot: move snapshot metadata reparent code
qemu_snapshot: introduce qemuSnapshotDiscardMetadata
qemu_snapshot: introduce qemuSnapshotDeleteValidate function
qemu_snapshot: refactor validation of snapshot delete
qemu_snapshot: error out when deleting internal snapshot on non-active
disk
qemu_snapshot: convert snapshot delete to async domain job
qemu_snapshot: prepare data for external snapshot deletion
qemu_snapshot: implement deletion of external snapshot
qemu_snapshot: update metadata when deleting snapshots
qemu_snapshot: when deleting snapshot invalidate parent snapshot
qemu_domain: store snapshotDelete in qemuDomainJobPrivate
qemu_process: abort snapshot delete when daemon starts
qemu_snapshot: enable deletion of external snapshots
api: document support for external snapshot deletion
NEWS: document support for external snapshot deletion
NEWS.rst | 6 +
include/libvirt/libvirt-domain.h | 1 +
src/conf/snapshot_conf.c | 8 +
src/conf/snapshot_conf.h | 1 +
src/libvirt-domain-snapshot.c | 7 +
src/libvirt_private.syms | 1 +
src/qemu/qemu_backup.c | 1 +
src/qemu/qemu_block.c | 364 +++++++++++
src/qemu/qemu_block.h | 22 +
src/qemu/qemu_blockjob.c | 21 +-
src/qemu/qemu_blockjob.h | 1 +
src/qemu/qemu_domain.c | 118 +---
src/qemu/qemu_domain.h | 11 +-
src/qemu/qemu_driver.c | 292 +--------
src/qemu/qemu_monitor.c | 21 +-
src/qemu/qemu_monitor.h | 8 +-
src/qemu/qemu_monitor_json.c | 26 +-
src/qemu/qemu_monitor_json.h | 8 +-
src/qemu/qemu_process.c | 37 ++
src/qemu/qemu_snapshot.c | 981 +++++++++++++++++++++++++++---
src/qemu/qemu_snapshot.h | 4 +
src/storage_file/storage_source.c | 40 ++
src/storage_file/storage_source.h | 6 +
tests/qemumonitorjsontest.c | 4 +-
tools/virsh-domain.c | 1 +
25 files changed, 1514 insertions(+), 476 deletions(-)
--
2.39.0
