While looking at my work on incremental backups, Nir raised a good point: if we want to recreate a set of known checkpoints on one machine that will be taking over a domain from another machine, my initial proposal required making multiple API calls to list the XML for each checkpoint on the source, and then more API calls to redefine each checkpoint on the destination; it also had the drawback that the list has to be presented in topological order (the API won't let you define a child checkpoint if the parent is not defined first). He asked if I could instead add bulk APIs, for getting the XML for all checkpoints at once, and then for redefining all checkpoints at once. Since my checkpoint code borrows heavily from concepts in the snapshot code, I chose to tackle the problem by starting with this series, which does the same thing for snapshots as what I plan to do for checkpoints. That is, since this patch series adds virDomainGetXMLDesc(, VIR_DOMAIN_XML_SNAPSHOTS) and virDomainSnapshotCreateXML(, VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE_LIST), the checkpoint series will add virDOmainGetXMLDesc(, VIR_DOMAIN_XML_CHECKPOINTS) and virDomainCheckpointCreateXML(, VIR_DOMAIN_CHECKPOINT_CREATE_REDEFINE_LIST) with very similar code. Also available at: https://repo.or.cz/libvirt/ericb.git/shortlog/refs/tags/snapshot-bulk-v3 Changes since v2: - address lots of comments from John - split and rearrange some patches - incorporate remaining patches from my series fixing --redefine bugs - rebase to master 001/18:[down] 'qemu: Refactor snapshot check for _LIVE vs. _REDEFINE' 002/18:[down] 'snapshot: Rework virDomainSnapshotState enum' 003/18:[down] 'qemu: Use virDomainSnapshotState for switch statements' 004/18:[0017] [FC] 'snapshot: Give virDomainSnapshotDefFormat its own flags' 005/18:[0003] [FC] 'snapshot: Refactor virDomainSnapshotDefFormat' 006/18:[0029] [FC] 'snapshot: Add virDomainSnapshotObjListFormat' 007/18:[down] 'domain: Add struct for future domain format parameters' 008/18:[down] 'snapshot: Avoid latent use-after-free when cleaning snapshots' 009/18:[0071] [FC] 'domain: Expand virDomainDefFormatInternal with snapshots' 010/18:[down] 'snapshot: Split out virDomainSnapshotRedefineValidate helper' 011/18:[down] 'snapshot: Add virDomainSnapshotObjListParse' 012/18:[0005] [FC] 'domain: Add VIR_DOMAIN_XML_SNAPSHOTS flag' 013/18:[0002] [FC] 'snapshot: Add VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE_LIST flag' 014/18:[0018] [FC] 'virsh: Expose bulk snapshot dumpxml/redefine' 015/18:[0010] [FC] 'test: Implement bulk snapshot operations' 016/18:[down] 'qemu: Factor out qemuDomainSnapshotValidate() helper' 017/18:[down] 'qemu: Const-correct snapshot directory name' 018/18:[0033] [FC] 'qemu: Implement bulk snapshot operations' Eric Blake (18): qemu: Refactor snapshot check for _LIVE vs. _REDEFINE snapshot: Rework virDomainSnapshotState enum qemu: Use virDomainSnapshotState for switch statements snapshot: Give virDomainSnapshotDefFormat its own flags snapshot: Refactor virDomainSnapshotDefFormat snapshot: Add virDomainSnapshotObjListFormat domain: Add struct for future domain format parameters snapshot: Avoid latent use-after-free when cleaning snapshots domain: Expand virDomainDefFormatInternal with snapshots snapshot: Split out virDomainSnapshotRedefineValidate helper snapshot: Add virDomainSnapshotObjListParse domain: Add VIR_DOMAIN_XML_SNAPSHOTS flag snapshot: Add VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE_LIST flag virsh: Expose bulk snapshot dumpxml/redefine test: Implement bulk snapshot operations qemu: Factor out qemuDomainSnapshotValidate() helper qemu: Const-correct snapshot directory name qemu: Implement bulk snapshot operations include/libvirt/libvirt-domain-snapshot.h | 3 + include/libvirt/libvirt-domain.h | 1 + src/conf/domain_conf.h | 21 +- src/conf/snapshot_conf.h | 47 +- src/qemu/qemu_domain.h | 2 +- src/conf/domain_conf.c | 69 ++- src/conf/snapshot_conf.c | 513 ++++++++++++++++------ src/esx/esx_driver.c | 1 - src/libvirt-domain-snapshot.c | 23 +- src/libvirt-domain.c | 8 +- src/libvirt_private.syms | 3 + src/network/bridge_driver.c | 2 +- src/qemu/qemu_domain.c | 47 +- src/qemu/qemu_driver.c | 234 ++++++---- src/test/test_driver.c | 52 ++- src/vbox/vbox_common.c | 13 +- src/vz/vz_driver.c | 3 +- tests/domainsnapshotxml2xmltest.c | 16 +- tools/virsh-domain.c | 7 + tools/virsh-snapshot.c | 14 + tools/virsh.pod | 18 +- 21 files changed, 790 insertions(+), 307 deletions(-) -- 2.20.1 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
