27678098980
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Ran 17 Jun 2026 09:07AM UTC

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Run time 1min

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Committed 17 Jun 2026 08:55AM UTC coverage: 80.459%. Remained the same

Build # 27678098980

Build Type

push

github

Committed by

web-flow

Commit Message

Implement Better VM revert using VDI revert (26.1-lcm) (#7116)

This PR contains the changes needed to implement the proposal shown in
https://github.com/xapi-project/xen-api/blob/master/doc/content/design/snapshot-revert.md

Please note that the storage backends need to implement VDI_REVERT in
order to benefit from this change.

The fallback logic to the previous method complicates the implementation
quite a bit, although it's made a bit more manageable using sets.
The complexity comes from the current infrastructure to clone and
delete, which mixes VBDs and VDIs, and that two VMs are related: the
'live' or 'destination' VM and the snapshot VM.

Note that only disks are affected by the change, and both CDs and
suspend VDIs are treated the same way as before.

There's one change in user-visible behaviour: now the UUID of the VDIs
do not change when reverting if VDI.revert is used.

This PR is stacked on top of
https://github.com/xapi-project/xen-api/pull/7103

Coverage Stats

3504 of 4355 relevant lines covered (80.46%)

0.8 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	python3.11 - 27678098980.1	17 Jun 2026 09:07AM UTC	34	80.46	GitHub Action Run

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