[24.0 backport] volume/local: Don't unmount, restore mounted status #46366
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On startup all local volumes were unmounted as a cleanup mechanism for the non-clean exit of the last engine process.
This caused live-restored volumes that used special volume opt mount flags to be broken. While the refcount was restored, the _data directory was just unmounted, so all new containers mounting this volume would just have the access to the empty _data directory instead of the real volume.
With this patch, the mountpoint isn't unmounted. Instead, if the volume is already mounted, just mark it as mounted, so the next time Mount is called only the ref count is incremented, but no second attempt to mount it is performed.
- What I did
Fixed the case where live-restore of volumes that specified custom volume opts wouldn't work properly.
- How I did it
See commits.
- How to verify it
CI
- Description for the changelog
- A picture of a cute animal (not mandatory but encouraged)