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2b41a4767f
the new workflow is:
1)
PVE::Storage::volume_snapshot: rename the current to snap
+ allocate the new current with snap backing
(the qemu process have still the inode opened)
2) replace the current to snap in the blockdev graph with reopen
3) add a new current blockdev
3) use block-snapshot to replace the active image with the new current blockdev
with the qemu
also:
move PVE::Storage::volume_rename outside blockdev_replace,
and rename 'blockdev_rename()' to 'blockdev_replace()'.
as we only replace/reopen the blockdev nodes now.
Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
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