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Fixes related to flatten operation in PVC restored from snapshot #4960

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Fixes related to flatten operation in PVC restored from snapshot #4960

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Commits on Nov 14, 2024

  1. rbd: remove checkFlatten() function 

    CephCSI should not flatten image that can be mounted
for use by the user.
`checkFlatten()` was called in a recovery code flow
of PVC restored from snapshot and was missed while
refractoring in ceph#2900

refer: ceph#2900

Signed-off-by: Rakshith R <[email protected]>
    @Rakshith-R
    Rakshith-R committed Nov 14, 2024
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  2. rbd: set depthToAvoidFlatten to 3 during PVC-PVC clone 

    During PVC-PVC clone creation, parent of the datasource
image is flattened after checking for clone depth.
We need to account for data source image as well since
we're calculating depth from the parent image.
depthToAvoidFlatten = 3(datasource image + temp + final clone)

Signed-off-by: Rakshith R <[email protected]>
    @Rakshith-R
    Rakshith-R committed Nov 14, 2024
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