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]>
ceph · Nov 19, 2024 · d457840 · d457840
1 parent eea64fe
commit d457840
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/internal/rbd/controllerserver.go b/internal/rbd/controllerserver.go
@@ -461,9 +461,9 @@ func flattenParentImage(
 	hardLimit := rbdHardMaxCloneDepth
 	softLimit := rbdSoftMaxCloneDepth
 	if rbdVol != nil {
-		// choosing 2, since cloning image creates a temp clone and a final clone which
-		// will add a total depth of 2.
-		const depthToAvoidFlatten = 2
+		// choosing 3, since cloning image creates a temp clone and a final clone which
+		// will add a total depth of 2 and the parent image itself adds one depth.
+		const depthToAvoidFlatten = 3
 		if rbdHardMaxCloneDepth > depthToAvoidFlatten {
 			hardLimit = rbdHardMaxCloneDepth - depthToAvoidFlatten
 		}