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cephfs: added support for snapshot-backed volumes

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This commit implements most of
docs/design/proposals/cephfs-snapshot-shallow-ro-vol.md design document;
specifically (de-)provisioning of snapshot-backed volumes, mounting such
volumes as well as mounting pre-provisioned snapshot-backed volumes.

Signed-off-by: Robert Vasek <robert.vasek@cern.ch>
This commit is contained in:
Robert Vasek
2022-04-06 15:26:07 +02:00
committed by mergify[bot]
parent 0807fd2e6c
commit fd7559a903
7 changed files with 710 additions and 107 deletions
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4
internal/cephfs/fuserecovery.go
View File

@ -192,7 +192,7 @@ func (ns *NodeServer) tryRestoreFuseMountsInNodePublish(
// Unmount and mount the volume.
if stagingTargetMs != msMounted {
if err := mounter.UnmountVolume(ctx, stagingTargetPath); err != nil {
if err := mounter.UnmountAll(ctx, stagingTargetPath); err != nil {
return err
}
@ -269,5 +269,5 @@ func (ns *NodeServer) tryRestoreFuseMountInNodeStage(
// Restoration here means only unmounting the volume.
// NodeStageVolume should take care of the rest.
return mounter.UnmountVolume(ctx, stagingTargetPath)
return mounter.UnmountAll(ctx, stagingTargetPath)
}