ceph: support idmapped mounts
Affects | Status | Importance | Assigned to | Milestone | ||
---|---|---|---|---|---|---|
linux (Ubuntu) | Status tracked in Mantic | |||||
Mantic |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
Now that zfs supports idmapped mounts the only user of shiftfs remains ceph.
However a patch set has been posted upstream to enable such feature also in ceph:
https:/
This is also maintained in this github repository:
https:/
Include this patch in our mantic kernel, so that the LXD team can do some testing to see if we can get rid of shiftfs and rely completely on upstream idmapped mounts.
[Test case]
Create an LXD container using a ceph backend, disable shiftfs and verify if everything is still working (LXD team will provide a proper test case for this).
[Fix]
Apply idmapped mounts patch set from:
https:/
[Regression potential]
This patch set is still not upstream and still experimental, therefore we may experience regression or system crashes in systems that are using the ceph filesystem.
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 2032959
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.