nvmetcli: Unable to run clear/restore

[Tony Asleson <tasleson@redhat.com>]

While experimenting with nvmetcli I'm unable to run clear or restore.

Using master branch against Fedora 31, 5.5.9-200.fc31.x86_64

# ./nvmetcli clear
Traceback (most recent call last):
  File "./nvmetcli", line 740, in <module>
    main()
  File "./nvmetcli", line 722, in main
    funcs[sys.argv[1]](savefile)
  File "./nvmetcli", line 689, in clear
    nvme.Root().clear_existing()
  File "/root/projects/nvmetcli/nvmet/nvme.py", line 315, in clear_existing
    p.delete()
  File "/root/projects/nvmetcli/nvmet/nvme.py", line 677, in delete
    a.delete()
  File "/root/projects/nvmetcli/nvmet/nvme.py", line 200, in delete
    os.rmdir(self.path)
PermissionError: [Errno 1] Operation not permitted:
'/sys/kernel/config/nvmet/ports/0/ana_groups/1'

# ./nvmetcli restore
No saved config file at None, ok, exiting

I just posted a patch series, with those changes when I repeat the
restore I get

# ./nvmetcli restore
Error processing config file at None, error [Errno 1] Operation not
permitted: '/sys/kernel/config/nvmet/ports/0/ana_groups/1', exiting

Same error when trying to run `make test` eg.

[Errno 1] Operation not permitted:
'/sys/kernel/config/nvmet/ports/0/ana_groups/1'

Do I have a mismatch between kernel and user space here or am I missing
something?

Thanks!
-Tony



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