From mboxrd@z Thu Jan  1 00:00:00 1970
From: hch@lst.de (Christoph Hellwig)
Date: Sat, 6 Oct 2018 14:43:53 +0200
Subject: [PATCH] nvmetcli: ANA configuration support
In-Reply-To: <20180727110859.4212-1-hare@suse.de>
References: <20180727110859.4212-1-hare@suse.de>
Message-ID: <20181006124353.GA8324@lst.de>

I just wanted to apply this in preparation of a new nvmetcli release
once Linux 4.19 is released with ANA support, but the code does not
seem to work well on kernel without multipath support.  E.g.:

Traceback (most recent call last):
  File "./nvmetcli", line 735, in <module>
    main()
  File "./nvmetcli", line 717, in main
    funcs[sys.argv[1]](savefile)
  File "./nvmetcli", line 684, in clear
    nvme.Root().clear_existing()
  File "/root/nvmetcli/nvmet/nvme.py", line 315, in clear_existing
    p.delete()
  File "/root/nvmetcli/nvmet/nvme.py", line 676, in delete
    a.delete()
  File "/root/nvmetcli/nvmet/nvme.py", line 200, in delete
    os.rmdir(self.path)
PermissionError: [Errno 1] Operation not permitted: '/sys/kernel/config/nvmet/ports/2/ana_groups/1'

The new ANA code will probably need similar exception handling as the
inline_data_size attribute.