Re: [PATCH 0/4] btrfs: sysfs and unsupported temp-fsid features for clones

[Anand Jain <anand.jain@oracle.com>]

On 10/6/23 23:07, David Sterba wrote:
> On Wed, Oct 04, 2023 at 11:00:23PM +0800, Anand Jain wrote:
>> Seed and device-add are the two features that must be unsupported
>> if a cloned device is using temp-fsid to mount, as they conflict
>> with multi-device functionality.
>>
>> Additionally, add sysfs files for the temp-fsid feature.
>>
>> Anand Jain (4):
>>    btrfs: comment for temp-fsid, fsid, and metadata_uuid
>>    btrfs: disable seed feature for temp-fsid
>>    btrfs: disable the device add feature for temp-fsid
>>    btrfs: show temp_fsid feature in sysfs
> 
> Added to misc-next, thanks. The eventual change to the sysfs file can be
> done later.
> 
> How are we going to proceed with the patch from Guilherme?

The last step is to ensure that the temp-fsid feature is restricted
with the temp-fsid superblock flag. Guilherme's patches
(kernel, mkfs, and tune) already handle it but need a rebase.
Can Guilherme send an RFC patch for feedback from others and
copy suggested-by. Because, I haven't found a compelling reason
for the restriction, except to improve the user experience.

His fstests patch will be accepted. And progressively we should
add more coverage when the fstests configuration does not include
the temp-fsid environment.

Lastly, in fact even for this patchset:

   Co-developed-by: Guilherme G. Piccoli <gpiccoli@igalia.com>

Thanks, Anand