[PATCH][WIP] populate superblock uuid at mount time

[Jeremy Allison]

On Fri, Mar 29, 2024 at 01:30:42AM -0500, Steve French wrote:
>In order to get the unique id for the volume (the 8 byte
>VolumeSerialNumber) we need to issue a QUERY_INFO level 59
>(FILE_ID_INFORMATION).  Today we only query the older 4 byte (not
>guaranteed to be unique serial number).   See section 2.4.21 of
>MS-FSCC.  Looks like Samba and ksmbd do not support this info level
>though - although Windows does support it.
>
>Any thoughts on ksmbd or Samba support for FILE_ID_INFORMATION query?
>
>See attached work in progress patch

2.4.21 wants a 64-bit volume ID, and a 128-bit file id.

How do you want this synthesized from a 64-bit inode ?

Can we get a standard mapping for this ?