This makes it very similar to 'name'.
The difference if partly the intent for how user-space would use it,
and partly that set_uuid must *never* change, while you would probably
want name to be allowed to change.
> > u32 ctime
> Use some padding so you can go to 64bit times
Before or after? Or just make it 64bits of seconds now?
This brings up endian-ness? Should I assert 'little-endian' or should
the code check the endianness of the magic number and convert if
The former is less code which will be exercised more often, so it is
All values shall be little-endian and times shall be stored in 64
bits with the top 20 bits representing microseconds (so we & with
(1<<44)-1 to get seconds.
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