RFC: deprecate allocation roundup size

[David Disseldorp]

On Tue, 18 Jun 2019 11:56:13 -0700, Christof Schmitt via samba-technical wrote:

> +1
> 
> I ran into the same problem. As this seems to be not necessary any more,
> deprecating it and removing it later seems sensible.

+1 from me too.

> Why are you proposing setting the default to 4k? We could just flag the
> parameter as deprecated and change the default to 0 and then remove it
> in a later release.

Agreed, leaving allocation sizes up to the client and underlying share
FS would make sense, unless there's a protocol detail which requires
rounding.

Cheers, David