[Ocfs2-devel] [PATCH 1/4] quota: Don't store flags for v2 quota format

[Christoph Hellwig]

On Thu, Jan 15, 2015 at 11:13:10AM +0100, Jan Kara wrote:
>   Hum, I'm not sure I follow you. Current kernels will store any 32-bit
> number user sets in flags field. So if we wanted to be 100% safe, we'd have
> to just ignore that field. Which isn't currently a problem since quota code
> doesn't use the field for anything (it was added just for future
> extensions). But since I'm pretty certain noone actually relies on values
> of that field, I though we could just get away with forcibly zeroing the
> field now and if there's a need to use the field in a few years, we could
> start using it.

Oh, I misread the code and your description.  I thought we would just
store any potentially valid in-core flag on disk.

I guess for now the best case would be to stop storing anything, and
then just make an educated decision if/when we need a flags field.