[PATCH RESEND] ubifs: Introduce a mount option of force_atime.

[Artem Bityutskiy]

On Thu, 2015-06-25 at 18:10 +0800, Dongsheng Yang wrote:
>  > -o - default behavior (no atime)
>  > -o relatime - relative atime support
> 
> We would find both of them are MS_RELATIME set. But we
> want to do different thing in these cases. So I introduced
> the force_atime. Then:

Oh, do you know where exactly the default MS_RELATIME gets set?