[PATCH v4] xfs: check for possible overflow in xfs_ioc_trim

[Tomas Racek]

Forwarding to maintainers.

----- Original Message -----
> On Tue, Aug 14, 2012 at 10:35:04AM +0200, Tomas Racek wrote:
> > If range.start or range.minlen is bigger than filesystem size,
> > return
> > invalid value error. This fixes possible overflow in BTOBB macro
> > when
> > passed value was nearly ULLONG_MAX.
> > 
> > Signed-off-by: Tomas Racek <tracek at redhat.com>
> 
> looks ok to me.
> 
> Reviewed-by: Dave Chinner <dchinner at redhat.com>
> --
> Dave Chinner
> david at fromorbit.com
>