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

[Dave Chinner]

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