Aggregate slave device stats into the stats for master.

But do so by adding new fields in the stats line.
We dont want the existing output format to get clobbered.
The new fields in master device line which contain
aggregated stats start with "aggr".

Signed-off-by: Shehjar Tikoo <shehjart@gelato.unsw.edu.au>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
1 file changed