use generic optimization framework for md_swap..
use generic optimization framework for md_swap..

Takishima/bart,sdimoudi/bart,mjacob75/bart,Takishima/bart,mjacob75/bart,Takishima/bart,sidward/bart,sidward/bart,sidward/bart,mrirecon/bart,sidward/bart,sidward/bart,mrirecon/bart,mjacob75/bart,Takishima/bart,mjacob75/bart,sdimoudi/bart,sdimoudi/bart,Takishima/bart,mrirecon/bart,sdimoudi/bart,mjacob75/bart,mrirecon/bart,sdimoudi/bart,mrirecon/bart