Fixed copy not to potentially mess up buffers host mem allocation + readability improvement
Fixed copy not to potentially mess up buffers host mem allocation + readability improvement

pocl/pocl,rjodin/pocl,pocl/pocl,rjodin/pocl,pocl/pocl,Oblomov/pocl,Oblomov/pocl,jrprice/pocl,Oblomov/pocl,jrprice/pocl,rjodin/pocl,Oblomov/pocl,franz/pocl,jrprice/pocl,franz/pocl,pocl/pocl,franz/pocl,franz/pocl,pocl/pocl,franz/pocl,Oblomov/pocl,rjodin/pocl,jrprice/pocl