On Fri, 2010-09-24 at 15:04 -0700, Ira W. Snyder wrote: > On Fri, Sep 24, 2010 at 02:53:14PM -0700, Dan Williams wrote: > > What about overrun or underrun do we not care if src_total != dst_total? > > > > Otherwise looks ok. > > > > I don't know if we should care about that. The algorithm handles that > case just fine. It copies the maximum amount it can, which is exactly > min(src_total, dst_total). Whichever scatterlist runs out of entries > first is the shortest. > > As a real world example, my driver verifies that both scatterlists have > exactly the right number of bytes available before trying to program the > hardware.
Ok, just handle the prep failure and I think we are good to go. -- Dan _______________________________________________ Linuxppc-dev mailing list [email protected] https://lists.ozlabs.org/listinfo/linuxppc-dev
