On Sun, 2016-05-08 at 22:07 -0700, Cong Wang wrote: > On Sun, May 8, 2016 at 9:31 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: > > On Sun, 2016-05-08 at 21:14 -0700, Cong Wang wrote: > > > >> So when the packet is dropped due to memory over limit, should > >> we return failure for this case? Or I miss anything? > > > > Same behavior than before. > > > > If we dropped some packets of this flow, we return NET_XMIT_CN > > I think for the limited memory case, the upper layer is supposed > to stop sending more packets when hitting the limit.
They doe. NET_XMIT_CN for example aborts IP fragmentation. TCP flows will also instantly react.
