On Mon, 26 Nov 2012 15:56:52 +0800 Jason Wang <jasowang@xxxxxxxxxx> wrote: > Some deivces do not free the old tx skbs immediately after it has been sent > (usually in tx interrupt). One such example is virtio-net which optimizes for > virt and only free the possible old tx skbs during the next packet sending. This > would lead the pktgen to wait forever in the refcount of the skb if no other > pakcet will be sent afterwards. > > Solving this issue by introducing a new flag IFF_TX_SKB_FREE_DELAY which could > notify the pktgen that the device does not free skb immediately after it has > been sent and let it not to wait for the refcount to be one. > > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> Another alternative would be using skb_orphan() and skb->destructor. There are other cases where skb's are not freed right away. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
