On Mon, 26 Nov 2012 15:56:52 +0800 Jason Wang <[email protected]> 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 <[email protected]> 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 [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
