Jesper Dangaard Brouer <brouer@xxxxxxxxxx> writes: > Knowing the memory size backing the packet/xdp_frame data area, and > knowing it already have reserved room for skb_shared_info, simplifies > using build_skb significantly. > > With this change we no-longer lie about the SKB truesize, but more > importantly a significant larger skb_tailroom is now provided, e.g. when > drivers uses a full PAGE_SIZE. This extra tailroom (in linear area) can be > used by the network stack when coalescing SKBs (e.g. in skb_try_coalesce, > see TCP cases where tcp_queue_rcv() can 'eat' skb). > > Signed-off-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> Acked-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
