• Eric Dumazet's avatar
    net: introduce skb_try_coalesce() · bad43ca8
    Eric Dumazet authored
    Move tcp_try_coalesce() protocol independent part to
    skb_try_coalesce().
    
    skb_try_coalesce() can be used in IPv4 defrag and IPv6 reassembly,
    to build optimized skbs (less sk_buff, and possibly less 'headers')
    
    skb_try_coalesce() is zero copy, unless the copy can fit in destination
    header (its a rare case)
    
    kfree_skb_partial() is also moved to net/core/skbuff.c and exported,
    because IPv6 will need it in patch (ipv6: use skb coalescing in
    reassembly).
    Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
    Cc: Alexander Duyck <alexander.h.duyck@intel.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    bad43ca8
skbuff.c 84.9 KB