Eric Lee / smarc-fsl-linux-kernel

10 Oct, 2013

1 commit

  • 634fb979e   inet: includes a sock_common in request_sock ... Browse Code »

    TCP listener refactoring, part 5 :

    We want to be able to insert request sockets (SYN_RECV) into main
    ehash table instead of the per listener hash table to allow RCU
    lookups and remove listener lock contention.

    This patch includes the needed struct sock_common in front
    of struct request_sock

    This means there is no more inet6_request_sock IPv6 specific
    structure.

    Following inet_request_sock fields were renamed as they became
    macros to reference fields from struct sock_common.
    Prefix ir_ was chosen to avoid name collisions.

    loc_port -> ir_loc_port
    loc_addr -> ir_loc_addr
    rmt_addr -> ir_rmt_addr
    rmt_port -> ir_rmt_port
    iif -> ir_iif

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

09 Oct, 2013

1 commit

  • efe4208f4   ipv6: make lookups simpler and faster ... Browse Code »

    TCP listener refactoring, part 4 :

    To speed up inet lookups, we moved IPv4 addresses from inet to struct
    sock_common

    Now is time to do the same for IPv6, because it permits us to have fast
    lookups for all kind of sockets, including upcoming SYN_RECV.

    Getting IPv6 addresses in TCP lookups currently requires two extra cache
    lines, plus a dereference (and memory stall).

    inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6

    This patch is way bigger than its IPv4 counter part, because for IPv4,
    we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6,
    it's not doable easily.

    inet6_sk(sk)->daddr becomes sk->sk_v6_daddr
    inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr

    And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr
    at the same offset.

    We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic
    macro.

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

01 Jul, 2006

1 commit

04 Jan, 2006

1 commit