Eric Lee / smarc-fsl-linux-kernel

25 Mar, 2010

1 commit

27 Dec, 2009

3 commits

  • 8beb9ab6c   llc: convert llc_sap_list to RCU ... Browse Code »

    Signed-off-by: Octavian Purdila
    Signed-off-by: David S. Miller

    Octavian Purdila
     
  • 52d58aef5   llc: replace the socket list with a local address based hash ... Browse Code »

    For the cases where a lot of interfaces are used in conjunction with a
    lot of LLC sockets bound to the same SAP, the iteration of the socket
    list becomes prohibitively expensive.

    Replacing the list with a a local address based hash significantly
    improves the bind and listener lookup operations as well as the
    datagram delivery.

    Connected sockets delivery is also improved, but this patch does not
    address the case where we have lots of sockets with the same local
    address connected to different remote addresses.

    In order to keep the socket sanity checks alive and fast a socket
    counter was added to the SAP structure.

    Signed-off-by: Octavian Purdila
    Signed-off-by: David S. Miller

    Octavian Purdila
     
  • b76f5a842   llc: convert the socket list to RCU locking ... Browse Code »

    For the reclamation phase we use the SLAB_DESTROY_BY_RCU mechanism,
    which require some extra checks in the lookup code:

    a) If the current socket was released, reallocated & inserted in
    another list it will short circuit the iteration for the current list,
    thus we need to restart the lookup.

    b) If the current socket was released, reallocated & inserted in the
    same list we just need to recheck it matches the look-up criteria and
    if not we can skip to the next element.

    In this case there is no need to restart the lookup, since sockets are
    inserted at the start of the list and the worst that will happen is
    that we will iterate throught some of the list elements more then
    once.

    Note that the /proc and multicast delivery was not yet converted to
    RCU, it still uses spinlocks for protection.

    Signed-off-by: Octavian Purdila
    Signed-off-by: David S. Miller

    Octavian Purdila
     

10 Mar, 2009

1 commit

01 Feb, 2009

1 commit

29 Mar, 2008

2 commits

11 Oct, 2007

1 commit

  • 881d966b4   [NET]: Make the device list and device lookups per namespace. ... Browse Code »

    This patch makes most of the generic device layer network
    namespace safe. This patch makes dev_base_head a
    network namespace variable, and then it picks up
    a few associated variables. The functions:
    dev_getbyhwaddr
    dev_getfirsthwbytype
    dev_get_by_flags
    dev_get_by_name
    __dev_get_by_name
    dev_get_by_index
    __dev_get_by_index
    dev_ioctl
    dev_ethtool
    dev_load
    wireless_process_ioctl

    were modified to take a network namespace argument, and
    deal with it.

    vlan_ioctl_set and brioctl_set were modified so their
    hooks will receive a network namespace argument.

    So basically anthing in the core of the network stack that was
    affected to by the change of dev_base was modified to handle
    multiple network namespaces. The rest of the network stack was
    simply modified to explicitly use &init_net the initial network
    namespace. This can be fixed when those components of the network
    stack are modified to handle multiple network namespaces.

    For now the ifindex generator is left global.

    Fundametally ifindex numbers are per namespace, or else
    we will have corner case problems with migration when
    we get that far.

    At the same time there are assumptions in the network stack
    that the ifindex of a network device won't change. Making
    the ifindex number global seems a good compromise until
    the network stack can cope with ifindex changes when
    you change namespaces, and the like.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     

04 May, 2007

1 commit

  • 7562f876c   [NET]: Rework dev_base via list_head (v3) ... Browse Code »

    Cleanup of dev_base list use, with the aim to simplify making device
    list per-namespace. In almost every occasion, use of dev_base variable
    and dev->next pointer could be easily replaced by for_each_netdev
    loop. A few most complicated places were converted to using
    first_netdev()/next_netdev().

    Signed-off-by: Pavel Emelianov
    Acked-by: Kirill Korotaev
    Signed-off-by: David S. Miller

    Pavel Emelianov
     

22 Jul, 2006

1 commit

21 Mar, 2006

1 commit

22 Sep, 2005

2 commits

30 Aug, 2005

1 commit

  • f2ccd8fa0   [NET]: Kill skb->real_dev ... Browse Code »

    Bonding just wants the device before the skb_bond()
    decapsulation occurs, so simply pass that original
    device into packet_type->func() as an argument.

    It remains to be seen whether we can use this same
    exact thing to get rid of skb->input_dev as well.

    Signed-off-by: David S. Miller

    David S. Miller
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds