1. 02 Apr, 2014 25 commits
  2. 30 Mar, 2014 4 commits
  3. 29 Mar, 2014 3 commits
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 981e893e
      Linus Torvalds authored
      Pull timer fix from Ingo Molnar:
       "A late breaking fix from John.  (The bug fixed has a hard lockup
        potential, but that was not observed, warnings were)"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        time: Revert to calling clock_was_set_delayed() while in irq context
      981e893e
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client · 0f2776e6
      Linus Torvalds authored
      Pull Ceph fix from Sage Weil:
       "This drops a bad assert that a few users have been hitting but we've
        only recently been able to track down"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
        rbd: drop an unsafe assertion
      0f2776e6
    • Alex Elder's avatar
      rbd: drop an unsafe assertion · 638c323c
      Alex Elder authored
      Olivier Bonvalet reported having repeated crashes due to a failed
      assertion he was hitting in rbd_img_obj_callback():
      
          Assertion failure in rbd_img_obj_callback() at line 2165:
      	rbd_assert(which >= img_request->next_completion);
      
      With a lot of help from Olivier with reproducing the problem
      we were able to determine the object and image requests had
      already been completed (and often freed) at the point the
      assertion failed.
      
      There was a great deal of discussion on the ceph-devel mailing list
      about this.  The problem only arose when there were two (or more)
      object requests in an image request, and the problem was always
      seen when the second request was being completed.
      
      The problem is due to a race in the window between setting the
      "done" flag on an object request and checking the image request's
      next completion value.  When the first object request completes, it
      checks to see if its successor request is marked "done", and if
      so, that request is also completed.  In the process, the image
      request's next_completion value is updated to reflect that both
      the first and second requests are completed.  By the time the
      second request is able to check the next_completion value, it
      has been set to a value *greater* than its own "which" value,
      which caused an assertion to fail.
      
      Fix this problem by skipping over any completion processing
      unless the completing object request is the next one expected.
      Test only for inequality (not >=), and eliminate the bad
      assertion.
      Tested-by: default avatarOlivier Bonvalet <ob@daevel.fr>
      Signed-off-by: default avatarAlex Elder <elder@linaro.org>
      Reviewed-by: default avatarSage Weil <sage@inktank.com>
      Reviewed-by: default avatarIlya Dryomov <ilya.dryomov@inktank.com>
      638c323c
  4. 28 Mar, 2014 8 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 49d8137a
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) We've discovered a common error in several networking drivers, they
          put VLAN offload features into ->vlan_features, which would suggest
          that they support offloading 2 or more levels of VLAN encapsulation.
          Not only do these devices not do that, but we don't have the
          infrastructure yet to handle that at all.
      
          Fixes from Vlad Yasevich.
      
       2) Fix tcpdump crash with bridging and vlans, also from Vlad.
      
       3) Some MAINTAINERS updates for random32 and bonding.
      
       4) Fix late reseeds of prandom generator, from Sasha Levin.
      
       5) Bridge doesn't handle stacked vlans properly, fix from Toshiaki
          Makita.
      
       6) Fix deadlock in openvswitch, from Flavio Leitner.
      
       7) get_timewait4_sock() doesn't report delay times correctly, fix from
          Eric Dumazet.
      
       8) Duplicate address detection and addrconf verification need to run in
          contexts where RTNL can be obtained.  Move them to run from a
          workqueue.  From Hannes Frederic Sowa.
      
       9) Fix route refcount leaking in ip tunnels, from Pravin B Shelar.
      
      10) Don't return -EINTR from non-blocking recvmsg() on AF_UNIX sockets,
          from Eric Dumazet.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (28 commits)
        vlan: Warn the user if lowerdev has bad vlan features.
        veth: Turn off vlan rx acceleration in vlan_features
        ifb: Remove vlan acceleration from vlan_features
        qlge: Do not propaged vlan tag offloads to vlans
        bridge: Fix crash with vlan filtering and tcpdump
        net: Account for all vlan headers in skb_mac_gso_segment
        MAINTAINERS: bonding: change email address
        MAINTAINERS: bonding: change email address
        ipv6: move DAD and addrconf_verify processing to workqueue
        tcp: fix get_timewait4_sock() delay computation on 64bit
        openvswitch: fix a possible deadlock and lockdep warning
        bridge: Fix handling stacked vlan tags
        bridge: Fix inabillity to retrieve vlan tags when tx offload is disabled
        vhost: validate vhost_get_vq_desc return value
        vhost: fix total length when packets are too short
        random32: avoid attempt to late reseed if in the middle of seeding
        random32: assign to network folks in MAINTAINERS
        net/mlx4_core: pass pci_device_id.driver_data to __mlx4_init_one during reset
        core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors
        vlan: Set hard_header_len according to available acceleration
        ...
      49d8137a
    • David S. Miller's avatar
      Merge branch 'vlan_offloads' · 5f2feca2
      David S. Miller authored
      Vlad Yasevich says:
      
      ====================
      Audit all drivers for correct vlan_features.
      
      Some drivers set vlan acceleration features in vlan_features.  This causes
      issues with Q-in-Q/802.1ad configurations.
      
      Audit all the drivers for correct vlan_features.  Fix broken ones.
      Add a warning to vlan code to help catch future offenders.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5f2feca2
    • Vlad Yasevich's avatar
      vlan: Warn the user if lowerdev has bad vlan features. · 2adb956b
      Vlad Yasevich authored
      Some drivers incorrectly assign vlan acceleration features to
      vlan_features thus causing issues for Q-in-Q vlan configurations.
      Warn the user of such cases.
      Signed-off-by: default avatarVlad Yasevich <vyasevic@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2adb956b
    • Vlad Yasevich's avatar
      veth: Turn off vlan rx acceleration in vlan_features · 3f8c707b
      Vlad Yasevich authored
      For completeness, turn off vlan rx acceleration in vlan_features so
      that it doesn't show up on q-in-q setups.
      Signed-off-by: default avatarVlad Yasevich <vyasevic@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3f8c707b
    • Vlad Yasevich's avatar
      ifb: Remove vlan acceleration from vlan_features · 8dd6e147
      Vlad Yasevich authored
      Do not include vlan acceleration features in vlan_features as that
      precludes correct Q-in-Q operation.
      Signed-off-by: default avatarVlad Yasevich <vyasevic@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8dd6e147
    • Vlad Yasevich's avatar
      qlge: Do not propaged vlan tag offloads to vlans · f6d1ac4b
      Vlad Yasevich authored
      qlge driver turns off NETIF_F_HW_CTAG_FILTER, but forgets to
      turn off HW_CTAG_TX and HW_CTAG_RX on vlan devices.  With the
      current settings, q-in-q will only generate a single vlan header.
      Remember to mask off CTAG_TX and CTAG_RX features in vlan_features.
      
      CC: Shahed Shaikh <shahed.shaikh@qlogic.com>
      CC: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
      CC: Ron Mercer <ron.mercer@qlogic.com>
      Signed-off-by: default avatarVlad Yasevich <vyasevic@redhat.com>
      Acked-by: default avatarJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f6d1ac4b
    • Vlad Yasevich's avatar
      bridge: Fix crash with vlan filtering and tcpdump · fc92f745
      Vlad Yasevich authored
      When the vlan filtering is enabled on the bridge, but
      the filter is not configured on the bridge device itself,
      running tcpdump on the bridge device will result in a
      an Oops with NULL pointer dereference.  The reason
      is that br_pass_frame_up() will bypass the vlan
      check because promisc flag is set.  It will then try
      to get the table pointer and process the packet based
      on the table.  Since the table pointer is NULL, we oops.
      Catch this special condition in br_handle_vlan().
      Reported-by: default avatarToshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
      CC: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
      Signed-off-by: default avatarVlad Yasevich <vyasevic@redhat.com>
      Acked-by: default avatarToshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fc92f745
    • Vlad Yasevich's avatar
      net: Account for all vlan headers in skb_mac_gso_segment · 53d6471c
      Vlad Yasevich authored
      skb_network_protocol() already accounts for multiple vlan
      headers that may be present in the skb.  However, skb_mac_gso_segment()
      doesn't know anything about it and assumes that skb->mac_len
      is set correctly to skip all mac headers.  That may not
      always be the case.  If we are simply forwarding the packet (via
      bridge or macvtap), all vlan headers may not be accounted for.
      
      A simple solution is to allow skb_network_protocol to return
      the vlan depth it has calculated.  This way skb_mac_gso_segment
      will correctly skip all mac headers.
      Signed-off-by: default avatarVlad Yasevich <vyasevic@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      53d6471c