1. 22 Aug, 2008 21 commits
  2. 21 Aug, 2008 2 commits
  3. 19 Aug, 2008 1 commit
    • David S. Miller's avatar
      pkt_sched: Prevent livelock in TX queue running. · 195648bb
      David S. Miller authored
      If dev_deactivate() is trying to quiesce the queue, it
      is theoretically possible for another cpu to livelock
      trying to process that queue.  This happens because
      dev_deactivate() grabs the queue spinlock as it checks
      the queue state, whereas net_tx_action() does a trylock
      and reschedules the qdisc if it hits the lock.
      This breaks the livelock by adding a check on
      __QDISC_STATE_DEACTIVATED to net_tx_action() when
      the trylock fails.
      Based upon feedback from Herbert Xu and Jarek Poplawski.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  4. 18 Aug, 2008 16 commits