1. Jun 19, 2009
    • David Teigland's avatar
      dlm: fix plock use-after-free · c78a87d0
      David Teigland authored
      Fix a regression from the original addition of nfs lock support
      586759f0
      
      .  When a synchronous
      (non-nfs) plock completes, the waiting thread will wake up and
      free the op struct.  This races with the user thread in
      dev_write() which goes on to read the op's callback field to
      check if the lock is async and needs a callback.  This check
      can happen on the freed op.  The fix is to note the callback
      value before the op can be freed.
      
      Signed-off-by: default avatarDavid Teigland <teigland@redhat.com>
      c78a87d0
  2. Jun 18, 2009
  3. Jun 17, 2009