Merge tag 'keys-fixes-20150107' of git://

Pull keyrings fixes from David Howells:
 "Two fixes:

   - Fix for the order in which things are done during key garbage
     collection to prevent named keyrings causing a crash

   - Fix assoc_array to explicitly #include rcupdate.h to prevent
     compilation errors under certain circumstances"

* tag 'keys-fixes-20150107' of git://
  assoc_array: Include rcupdate.h for call_rcu() definition
  KEYS: close race between key lookup and freeing