• Paul E. McKenney's avatar
    [PATCH] RCU: clean up a few remaining synchronize_kernel() calls · b2b18660
    Paul E. McKenney authored
    
    
    2.6.12-rc6-mm1 has a few remaining synchronize_kernel()s, some (but not
    all) in comments.  This patch changes these synchronize_kernel() calls (and
    comments) to synchronize_rcu() or synchronize_sched() as follows:
    
    - arch/x86_64/kernel/mce.c mce_read(): change to synchronize_sched() to
      handle races with machine-check exceptions (synchronize_rcu() would not cut
      it given RCU implementations intended for hardcore realtime use.
    
    - drivers/input/serio/i8042.c i8042_stop(): change to synchronize_sched() to
      handle races with i8042_interrupt() interrupt handler.  Again,
      synchronize_rcu() would not cut it given RCU implementations intended for
      hardcore realtime use.
    
    - include/*/kdebug.h comments: change to synchronize_sched() to handle races
      with NMIs.  As before, synchronize_rcu() would not cut it...
    
    - include/linux/list.h comment: change to synchronize_rcu(), since this
      comment is for list_del_rcu().
    
    - security/keys/key.c unregister_key_type(): change to synchronize_rcu(),
      since this is interacting with RCU read side.
    
    - security/keys/process_keys.c install_session_keyring(): change to
      synchronize_rcu(), since this is interacting with RCU read side.
    Signed-off-by: default avatar"Paul E. McKenney" <paulmck@us.ibm.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    b2b18660