rcu: Add synchronize_sched_expedited() rcutorture doc + updates

This patch updates the rcutorture documentation to include
updated output format.  It also brings the RCU documentation up
to date.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: akpm@linux-foundation.org
Cc: torvalds@linux-foundation.org
Cc: davem@davemloft.net
Cc: dada1@cosmosbay.com
Cc: zbr@ioremap.net
Cc: jeff.chua.linux@gmail.com
Cc: paulus@samba.org
Cc: laijs@cn.fujitsu.com
Cc: jengelh@medozas.de
Cc: r000n@r000n.net
Cc: benh@kernel.crashing.org
Cc: mathieu.desnoyers@polymtl.ca
LKML-Reference: <12459460983193-git-send-email->
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 11 insertions, 3 deletions

diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index 96170824a717..97ded2432c59 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.txt
@@ -785,6 +785,7 @@ RCU pointer/list traversal:
         rcu_dereference
         list_for_each_entry_rcu
         hlist_for_each_entry_rcu
+        hlist_nulls_for_each_entry_rcu
 
         list_for_each_continue_rcu      (to be deprecated in favor of new
                                          list_for_each_entry_continue_rcu)
@@ -807,19 +808,23 @@ RCU:	Critical sections	Grace period		Barrier
 
         rcu_read_lock           synchronize_net         rcu_barrier
         rcu_read_unlock         synchronize_rcu
+                                synchronize_rcu_expedited
                                 call_rcu
 
 
 bh:     Critical sections       Grace period            Barrier
 
         rcu_read_lock_bh        call_rcu_bh             rcu_barrier_bh
-        rcu_read_unlock_bh
+        rcu_read_unlock_bh      synchronize_rcu_bh
+                                synchronize_rcu_bh_expedited
 
 
 sched:  Critical sections       Grace period            Barrier
 
-        [preempt_disable]       synchronize_sched       rcu_barrier_sched
-        [and friends]           call_rcu_sched
+        rcu_read_lock_sched     synchronize_sched       rcu_barrier_sched
+        rcu_read_unlock_sched   call_rcu_sched
+        [preempt_disable]       synchronize_sched_expedited
+        [and friends]
 
 
 SRCU:   Critical sections       Grace period            Barrier
@@ -827,6 +832,9 @@ SRCU:	Critical sections	Grace period		Barrier
         srcu_read_lock          synchronize_srcu        N/A
         srcu_read_unlock
 
+SRCU:   Initialization/cleanup
+        init_srcu_struct
+        cleanup_srcu_struct
 
 See the comment headers in the source code (or the docbook generated
 from them) for more information.