rcu: Rename dynticks_completed to completed_fqs

This field is used whether or not CONFIG_NO_HZ is set, so the
old name of ->dynticks_completed is quite misleading.

Change to ->completed_fqs, given that it the value that
force_quiescent_state() is trying to drive the ->completed field
away from.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
LKML-Reference: <12578890423298-git-send-email->
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index ec007dd..26fc780 100644 (file)
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -187,7 +187,7 @@ static struct rcu_node *rcu_get_root(struct rcu_state *rsp)
  */
 static void dyntick_record_completed(struct rcu_state *rsp, long comp)
 {
-       rsp->dynticks_completed = comp;
+       rsp->completed_fqs = comp;
 }
 
 #ifdef CONFIG_SMP
@@ -197,7 +197,7 @@ static void dyntick_record_completed(struct rcu_state *rsp, long comp)
  */
 static long dyntick_recall_completed(struct rcu_state *rsp)
 {
-       return rsp->dynticks_completed;
+       return rsp->completed_fqs;
 }
 
 /*

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index ddb79ec..17a28a0 100644 (file)
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -264,6 +264,8 @@ struct rcu_state {
        long orphan_qlen;                       /* Number of orphaned cbs. */
        spinlock_t fqslock;                     /* Only one task forcing */
                                                /*  quiescent states. */
+       long    completed_fqs;                  /* Value of completed @ snap. */
+                                               /*  Protected by fqslock. */
        unsigned long jiffies_force_qs;         /* Time at which to invoke */
                                                /*  force_quiescent_state(). */
        unsigned long n_force_qs;               /* Number of calls to */
@@ -278,8 +280,6 @@ struct rcu_state {
        unsigned long jiffies_stall;            /* Time at which to check */
                                                /*  for CPU stalls. */
 #endif /* #ifdef CONFIG_RCU_CPU_STALL_DETECTOR */
-       long dynticks_completed;                /* Value of completed @ snap. */
-                                               /*  Protected by fqslock. */
 };
 
 #ifdef RCU_TREE_NONCORE