1 files changed, 6 insertions, 31 deletions

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a471f3bb713e..981f9aa43353 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -65,7 +65,11 @@ struct rcu_ctrlblk {
         long    cur;            /* Current batch number.                      */
         long    completed;      /* Number of the last completed batch         */
         int     next_pending;   /* Is the next batch already waiting?         */
-} ____cacheline_maxaligned_in_smp;
+
+        spinlock_t      lock    ____cacheline_internodealigned_in_smp;
+        cpumask_t       cpumask; /* CPUs that need to switch in order    */
+                                 /* for current batch to proceed.        */
+} ____cacheline_internodealigned_in_smp;
 
 /* Is batch a before batch b ? */
 static inline int rcu_batch_before(long a, long b)
@@ -125,36 +129,7 @@ static inline void rcu_bh_qsctr_inc(int cpu)
         rdp->passed_quiesc = 1;
 }
 
-static inline int __rcu_pending(struct rcu_ctrlblk *rcp,
-                                                struct rcu_data *rdp)
-{
-        /* This cpu has pending rcu entries and the grace period
-         * for them has completed.
-         */
-        if (rdp->curlist && !rcu_batch_before(rcp->completed, rdp->batch))
-                return 1;
-
-        /* This cpu has no pending entries, but there are new entries */
-        if (!rdp->curlist && rdp->nxtlist)
-                return 1;
-
-        /* This cpu has finished callbacks to invoke */
-        if (rdp->donelist)
-                return 1;
-
-        /* The rcu core waits for a quiescent state from the cpu */
-        if (rdp->quiescbatch != rcp->cur || rdp->qs_pending)
-                return 1;
-
-        /* nothing to do */
-        return 0;
-}
-
-static inline int rcu_pending(int cpu)
-{
-        return __rcu_pending(&rcu_ctrlblk, &per_cpu(rcu_data, cpu)) ||
-                __rcu_pending(&rcu_bh_ctrlblk, &per_cpu(rcu_bh_data, cpu));
-}
+extern int rcu_pending(int cpu);
 
 /**
  * rcu_read_lock - mark the beginning of an RCU read-side critical section.