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-rw-r--r--include/linux/rcupdate.h31
1 files changed, 1 insertions, 30 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 51747cd88d1a..a1d26cb28925 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -125,36 +125,7 @@ static inline void rcu_bh_qsctr_inc(int cpu)
125 rdp->passed_quiesc = 1; 125 rdp->passed_quiesc = 1;
126} 126}
127 127
128static inline int __rcu_pending(struct rcu_ctrlblk *rcp, 128extern int rcu_pending(int cpu);
129 struct rcu_data *rdp)
130{
131 /* This cpu has pending rcu entries and the grace period
132 * for them has completed.
133 */
134 if (rdp->curlist && !rcu_batch_before(rcp->completed, rdp->batch))
135 return 1;
136
137 /* This cpu has no pending entries, but there are new entries */
138 if (!rdp->curlist && rdp->nxtlist)
139 return 1;
140
141 /* This cpu has finished callbacks to invoke */
142 if (rdp->donelist)
143 return 1;
144
145 /* The rcu core waits for a quiescent state from the cpu */
146 if (rdp->quiescbatch != rcp->cur || rdp->qs_pending)
147 return 1;
148
149 /* nothing to do */
150 return 0;
151}
152
153static inline int rcu_pending(int cpu)
154{
155 return __rcu_pending(&rcu_ctrlblk, &per_cpu(rcu_data, cpu)) ||
156 __rcu_pending(&rcu_bh_ctrlblk, &per_cpu(rcu_bh_data, cpu));
157}
158 129
159/** 130/**
160 * rcu_read_lock - mark the beginning of an RCU read-side critical section. 131 * rcu_read_lock - mark the beginning of an RCU read-side critical section.