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rcu: fix tracing bug thinko on boost-balk attribution

The rcu_initiate_boost_trace() function mis-attributed refusals to
initiate RCU priority boosting that were in fact due to its not yet
being time to boost.  This patch fixes the faulty comparison.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Paul E. McKenney 14 年之前
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a9f4793d89
共有 1 個文件被更改,包括 1 次插入1 次删除
  1. 1 1
      kernel/rcutree_plugin.h

+ 1 - 1
kernel/rcutree_plugin.h

@@ -1086,7 +1086,7 @@ static void rcu_initiate_boost_trace(struct rcu_node *rnp)
 	else if (rnp->gp_tasks != NULL && rnp->qsmask != 0)
 	else if (rnp->gp_tasks != NULL && rnp->qsmask != 0)
 		rnp->n_balk_notblocked++;
 		rnp->n_balk_notblocked++;
 	else if (rnp->gp_tasks != NULL &&
 	else if (rnp->gp_tasks != NULL &&
-		 ULONG_CMP_GE(jiffies, rnp->boost_time))
+		 ULONG_CMP_LT(jiffies, rnp->boost_time))
 		rnp->n_balk_notyet++;
 		rnp->n_balk_notyet++;
 	else
 	else
 		rnp->n_balk_nos++;
 		rnp->n_balk_nos++;