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rcu: Eliminate second argument of rcu_process_dyntick()
At this point, the second argument to all calls to rcu_process_dyntick() is a function of the same field of the structure passed in as the first argument, namely, rsp->gpnum-1. So propagate rsp->gpnum-1 to all uses of the second argument within rcu_process_dyntick() and then eliminate the second argument. 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: <12626465503786-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -1147,7 +1147,7 @@ void rcu_check_callbacks(int cpu, int user)
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* Returns 1 if the current grace period ends while scanning (possibly
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* because we made it end).
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*/
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static int rcu_process_dyntick(struct rcu_state *rsp, long lastcomp,
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static int rcu_process_dyntick(struct rcu_state *rsp,
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int (*f)(struct rcu_data *))
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{
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unsigned long bit;
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@ -1159,7 +1159,7 @@ static int rcu_process_dyntick(struct rcu_state *rsp, long lastcomp,
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rcu_for_each_leaf_node(rsp, rnp) {
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mask = 0;
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spin_lock_irqsave(&rnp->lock, flags);
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if (rnp->completed != lastcomp) {
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if (rnp->completed != rsp->gpnum - 1) {
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spin_unlock_irqrestore(&rnp->lock, flags);
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return 1;
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}
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@ -1173,7 +1173,7 @@ static int rcu_process_dyntick(struct rcu_state *rsp, long lastcomp,
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if ((rnp->qsmask & bit) != 0 && f(rsp->rda[cpu]))
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mask |= bit;
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}
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if (mask != 0 && rnp->completed == lastcomp) {
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if (mask != 0 && rnp->completed == rsp->gpnum - 1) {
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/* rcu_report_qs_rnp() releases rnp->lock. */
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rcu_report_qs_rnp(mask, rsp, rnp, flags);
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@ -1226,7 +1226,7 @@ static void force_quiescent_state(struct rcu_state *rsp, int relaxed)
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break; /* So gcc recognizes the dead code. */
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/* Record dyntick-idle state. */
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gpdone = rcu_process_dyntick(rsp, rsp->gpnum - 1,
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gpdone = rcu_process_dyntick(rsp,
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dyntick_save_progress_counter);
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spin_lock(&rnp->lock); /* irqs already disabled */
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if (gpdone)
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@ -1249,8 +1249,7 @@ static void force_quiescent_state(struct rcu_state *rsp, int relaxed)
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/* Check dyntick-idle state, send IPI to laggarts. */
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spin_unlock(&rnp->lock); /* irqs remain disabled */
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gpdone = rcu_process_dyntick(rsp, rsp->gpnum - 1,
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rcu_implicit_dynticks_qs);
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gpdone = rcu_process_dyntick(rsp, rcu_implicit_dynticks_qs);
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/* Leave state in case more forcing is required. */
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