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rcu: Remove rsp parameter from rcu_report_qs_rnp()
There now is only one rcu_state structure in a given build of the Linux kernel, so there is no need to pass it as a parameter to RCU's functions. This commit therefore removes the rsp parameter from rcu_report_qs_rnp(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
parent
2280ee5a7d
commit
b50912d0b5
1 changed files with 11 additions and 12 deletions
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@ -132,9 +132,8 @@ EXPORT_SYMBOL_GPL(rcu_scheduler_active);
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*/
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static int rcu_scheduler_fully_active __read_mostly;
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static void
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rcu_report_qs_rnp(unsigned long mask, struct rcu_state *rsp,
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struct rcu_node *rnp, unsigned long gps, unsigned long flags);
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static void rcu_report_qs_rnp(unsigned long mask, struct rcu_node *rnp,
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unsigned long gps, unsigned long flags);
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static void rcu_init_new_rnp(struct rcu_node *rnp_leaf);
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static void rcu_cleanup_dead_rnp(struct rcu_node *rnp_leaf);
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static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu);
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@ -1947,7 +1946,7 @@ static bool rcu_gp_init(struct rcu_state *rsp)
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mask = rnp->qsmask & ~rnp->qsmaskinitnext;
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rnp->rcu_gp_init_mask = mask;
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if ((mask || rnp->wait_blkd_tasks) && rcu_is_leaf_node(rnp))
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rcu_report_qs_rnp(mask, rsp, rnp, rnp->gp_seq, flags);
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rcu_report_qs_rnp(mask, rnp, rnp->gp_seq, flags);
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else
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raw_spin_unlock_irq_rcu_node(rnp);
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cond_resched_tasks_rcu_qs();
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@ -2214,13 +2213,13 @@ static void rcu_report_qs_rsp(struct rcu_state *rsp, unsigned long flags)
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* disabled. This allows propagating quiescent state due to resumed tasks
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* during grace-period initialization.
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*/
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static void
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rcu_report_qs_rnp(unsigned long mask, struct rcu_state *rsp,
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struct rcu_node *rnp, unsigned long gps, unsigned long flags)
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static void rcu_report_qs_rnp(unsigned long mask, struct rcu_node *rnp,
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unsigned long gps, unsigned long flags)
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__releases(rnp->lock)
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{
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unsigned long oldmask = 0;
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struct rcu_node *rnp_c;
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struct rcu_state __maybe_unused *rsp = &rcu_state;
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raw_lockdep_assert_held_rcu_node(rnp);
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@ -2312,7 +2311,7 @@ rcu_report_unblock_qs_rnp(struct rcu_state *rsp,
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mask = rnp->grpmask;
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raw_spin_unlock_rcu_node(rnp); /* irqs remain disabled. */
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raw_spin_lock_rcu_node(rnp_p); /* irqs already disabled. */
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rcu_report_qs_rnp(mask, rsp, rnp_p, gps, flags);
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rcu_report_qs_rnp(mask, rnp_p, gps, flags);
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}
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/*
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@ -2355,7 +2354,7 @@ rcu_report_qs_rdp(int cpu, struct rcu_state *rsp, struct rcu_data *rdp)
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*/
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needwake = rcu_accelerate_cbs(rsp, rnp, rdp);
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rcu_report_qs_rnp(mask, rsp, rnp, rnp->gp_seq, flags);
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rcu_report_qs_rnp(mask, rnp, rnp->gp_seq, flags);
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/* ^^^ Released rnp->lock */
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if (needwake)
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rcu_gp_kthread_wake(rsp);
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@ -2623,7 +2622,7 @@ static void force_qs_rnp(struct rcu_state *rsp, int (*f)(struct rcu_data *rsp))
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}
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if (mask != 0) {
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/* Idle/offline CPUs, report (releases rnp->lock). */
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rcu_report_qs_rnp(mask, rsp, rnp, rnp->gp_seq, flags);
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rcu_report_qs_rnp(mask, rnp, rnp->gp_seq, flags);
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} else {
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/* Nothing to do here, so just drop the lock. */
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raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
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@ -3577,7 +3576,7 @@ void rcu_cpu_starting(unsigned int cpu)
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rdp->rcu_onl_gp_flags = READ_ONCE(rsp->gp_flags);
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if (rnp->qsmask & mask) { /* RCU waiting on incoming CPU? */
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/* Report QS -after- changing ->qsmaskinitnext! */
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rcu_report_qs_rnp(mask, rsp, rnp, rnp->gp_seq, flags);
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rcu_report_qs_rnp(mask, rnp, rnp->gp_seq, flags);
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} else {
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raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
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}
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@ -3606,7 +3605,7 @@ static void rcu_cleanup_dying_idle_cpu(int cpu, struct rcu_state *rsp)
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rdp->rcu_ofl_gp_flags = READ_ONCE(rsp->gp_flags);
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if (rnp->qsmask & mask) { /* RCU waiting on outgoing CPU? */
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/* Report quiescent state -before- changing ->qsmaskinitnext! */
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rcu_report_qs_rnp(mask, rsp, rnp, rnp->gp_seq, flags);
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rcu_report_qs_rnp(mask, rnp, rnp->gp_seq, flags);
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raw_spin_lock_irqsave_rcu_node(rnp, flags);
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}
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rnp->qsmaskinitnext &= ~mask;
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