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Searched refs:rnp (Results 1 – 9 of 9) sorted by relevance

/linux/kernel/rcu/
H A Dtree_exp.h14 static int rcu_print_task_exp_stall(struct rcu_node *rnp);
15 static void rcu_exp_print_detail_task_stall_rnp(struct rcu_node *rnp);
84 struct rcu_node *rnp; in sync_exp_reset_tree_hotplug() local
96 rcu_for_each_leaf_node(rnp) { in sync_exp_reset_tree_hotplug()
97 raw_spin_lock_irqsave_rcu_node(rnp, flags); in sync_exp_reset_tree_hotplug()
98 if (rnp->expmaskinit == rnp->expmaskinitnext) { in sync_exp_reset_tree_hotplug()
99 raw_spin_unlock_irqrestore_rcu_node(rnp, flags); in sync_exp_reset_tree_hotplug()
104 oldmask = rnp->expmaskinit; in sync_exp_reset_tree_hotplug()
105 rnp->expmaskinit = rnp->expmaskinitnext; in sync_exp_reset_tree_hotplug()
106 raw_spin_unlock_irqrestore_rcu_node(rnp, flags); in sync_exp_reset_tree_hotplug()
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H A Dtree_plugin.h116 static void rcu_report_exp_rnp(struct rcu_node *rnp, bool wake);
162 static void rcu_preempt_ctxt_queue(struct rcu_node *rnp, struct rcu_data *rdp) in rcu_preempt_ctxt_queue() argument
163 __releases(rnp->lock) /* But leaves rrupts disabled. */ in rcu_preempt_ctxt_queue()
165 int blkd_state = (rnp->gp_tasks ? RCU_GP_TASKS : 0) + in rcu_preempt_ctxt_queue()
166 (rnp->exp_tasks ? RCU_EXP_TASKS : 0) + in rcu_preempt_ctxt_queue()
167 (rnp->qsmask & rdp->grpmask ? RCU_GP_BLKD : 0) + in rcu_preempt_ctxt_queue()
168 (rnp->expmask & rdp->grpmask ? RCU_EXP_BLKD : 0); in rcu_preempt_ctxt_queue()
171 raw_lockdep_assert_held_rcu_node(rnp); in rcu_preempt_ctxt_queue()
172 WARN_ON_ONCE(rdp->mynode != rnp); in rcu_preempt_ctxt_queue()
173 WARN_ON_ONCE(!rcu_is_leaf_node(rnp)); in rcu_preempt_ctxt_queue()
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H A Dtree.c150 static void rcu_report_qs_rnp(unsigned long mask, struct rcu_node *rnp,
152 static struct task_struct *rcu_boost_task(struct rcu_node *rnp);
156 static void check_cb_ovld_locked(struct rcu_data *rdp, struct rcu_node *rnp);
768 static void rcu_gpnum_ovf(struct rcu_node *rnp, struct rcu_data *rdp) in rcu_gpnum_ovf() argument
770 raw_lockdep_assert_held_rcu_node(rnp); in rcu_gpnum_ovf()
772 rnp->gp_seq)) in rcu_gpnum_ovf()
774 if (ULONG_CMP_LT(rdp->rcu_iw_gp_seq + ULONG_MAX / 4, rnp->gp_seq)) in rcu_gpnum_ovf()
775 rdp->rcu_iw_gp_seq = rnp->gp_seq + ULONG_MAX / 4; in rcu_gpnum_ovf()
790 * rnp locking tree since rcu_gp_init() and up to the current leaf rnp in rcu_watching_snap_save()
819 struct rcu_node *rnp = rdp->mynode; rcu_watching_snap_recheck() local
952 trace_rcu_this_gp(struct rcu_node * rnp,struct rcu_data * rdp,unsigned long gp_seq_req,const char * s) trace_rcu_this_gp() argument
980 struct rcu_node *rnp; rcu_start_this_gp() local
1051 rcu_future_gp_cleanup(struct rcu_node * rnp) rcu_future_gp_cleanup() argument
1135 rcu_accelerate_cbs(struct rcu_node * rnp,struct rcu_data * rdp) rcu_accelerate_cbs() argument
1181 rcu_accelerate_cbs_unlocked(struct rcu_node * rnp,struct rcu_data * rdp) rcu_accelerate_cbs_unlocked() argument
1211 rcu_advance_cbs(struct rcu_node * rnp,struct rcu_data * rdp) rcu_advance_cbs() argument
1234 rcu_advance_cbs_nowake(struct rcu_node * rnp,struct rcu_data * rdp) rcu_advance_cbs_nowake() argument
1265 __note_gp_changes(struct rcu_node * rnp,struct rcu_data * rdp) __note_gp_changes() argument
1318 struct rcu_node *rnp; note_gp_changes() local
1406 struct rcu_node *rnp = rcu_get_root(); rcu_poll_gp_seq_start() local
1422 struct rcu_node *rnp = rcu_get_root(); rcu_poll_gp_seq_end() local
1444 struct rcu_node *rnp = rcu_get_root(); rcu_poll_gp_seq_start_unlocked() local
1461 struct rcu_node *rnp = rcu_get_root(); rcu_poll_gp_seq_end_unlocked() local
1802 struct rcu_node *rnp = rcu_get_root(); rcu_gp_init() local
1957 struct rcu_node *rnp = rcu_get_root(); rcu_gp_fqs_check_wake() local
1981 struct rcu_node *rnp = rcu_get_root(); rcu_gp_fqs() local
2020 struct rcu_node *rnp = rcu_get_root(); rcu_gp_fqs_loop() local
2108 struct rcu_node *rnp = rcu_get_root(); rcu_gp_cleanup() local
2289 rcu_report_qs_rnp(unsigned long mask,struct rcu_node * rnp,unsigned long gps,unsigned long flags) rcu_report_qs_rnp() argument
2354 rcu_report_unblock_qs_rnp(struct rcu_node * rnp,unsigned long flags) rcu_report_unblock_qs_rnp() argument
2397 struct rcu_node *rnp; rcu_report_qs_rdp() local
2688 struct rcu_node *rnp; force_qs_rnp() local
2747 struct rcu_node *rnp; rcu_force_quiescent_state() local
2791 struct rcu_node *rnp = rdp->mynode; rcu_core() local
3024 check_cb_ovld_locked(struct rcu_data * rdp,struct rcu_node * rnp) check_cb_ovld_locked() argument
3049 struct rcu_node *const rnp = rdp->mynode; check_cb_ovld() local
4086 struct rcu_node *rnp; synchronize_rcu() local
4173 struct rcu_node *rnp = rcu_get_root(); get_state_synchronize_rcu_full() local
4194 struct rcu_node *rnp; start_poll_synchronize_rcu_common() local
4335 struct rcu_node *rnp = rcu_get_root(); poll_state_synchronize_rcu_full() local
4412 struct rcu_node *rnp = rdp->mynode; rcu_pending() local
4728 rcu_rnp_online_cpus(struct rcu_node * rnp) rcu_rnp_online_cpus() argument
4817 struct rcu_node *rnp = rnp_leaf; rcu_cleanup_dead_rnp() local
4852 struct rcu_node *rnp = rnp_leaf; rcu_init_new_rnp() local
4896 rcu_spawn_exp_par_gp_kworker(struct rcu_node * rnp) rcu_spawn_exp_par_gp_kworker() argument
4918 rcu_exp_par_gp_task(struct rcu_node * rnp) rcu_exp_par_gp_task() argument
4944 rcu_spawn_rnp_kthreads(struct rcu_node * rnp) rcu_spawn_rnp_kthreads() argument
4969 struct rcu_node *rnp = rcu_get_root(); rcutree_prepare_cpu() local
5028 struct rcu_node *rnp; rcutree_affinity_setting() local
5089 struct rcu_node *rnp; rcutree_online_cpu() local
5124 struct rcu_node *rnp; rcutree_report_cpu_starting() local
5182 struct rcu_node *rnp = rdp->mynode; /* Outgoing CPU's rdp & rnp. */ rcutree_report_cpu_dead() local
5292 struct rcu_node *rnp = rdp->mynode; rcutree_dying_cpu() local
5308 struct rcu_node *rnp; rcutree_offline_cpu() local
5354 struct rcu_node *rnp; rcu_spawn_gp_kthread() local
5403 struct rcu_node *rnp; rcu_scheduler_starting() local
5434 struct rcu_node *rnp; rcu_init_one() local
5631 struct rcu_node *rnp; rcu_dump_rcu_node_tree() local
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H A Dtree_stall.h224 struct rcu_node *rnp; in rcu_iw_handler() local
227 rnp = rdp->mynode; in rcu_iw_handler()
228 raw_spin_lock_rcu_node(rnp); in rcu_iw_handler()
230 rdp->rcu_iw_gp_seq = rnp->gp_seq; in rcu_iw_handler()
233 raw_spin_unlock_rcu_node(rnp); in rcu_iw_handler()
246 static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp) in rcu_print_detail_task_stall_rnp() argument
251 raw_spin_lock_irqsave_rcu_node(rnp, flags); in rcu_print_detail_task_stall_rnp()
252 if (!rcu_preempt_blocked_readers_cgp(rnp)) { in rcu_print_detail_task_stall_rnp()
253 raw_spin_unlock_irqrestore_rcu_node(rnp, flags); in rcu_print_detail_task_stall_rnp()
256 t = list_entry(rnp->gp_tasks->prev, in rcu_print_detail_task_stall_rnp()
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H A Drcu.h382 #define rcu_is_leaf_node(rnp) ((rnp)->level == rcu_num_lvls - 1) argument
385 #define rcu_is_last_leaf_node(rnp) ((rnp) == &rcu_state.node[rcu_num_nodes - 1]) argument
392 #define _rcu_for_each_node_breadth_first(sp, rnp) \ argument
393 for ((rnp) = &(sp)->node[0]; \
394 (rnp) < &(sp)->node[rcu_num_nodes]; (rnp)++)
395 #define rcu_for_each_node_breadth_first(rnp) \ argument
396 _rcu_for_each_node_breadth_first(&rcu_state, rnp)
397 #define srcu_for_each_node_breadth_first(ssp, rnp) \ argument
398 _rcu_for_each_node_breadth_first(ssp->srcu_sup, rnp)
406 #define rcu_for_each_leaf_node(rnp) \ argument
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H A Dtree.h146 #define leaf_node_cpu_bit(rnp, cpu) (BIT((cpu) - (rnp)->grplo)) argument
471 static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp);
473 static bool rcu_preempt_has_tasks(struct rcu_node *rnp);
475 static int rcu_print_task_exp_stall(struct rcu_node *rnp);
476 static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp);
478 static void dump_blkd_tasks(struct rcu_node *rnp, int ncheck);
479 static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
480 static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
483 static void rcu_spawn_one_boost_kthread(struct rcu_node *rnp);
484 static bool rcu_preempt_has_tasks(struct rcu_node *rnp);
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H A Dtree_nocb.h182 static struct swait_queue_head *rcu_nocb_gp_get(struct rcu_node *rnp) in rcu_nocb_gp_get() argument
184 return &rnp->nocb_gp_wq[rcu_seq_ctr(rnp->gp_seq) & 0x1]; in rcu_nocb_gp_get()
187 static void rcu_init_one_nocb(struct rcu_node *rnp) in rcu_init_one_nocb() argument
189 init_swait_queue_head(&rnp->nocb_gp_wq[0]); in rcu_init_one_nocb()
190 init_swait_queue_head(&rnp->nocb_gp_wq[1]); in rcu_init_one_nocb()
667 struct rcu_node *rnp; in nocb_gp_wait() local
730 rnp = rdp->mynode; in nocb_gp_wait()
737 rcu_seq_done(&rnp->gp_seq, cur_gp_seq))) { in nocb_gp_wait()
738 raw_spin_lock_rcu_node(rnp); /* irqs disabled. */ in nocb_gp_wait()
739 needwake_gp = rcu_advance_cbs(rnp, rdp); in nocb_gp_wait()
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/linux/Documentation/RCU/Design/Memory-Ordering/
H A DTree-RCU-Memory-Ordering.rst84 5 raw_spin_lock_rcu_node(rnp);
87 8 raw_spin_unlock_rcu_node(rnp);
92 13 raw_spin_lock_rcu_node(rnp);
95 16 raw_spin_unlock_rcu_node(rnp);
206 5 struct rcu_node *rnp;
232 31 rnp = rdp->mynode;
233 32 raw_spin_lock_rcu_node(rnp); /* irqs already disabled. */
234 33 needwake = rcu_accelerate_cbs(rnp, rdp);
235 34 raw_spin_unlock_rcu_node(rnp); /* irqs remain disabled. */
/linux/Documentation/RCU/Design/Data-Structures/
H A DData-Structures.rst1106 6 #define rcu_for_each_node_breadth_first(rsp, rnp) \
1107 7 for ((rnp) = &(rsp)->node[0]; \
1108 8 (rnp) < &(rsp)->node[NUM_RCU_NODES]; (rnp)++)
1110 10 #define rcu_for_each_leaf_node(rsp, rnp) \
1111 11 for ((rnp) = (rsp)->level[NUM_RCU_LVLS - 1]; \
1112 12 (rnp) < &(rsp)->node[NUM_RCU_NODES]; (rnp)++)