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Searched refs:rcu_state (Results 1 – 10 of 10) sorted by relevance

/Linux-v5.10/kernel/rcu/
Dtree_stall.h72 return !time_before(j, READ_ONCE(rcu_state.gp_start) + d); in rcu_gp_might_be_stalled()
124 WRITE_ONCE(rcu_state.jiffies_stall, jiffies + ULONG_MAX / 2); in rcu_cpu_stall_reset()
137 WRITE_ONCE(rcu_state.gp_start, j); in record_gp_stall_check_time()
140 WRITE_ONCE(rcu_state.jiffies_stall, j + j1); in record_gp_stall_check_time()
141 rcu_state.jiffies_resched = j + j1 / 2; in record_gp_stall_check_time()
142 rcu_state.n_force_qs_gpstart = READ_ONCE(rcu_state.n_force_qs); in record_gp_stall_check_time()
163 j = READ_ONCE(rcu_state.jiffies_kick_kthreads); in rcu_stall_kick_kthreads()
164 if (time_after(jiffies, j) && rcu_state.gp_kthread && in rcu_stall_kick_kthreads()
165 (rcu_gp_in_progress() || READ_ONCE(rcu_state.gp_flags))) { in rcu_stall_kick_kthreads()
167 rcu_state.name); in rcu_stall_kick_kthreads()
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Dtree.c87 static struct rcu_state rcu_state = { variable
88 .level = { &rcu_state.node[0] },
91 .barrier_mutex = __MUTEX_INITIALIZER(rcu_state.barrier_mutex),
94 .exp_mutex = __MUTEX_INITIALIZER(rcu_state.exp_mutex),
95 .exp_wake_mutex = __MUTEX_INITIALIZER(rcu_state.exp_wake_mutex),
96 .ofl_lock = __RAW_SPIN_LOCK_UNLOCKED(rcu_state.ofl_lock),
219 return rcu_seq_state(rcu_seq_current(&rcu_state.gp_seq)); in rcu_gp_in_progress()
571 return READ_ONCE(rcu_state.gp_seq); in rcu_get_gp_seq()
583 return rcu_state.expedited_sequence; in rcu_exp_batches_completed()
592 return &rcu_state.node[0]; in rcu_get_root()
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Dtree_exp.h20 rcu_seq_start(&rcu_state.expedited_sequence); in rcu_exp_gp_seq_start()
29 return rcu_seq_endval(&rcu_state.expedited_sequence); in rcu_exp_gp_seq_endval()
37 rcu_seq_end(&rcu_state.expedited_sequence); in rcu_exp_gp_seq_end()
51 s = rcu_seq_snap(&rcu_state.expedited_sequence); in rcu_exp_gp_seq_snap()
52 trace_rcu_exp_grace_period(rcu_state.name, s, TPS("snap")); in rcu_exp_gp_seq_snap()
63 return rcu_seq_done(&rcu_state.expedited_sequence, s); in rcu_exp_gp_seq_done()
79 int ncpus = smp_load_acquire(&rcu_state.ncpus); /* Order vs. locking. */ in sync_exp_reset_tree_hotplug()
84 if (likely(ncpus == rcu_state.ncpus_snap)) in sync_exp_reset_tree_hotplug()
86 rcu_state.ncpus_snap = ncpus; in sync_exp_reset_tree_hotplug()
201 swake_up_one(&rcu_state.expedited_wq); in __rcu_report_exp_rnp()
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Dtree_plugin.h314 trace_rcu_preempt_task(rcu_state.name, in rcu_note_context_switch()
379 if (IS_ENABLED(CONFIG_RCU_STRICT_GRACE_PERIOD) && rcu_state.gp_kthread) in __rcu_read_lock()
708 time_after(jiffies, rcu_state.gp_start + HZ)) in rcu_flavor_sched_clock_irq()
791 irqs_disabled() || preempt_count() || !rcu_state.gp_kthread) in rcu_read_unlock_strict()
1096 (!time_after(rnp->boost_time, jiffies) || rcu_state.cbovld))) { in rcu_initiate_boost()
1144 rcu_state.boost = 1; in rcu_spawn_one_boost_kthread()
1643 trace_rcu_nocb_wake(rcu_state.name, rdp->cpu, in wake_nocb_gp()
1654 trace_rcu_nocb_wake(rcu_state.name, rdp->cpu, TPS("DoWake")); in wake_nocb_gp()
1672 trace_rcu_nocb_wake(rcu_state.name, rdp->cpu, reason); in wake_nocb_gp_defer()
1798 trace_rcu_nocb_wake(rcu_state.name, rdp->cpu, in rcu_nocb_try_bypass()
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Drcu.h312 #define rcu_first_leaf_node() (rcu_state.level[rcu_num_lvls - 1])
318 #define rcu_is_last_leaf_node(rnp) ((rnp) == &rcu_state.node[rcu_num_nodes - 1])
329 srcu_for_each_node_breadth_first(&rcu_state, rnp)
339 (rnp) < &rcu_state.node[rcu_num_nodes]; (rnp)++)
Dtree.h295 struct rcu_state { struct
/Linux-v5.10/Documentation/RCU/Design/Data-Structures/
DData-Structures.rst27 This diagram shows an enclosing ``rcu_state`` structure containing a tree
137 #. Each ``rcu_state`` structures has a lock and a mutex, and some fields
154 #. ``rcu_state``: This structure forms the interconnection between the
189 following sections give more details on the ``rcu_state``, ``rcu_node``
192 The ``rcu_state`` Structure
195 The ``rcu_state`` structure is the base structure that represents the
202 A few of the ``rcu_state`` structure's fields are discussed, singly and
209 This portion of the ``rcu_state`` structure is declared as follows:
268 This portion of the ``rcu_state`` structure is declared as follows:
283 structures as well. The fields in the ``rcu_state`` structure represent
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/Linux-v5.10/Documentation/RCU/Design/Expedited-Grace-Periods/
DExpedited-Grace-Periods.rst150 ``rcu_state`` structure's ``->ncpus`` field. The ``rcu_state``
160 ``rcu_state`` structure's ``->ncpus`` and ``->ncpus_snap`` fields are
259 ``->expedited_sequence`` in the ``rcu_state`` structure. This counter
309 respectively. The current value of the ``rcu_state`` structure's
351 Task A now acquires the ``rcu_state`` structure's ``->exp_mutex`` and
/Linux-v5.10/Documentation/RCU/Design/Memory-Ordering/
DTree-RCU-Memory-Ordering.rst179 7 struct rcu_state *rsp;
317 advance the ``rcu_state`` structure's ``->gp_seq`` grace-period-number
346 to the newly advanced value from the ``rcu_state`` structure, as shown
355 ``rcu_state`` structure's ``->gp_seq`` field) before setting each leaf
543 ``rcu_state`` structure's ``->gp_seq`` field. The ordering effects are
562 | once the ``rcu_state`` structure's ``->gp_seq`` field has been |
/Linux-v5.10/Documentation/RCU/
Dstallwarn.rst203 possible for an rcu_state stall to be caused by both CPUs -and- tasks,