| /Linux-v5.10/kernel/rcu/ |
| D | tree.h | 40 struct rcu_node { struct
84 struct rcu_node *parent; argument
160 struct rcu_node *mynode; /* This CPU's leaf of hierarchy */
296 struct rcu_node node[NUM_RCU_NODES]; /* Hierarchy. */
297 struct rcu_node *level[RCU_NUM_LVLS + 1];
404 static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp);
406 static bool rcu_preempt_has_tasks(struct rcu_node *rnp);
408 static int rcu_print_task_exp_stall(struct rcu_node *rnp);
409 static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp);
411 static void dump_blkd_tasks(struct rcu_node *rnp, int ncheck);
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| D | tree_exp.h | 13 static int rcu_print_task_exp_stall(struct rcu_node *rnp);
80 struct rcu_node *rnp; in sync_exp_reset_tree_hotplug()
81 struct rcu_node *rnp_up; in sync_exp_reset_tree_hotplug()
133 struct rcu_node *rnp; in sync_exp_reset_tree()
150 static bool sync_rcu_exp_done(struct rcu_node *rnp) in sync_rcu_exp_done()
161 static bool sync_rcu_exp_done_unlocked(struct rcu_node *rnp) in sync_rcu_exp_done_unlocked()
182 static void __rcu_report_exp_rnp(struct rcu_node *rnp, in __rcu_report_exp_rnp()
218 static void __maybe_unused rcu_report_exp_rnp(struct rcu_node *rnp, bool wake) in rcu_report_exp_rnp()
230 static void rcu_report_exp_cpu_mult(struct rcu_node *rnp, in rcu_report_exp_cpu_mult()
283 struct rcu_node *rnp = rdp->mynode; in exp_funnel_lock()
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| D | tree_plugin.h | 88 static void rcu_report_exp_rnp(struct rcu_node *rnp, bool wake);
134 static void rcu_preempt_ctxt_queue(struct rcu_node *rnp, struct rcu_data *rdp) in rcu_preempt_ctxt_queue()
293 struct rcu_node *rnp; in rcu_note_context_switch()
346 static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp) in rcu_preempt_blocked_readers_cgp()
414 struct rcu_node *rnp) in rcu_next_node_entry()
428 static bool rcu_preempt_has_tasks(struct rcu_node *rnp) in rcu_preempt_has_tasks()
447 struct rcu_node *rnp; in rcu_preempt_deferred_qs_irqrestore()
614 struct rcu_node *rnp = rdp->mynode; in rcu_read_unlock_special()
655 static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp) in rcu_preempt_check_blocked_tasks()
742 dump_blkd_tasks(struct rcu_node *rnp, int ncheck) in dump_blkd_tasks()
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| D | tree.c | 145 static void rcu_report_qs_rnp(unsigned long mask, struct rcu_node *rnp,
147 static void rcu_init_new_rnp(struct rcu_node *rnp_leaf);
148 static void rcu_cleanup_dead_rnp(struct rcu_node *rnp_leaf);
149 static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu);
153 static void check_cb_ovld_locked(struct rcu_data *rdp, struct rcu_node *rnp);
207 static unsigned long rcu_rnp_online_cpus(struct rcu_node *rnp) in rcu_rnp_online_cpus()
590 static struct rcu_node *rcu_get_root(void) in rcu_get_root()
1144 struct rcu_node *rnp; in rcu_lockdep_current_cpu_online()
1168 static void rcu_gpnum_ovf(struct rcu_node *rnp, struct rcu_data *rdp) in rcu_gpnum_ovf()
1205 struct rcu_node *rnp = rdp->mynode; in rcu_implicit_dynticks_qs()
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| D | tree_stall.h | 182 struct rcu_node *rnp; in rcu_iw_handler()
204 static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp) in rcu_print_detail_task_stall_rnp()
254 static int rcu_print_task_stall(struct rcu_node *rnp, unsigned long flags) in rcu_print_task_stall()
300 static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp) in rcu_print_detail_task_stall_rnp()
308 static int rcu_print_task_stall(struct rcu_node *rnp, unsigned long flags) in rcu_print_task_stall()
325 struct rcu_node *rnp; in rcu_dump_cpu_stacks()
472 struct rcu_node *rnp; in print_other_cpu_stall()
538 struct rcu_node *rnp = rcu_get_root(); in print_cpu_stall()
593 struct rcu_node *rnp; in check_cpu_stall()
669 struct rcu_node *rnp; in show_rcu_gp_kthreads()
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| D | Kconfig | 159 lock contention on the leaf-level rcu_node structures unless
166 kernel boot parameter to avoid contention on the rcu_node
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| /Linux-v5.10/Documentation/RCU/Design/Data-Structures/ |
| D | Data-Structures.rst | 28 of ``rcu_node`` structures. Each leaf node of the ``rcu_node`` tree has up
34 which results in a three-level ``rcu_node`` tree.
36 at boot time, resulting in an ``rcu_node`` tree with only a single node.
43 and other events are recorded by the leaf-level ``rcu_node``
46 grace periods are completed at the tree's root ``rcu_node``
66 | ``rcu_node`` structures than further up the tree. Therefore, if the |
67 | leaf ``rcu_node`` structures have fanout of 64, the contention on |
70 | for the leaves of the ``rcu_node`` tree. |
74 | ``rcu_node`` structures must also be reduced. Such reduction can be |
77 | on the non-leaf ``rcu_node`` structures, you may use the |
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| /Linux-v5.10/Documentation/RCU/Design/Memory-Ordering/ |
| D | Tree-RCU-Memory-Ordering.rst | 50 critical section for the ``rcu_node`` structure's
62 Therefore, for any given ``rcu_node`` structure, any access
71 on different ``rcu_node`` structures.
137 | by the CPU's leaf ``rcu_node`` structure's ``->lock`` as described |
165 the ``rcu_node`` structure's ``->lock`` field, so much so that it is
178 6 struct rcu_node *rnp;
221 .. kernel-figure:: rcu_node-lock.svg
223 The box represents the ``rcu_node`` structure's ``->lock`` critical
281 ``rcu_node`` structure's ``->lock``. In all cases, there is full
282 ordering against any prior critical section for that same ``rcu_node``
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| /Linux-v5.10/Documentation/RCU/Design/Expedited-Grace-Periods/ |
| D | Expedited-Grace-Periods.rst | 156 the ``rcu_node`` structure's ``->expmaskinitnext`` field. The
157 ``rcu_node`` structure's ``->expmaskinit`` field tracks the
162 that is, when the ``rcu_node`` structure's ``->expmaskinitnext``
164 period, which triggers an update of each ``rcu_node`` structure's
166 #. Each ``rcu_node`` structure's ``->expmaskinit`` field is used to
171 #. Any CPU that goes offline will clear its bit in its leaf ``rcu_node``
215 | bitmasks in the ``rcu_node`` tree. |
289 the expedited grace period is to use the ``rcu_node`` combining tree, as
291 corresponding to a given grace period arriving at a given ``rcu_node``
298 ``->exp_lock`` field in the ``rcu_node`` structure synchronizes access
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| /Linux-v5.10/Documentation/RCU/ |
| D | stallwarn.rst | 277 which is way less than 23807. Finally, the root rcu_node structure's
326 rcu_node structure correspond to CPUs and/or tasks that are blocking the
329 rcu_node structures in the tree.
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| /Linux-v5.10/drivers/net/ethernet/chelsio/inline_crypto/chtls/ |
| D | chtls.h | 234 struct list_head rcu_node; member
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| /Linux-v5.10/include/linux/ |
| D | sched.h | 54 struct rcu_node;
730 struct rcu_node *rcu_blocked_node;
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| /Linux-v5.10/drivers/scsi/cxgbi/ |
| D | libcxgbi.h | 480 struct list_head rcu_node; member
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| D | libcxgbi.c | 157 list_add_tail_rcu(&cdev->rcu_node, &cdev_rcu_list); in cxgbi_device_register()
177 list_del_rcu(&cdev->rcu_node); in cxgbi_device_unregister()
267 list_for_each_entry_rcu(cdev, &cdev_rcu_list, rcu_node) { in cxgbi_device_find_by_netdev_rcu()
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| /Linux-v5.10/drivers/net/ethernet/chelsio/cxgb4/ |
| D | cxgb4.h | 1158 struct list_head rcu_node; member
|
| /Linux-v5.10/Documentation/admin-guide/ |
| D | kernel-parameters.txt | 4064 Dump the structure of the rcu_node combining tree
4080 the rcu_node combining tree.
4089 Disable autobalancing of the rcu_node combining
4096 leaf rcu_node structure. Useful for very
4199 rcu_node tree with an eye towards determining
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| /Linux-v5.10/Documentation/RCU/Design/Requirements/ |
| D | Requirements.rst | 2281 on the ``rcu_node`` structure. RCU is required to tolerate all CPUs
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