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Commit c0cc962d authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

rcu: Use for_each_rcu_flavor() in TREE_RCU tracing 



This commit applies the new for_each_rcu_flavor() macro to the
kernel/rcutree_trace.c file.

Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 6ce75a23

kernel/rcutree_trace.c

+43 −73
Original line number Diff line number Diff line
@@ -46,24 +46,15 @@ 
#define RCU_TREE_NONCORE

#include "rcutree.h"



static void print_rcubarrier(struct seq_file *m, struct rcu_state *rsp)

static int show_rcubarrier(struct seq_file *m, void *unused)

{

	seq_printf(m, "%c bcc: %d nbd: %lu\n",

		   rsp->rcu_barrier_in_progress ? 'B' : '.',

	struct rcu_state *rsp;



	for_each_rcu_flavor(rsp)

		seq_printf(m, "%s: %c bcc: %d nbd: %lu\n",

			   rsp->name, rsp->rcu_barrier_in_progress ? 'B' : '.',

			   atomic_read(&rsp->barrier_cpu_count),

			   rsp->n_barrier_done);

}



static int show_rcubarrier(struct seq_file *m, void *unused)

{

#ifdef CONFIG_TREE_PREEMPT_RCU

	seq_puts(m, "rcu_preempt: ");

	print_rcubarrier(m, &rcu_preempt_state);

#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */

	seq_puts(m, "rcu_sched: ");

	print_rcubarrier(m, &rcu_sched_state);

	seq_puts(m, "rcu_bh: ");

	print_rcubarrier(m, &rcu_bh_state);

	return 0;

}
@@ -129,24 +120,16 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp) 
		   rdp->n_cbs_invoked, rdp->n_cbs_orphaned, rdp->n_cbs_adopted);

}



#define PRINT_RCU_DATA(name, func, m) \

	do { \

		int _p_r_d_i; \

		\

		for_each_possible_cpu(_p_r_d_i) \

			func(m, &per_cpu(name, _p_r_d_i)); \

	} while (0)



static int show_rcudata(struct seq_file *m, void *unused)

{

#ifdef CONFIG_TREE_PREEMPT_RCU

	seq_puts(m, "rcu_preempt:\n");

	PRINT_RCU_DATA(rcu_preempt_data, print_one_rcu_data, m);

#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */

	seq_puts(m, "rcu_sched:\n");

	PRINT_RCU_DATA(rcu_sched_data, print_one_rcu_data, m);

	seq_puts(m, "rcu_bh:\n");

	PRINT_RCU_DATA(rcu_bh_data, print_one_rcu_data, m);

	int cpu;

	struct rcu_state *rsp;



	for_each_rcu_flavor(rsp) {

		seq_printf(m, "%s:\n", rsp->name);

		for_each_possible_cpu(cpu)

			print_one_rcu_data(m, per_cpu_ptr(rsp->rda, cpu));

	}

	return 0;

}
@@ -200,6 +183,9 @@ static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp) 


static int show_rcudata_csv(struct seq_file *m, void *unused)

{

	int cpu;

	struct rcu_state *rsp;



	seq_puts(m, "\"CPU\",\"Online?\",\"c\",\"g\",\"pq\",\"pgp\",\"pq\",");

	seq_puts(m, "\"dt\",\"dt nesting\",\"dt NMI nesting\",\"df\",");

	seq_puts(m, "\"of\",\"qll\",\"ql\",\"qs\"");
@@ -207,14 +193,11 @@ static int show_rcudata_csv(struct seq_file *m, void *unused) 
	seq_puts(m, "\"kt\",\"ktl\"");

#endif /* #ifdef CONFIG_RCU_BOOST */

	seq_puts(m, ",\"b\",\"ci\",\"co\",\"ca\"\n");

#ifdef CONFIG_TREE_PREEMPT_RCU

	seq_puts(m, "\"rcu_preempt:\"\n");

	PRINT_RCU_DATA(rcu_preempt_data, print_one_rcu_data_csv, m);

#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */

	seq_puts(m, "\"rcu_sched:\"\n");

	PRINT_RCU_DATA(rcu_sched_data, print_one_rcu_data_csv, m);

	seq_puts(m, "\"rcu_bh:\"\n");

	PRINT_RCU_DATA(rcu_bh_data, print_one_rcu_data_csv, m);

	for_each_rcu_flavor(rsp) {

		seq_printf(m, "\"%s:\"\n", rsp->name);

		for_each_possible_cpu(cpu)

			print_one_rcu_data_csv(m, per_cpu_ptr(rsp->rda, cpu));

	}

	return 0;

}
@@ -304,9 +287,9 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp) 
	struct rcu_node *rnp;



	gpnum = rsp->gpnum;

	seq_printf(m, "c=%lu g=%lu s=%d jfq=%ld j=%x "

	seq_printf(m, "%s: c=%lu g=%lu s=%d jfq=%ld j=%x "

		      "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld/%ld\n",

		   rsp->completed, gpnum, rsp->fqs_state,

		   rsp->name, rsp->completed, gpnum, rsp->fqs_state,

		   (long)(rsp->jiffies_force_qs - jiffies),

		   (int)(jiffies & 0xffff),

		   rsp->n_force_qs, rsp->n_force_qs_ngp,
@@ -329,14 +312,10 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp) 


static int show_rcuhier(struct seq_file *m, void *unused)

{

#ifdef CONFIG_TREE_PREEMPT_RCU

	seq_puts(m, "rcu_preempt:\n");

	print_one_rcu_state(m, &rcu_preempt_state);

#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */

	seq_puts(m, "rcu_sched:\n");

	print_one_rcu_state(m, &rcu_sched_state);

	seq_puts(m, "rcu_bh:\n");

	print_one_rcu_state(m, &rcu_bh_state);

	struct rcu_state *rsp;



	for_each_rcu_flavor(rsp)

		print_one_rcu_state(m, rsp);

	return 0;

}
@@ -377,11 +356,10 @@ static void show_one_rcugp(struct seq_file *m, struct rcu_state *rsp) 


static int show_rcugp(struct seq_file *m, void *unused)

{

#ifdef CONFIG_TREE_PREEMPT_RCU

	show_one_rcugp(m, &rcu_preempt_state);

#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */

	show_one_rcugp(m, &rcu_sched_state);

	show_one_rcugp(m, &rcu_bh_state);

	struct rcu_state *rsp;



	for_each_rcu_flavor(rsp)

		show_one_rcugp(m, rsp);

	return 0;

}
@@ -416,28 +394,20 @@ static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp) 
		   rdp->n_rp_need_nothing);

}



static void print_rcu_pendings(struct seq_file *m, struct rcu_state *rsp)

static int show_rcu_pending(struct seq_file *m, void *unused)

{

	int cpu;

	struct rcu_data *rdp;

	struct rcu_state *rsp;



	for_each_rcu_flavor(rsp) {

		seq_printf(m, "%s:\n", rsp->name);

		for_each_possible_cpu(cpu) {

			rdp = per_cpu_ptr(rsp->rda, cpu);

			if (rdp->beenonline)

				print_one_rcu_pending(m, rdp);

		}

	}



static int show_rcu_pending(struct seq_file *m, void *unused)

{

#ifdef CONFIG_TREE_PREEMPT_RCU

	seq_puts(m, "rcu_preempt:\n");

	print_rcu_pendings(m, &rcu_preempt_state);

#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */

	seq_puts(m, "rcu_sched:\n");

	print_rcu_pendings(m, &rcu_sched_state);

	seq_puts(m, "rcu_bh:\n");

	print_rcu_pendings(m, &rcu_bh_state);

	return 0;

}