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: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index 057408be6c3b4b225ca48e9129758a5caa2d3e2b..a16ddbd6fdc4b2e28ca3f1814a8093f2f4c45960 100644 (file)
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -46,24 +46,15 @@
 #define RCU_TREE_NONCORE
 #include "rcutree.h"
 
-static void print_rcubarrier(struct seq_file *m, struct rcu_state *rsp)
-{
-       seq_printf(m, "%c bcc: %d nbd: %lu\n",
-                  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);
+       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);
        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;
-
-       for_each_possible_cpu(cpu) {
-               rdp = per_cpu_ptr(rsp->rda, cpu);
-               if (rdp->beenonline)
-                       print_one_rcu_pending(m, 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;
 }