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Date: Fri, 15 Jun 2012 14:06:09 -0700
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
fweisbec@...il.com, patches@...aro.org,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 14/15] rcu: Use for_each_rcu_flavor() in TREE_RCU tracing
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
This commit applies the new for_each_rcu_flavor() macro to the
kernel/rcutree_trace.c file.
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
kernel/rcutree_trace.c | 95 +++++++++++++++++++-----------------------------
1 files changed, 38 insertions(+), 57 deletions(-)
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index 057408b..c618665 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -48,22 +48,18 @@
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' : '.',
+ 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);
+ struct rcu_state *rsp;
+
+ for_each_rcu_flavor(rsp)
+ print_rcubarrier(m, rsp);
return 0;
}
@@ -129,24 +125,16 @@ 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 +188,9 @@ 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 +198,11 @@ 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 +292,9 @@ 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 +317,10 @@ 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 +361,10 @@ 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;
}
@@ -430,14 +413,12 @@ static void print_rcu_pendings(struct seq_file *m, struct rcu_state *rsp)
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);
+ struct rcu_state *rsp;
+
+ for_each_rcu_flavor(rsp) {
+ seq_printf(m, "%s:\n", rsp->name);
+ print_rcu_pendings(m, rsp);
+ }
return 0;
}
--
1.7.8
--
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