sched: clean up schedstats, cnt -> count

rename all 'cnt' fields and variables to the less yucky 'count' name.

yuckage noticed by Andrew Morton.

no change in code, other than the /proc/sched_debug bkl_count string got
a bit larger:

   text    data     bss     dec     hex filename
  38236    3506      24   41766    a326 sched.o.before
  38240    3506      24   41770    a32a sched.o.after

Signed-off-by: Ingo Molnar <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>

fs/proc/base.c

@@ -304,7 +304,7 @@ static int proc_pid_schedstat(struct task_struct *task, char *buffer)
 	return sprintf(buffer, "%llu %llu %lu\n",
 			task->sched_info.cpu_time,
 			task->sched_info.run_delay,
-			task->sched_info.pcnt);
+			task->sched_info.pcount);
 }
 #endif
 

include/linux/sched.h

@@ -614,7 +614,7 @@ struct reclaim_state;
 #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
 struct sched_info {
 	/* cumulative counters */
-	unsigned long pcnt;	      /* # of times run on this cpu */
+	unsigned long pcount;	      /* # of times run on this cpu */
 	unsigned long long cpu_time,  /* time spent on the cpu */
 			   run_delay; /* time spent waiting on a runqueue */
 
@@ -623,7 +623,7 @@ struct sched_info {
 			   last_queued;	/* when we were last queued to run */
 #ifdef CONFIG_SCHEDSTATS
 	/* BKL stats */
-	unsigned long bkl_cnt;
+	unsigned long bkl_count;
 #endif
 };
 #endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */
@@ -759,7 +759,7 @@ struct sched_domain {
 
 #ifdef CONFIG_SCHEDSTATS
 	/* load_balance() stats */
-	unsigned long lb_cnt[CPU_MAX_IDLE_TYPES];
+	unsigned long lb_count[CPU_MAX_IDLE_TYPES];
 	unsigned long lb_failed[CPU_MAX_IDLE_TYPES];
 	unsigned long lb_balanced[CPU_MAX_IDLE_TYPES];
 	unsigned long lb_imbalance[CPU_MAX_IDLE_TYPES];
@@ -769,17 +769,17 @@ struct sched_domain {
 	unsigned long lb_nobusyq[CPU_MAX_IDLE_TYPES];
 
 	/* Active load balancing */
-	unsigned long alb_cnt;
+	unsigned long alb_count;
 	unsigned long alb_failed;
 	unsigned long alb_pushed;
 
 	/* SD_BALANCE_EXEC stats */
-	unsigned long sbe_cnt;
+	unsigned long sbe_count;
 	unsigned long sbe_balanced;
 	unsigned long sbe_pushed;
 
 	/* SD_BALANCE_FORK stats */
-	unsigned long sbf_cnt;
+	unsigned long sbf_count;
 	unsigned long sbf_balanced;
 	unsigned long sbf_pushed;
 

kernel/delayacct.c

@@ -119,7 +119,7 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	 * No locking available for sched_info (and too expensive to add one)
 	 * Mitigate by taking snapshot of values
 	 */
-	t1 = tsk->sched_info.pcnt;
+	t1 = tsk->sched_info.pcount;
 	t2 = tsk->sched_info.run_delay;
 	t3 = tsk->sched_info.cpu_time;
 

kernel/sched.c

@@ -349,19 +349,19 @@ struct rq {
 	unsigned long yld_exp_empty;
 	unsigned long yld_act_empty;
 	unsigned long yld_both_empty;
-	unsigned long yld_cnt;
+	unsigned long yld_count;
 
 	/* schedule() stats */
 	unsigned long sched_switch;
-	unsigned long sched_cnt;
+	unsigned long sched_count;
 	unsigned long sched_goidle;
 
 	/* try_to_wake_up() stats */
-	unsigned long ttwu_cnt;
+	unsigned long ttwu_count;
 	unsigned long ttwu_local;
 
 	/* BKL stats */
-	unsigned long bkl_cnt;
+	unsigned long bkl_count;
 #endif
 	struct lock_class_key rq_lock_key;
 };
@@ -1481,7 +1481,7 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync)
 
 	new_cpu = cpu;
 
-	schedstat_inc(rq, ttwu_cnt);
+	schedstat_inc(rq, ttwu_count);
 	if (cpu == this_cpu) {
 		schedstat_inc(rq, ttwu_local);
 		goto out_set_cpu;
@@ -2637,7 +2637,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
 	    !test_sd_parent(sd, SD_POWERSAVINGS_BALANCE))
 		sd_idle = 1;
 
-	schedstat_inc(sd, lb_cnt[idle]);
+	schedstat_inc(sd, lb_count[idle]);
 
 redo:
 	group = find_busiest_group(sd, this_cpu, &imbalance, idle, &sd_idle,
@@ -2790,7 +2790,7 @@ load_balance_newidle(int this_cpu, struct rq *this_rq, struct sched_domain *sd)
 	    !test_sd_parent(sd, SD_POWERSAVINGS_BALANCE))
 		sd_idle = 1;
 
-	schedstat_inc(sd, lb_cnt[CPU_NEWLY_IDLE]);
+	schedstat_inc(sd, lb_count[CPU_NEWLY_IDLE]);
 redo:
 	group = find_busiest_group(sd, this_cpu, &imbalance, CPU_NEWLY_IDLE,
 				   &sd_idle, &cpus, NULL);
@@ -2924,7 +2924,7 @@ static void active_load_balance(struct rq *busiest_rq, int busiest_cpu)
 	}
 
 	if (likely(sd)) {
-		schedstat_inc(sd, alb_cnt);
+		schedstat_inc(sd, alb_count);
 
 		if (move_one_task(target_rq, target_cpu, busiest_rq,
 				  sd, CPU_IDLE))
@@ -3414,11 +3414,11 @@ static inline void schedule_debug(struct task_struct *prev)
 
 	profile_hit(SCHED_PROFILING, __builtin_return_address(0));
 
-	schedstat_inc(this_rq(), sched_cnt);
+	schedstat_inc(this_rq(), sched_count);
 #ifdef CONFIG_SCHEDSTATS
 	if (unlikely(prev->lock_depth >= 0)) {
-		schedstat_inc(this_rq(), bkl_cnt);
-		schedstat_inc(prev, sched_info.bkl_cnt);
+		schedstat_inc(this_rq(), bkl_count);
+		schedstat_inc(prev, sched_info.bkl_count);
 	}
 #endif
 }
@@ -4558,7 +4558,7 @@ asmlinkage long sys_sched_yield(void)
 {
 	struct rq *rq = this_rq_lock();
 
-	schedstat_inc(rq, yld_cnt);
+	schedstat_inc(rq, yld_count);
 	current->sched_class->yield_task(rq);
 
 	/*

kernel/sched_debug.c

@@ -137,8 +137,8 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 	SEQ_printf(m, "  .%-30s: %ld\n", "nr_running", cfs_rq->nr_running);
 	SEQ_printf(m, "  .%-30s: %ld\n", "load", cfs_rq->load.weight);
 #ifdef CONFIG_SCHEDSTATS
-	SEQ_printf(m, "  .%-30s: %ld\n", "bkl_cnt",
-			rq->bkl_cnt);
+	SEQ_printf(m, "  .%-30s: %ld\n", "bkl_count",
+			rq->bkl_count);
 #endif
 	SEQ_printf(m, "  .%-30s: %ld\n", "nr_spread_over",
 			cfs_rq->nr_spread_over);
@@ -342,7 +342,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 	PN(se.exec_max);
 	PN(se.slice_max);
 	PN(se.wait_max);
-	P(sched_info.bkl_cnt);
+	P(sched_info.bkl_count);
 #endif
 	SEQ_printf(m, "%-25s:%20Ld\n",
 		   "nr_switches", (long long)(p->nvcsw + p->nivcsw));
@@ -370,7 +370,7 @@ void proc_sched_set_task(struct task_struct *p)
 	p->se.exec_max			= 0;
 	p->se.slice_max			= 0;
 	p->se.wait_max			= 0;
-	p->sched_info.bkl_cnt		= 0;
+	p->sched_info.bkl_count		= 0;
 #endif
 	p->se.sum_exec_runtime		= 0;
 	p->se.prev_sum_exec_runtime	= 0;

kernel/sched_stats.h

@@ -16,18 +16,18 @@ static int show_schedstat(struct seq_file *seq, void *v)
 		struct rq *rq = cpu_rq(cpu);
 #ifdef CONFIG_SMP
 		struct sched_domain *sd;
-		int dcnt = 0;
+		int dcount = 0;
 #endif
 
 		/* runqueue-specific stats */
 		seq_printf(seq,
 		    "cpu%d %lu %lu %lu %lu %lu %lu %lu %lu %lu %llu %llu %lu",
 		    cpu, rq->yld_both_empty,
-		    rq->yld_act_empty, rq->yld_exp_empty, rq->yld_cnt,
-		    rq->sched_switch, rq->sched_cnt, rq->sched_goidle,
-		    rq->ttwu_cnt, rq->ttwu_local,
+		    rq->yld_act_empty, rq->yld_exp_empty, rq->yld_count,
+		    rq->sched_switch, rq->sched_count, rq->sched_goidle,
+		    rq->ttwu_count, rq->ttwu_local,
 		    rq->rq_sched_info.cpu_time,
-		    rq->rq_sched_info.run_delay, rq->rq_sched_info.pcnt);
+		    rq->rq_sched_info.run_delay, rq->rq_sched_info.pcount);
 
 		seq_printf(seq, "\n");
 
@@ -39,12 +39,12 @@ static int show_schedstat(struct seq_file *seq, void *v)
 			char mask_str[NR_CPUS];
 
 			cpumask_scnprintf(mask_str, NR_CPUS, sd->span);
-			seq_printf(seq, "domain%d %s", dcnt++, mask_str);
+			seq_printf(seq, "domain%d %s", dcount++, mask_str);
 			for (itype = CPU_IDLE; itype < CPU_MAX_IDLE_TYPES;
 					itype++) {
 				seq_printf(seq, " %lu %lu %lu %lu %lu %lu %lu "
 						"%lu",
-				    sd->lb_cnt[itype],
+				    sd->lb_count[itype],
 				    sd->lb_balanced[itype],
 				    sd->lb_failed[itype],
 				    sd->lb_imbalance[itype],
@@ -55,9 +55,9 @@ static int show_schedstat(struct seq_file *seq, void *v)
 			}
 			seq_printf(seq, " %lu %lu %lu %lu %lu %lu %lu %lu %lu"
 			    " %lu %lu %lu\n",
-			    sd->alb_cnt, sd->alb_failed, sd->alb_pushed,
-			    sd->sbe_cnt, sd->sbe_balanced, sd->sbe_pushed,
-			    sd->sbf_cnt, sd->sbf_balanced, sd->sbf_pushed,
+			    sd->alb_count, sd->alb_failed, sd->alb_pushed,
+			    sd->sbe_count, sd->sbe_balanced, sd->sbe_pushed,
+			    sd->sbf_count, sd->sbf_balanced, sd->sbf_pushed,
 			    sd->ttwu_wake_remote, sd->ttwu_move_affine,
 			    sd->ttwu_move_balance);
 		}
@@ -101,7 +101,7 @@ rq_sched_info_arrive(struct rq *rq, unsigned long long delta)
 {
 	if (rq) {
 		rq->rq_sched_info.run_delay += delta;
-		rq->rq_sched_info.pcnt++;
+		rq->rq_sched_info.pcount++;
 	}
 }
 
@@ -164,7 +164,7 @@ static void sched_info_arrive(struct task_struct *t)
 	sched_info_dequeued(t);
 	t->sched_info.run_delay += delta;
 	t->sched_info.last_arrival = now;
-	t->sched_info.pcnt++;
+	t->sched_info.pcount++;
 
 	rq_sched_info_arrive(task_rq(t), delta);
 }