[PATCH 1/2 v1.0]sched: Removing unused fields from /proc/schedstat

[Ciju Rajan K <ciju@linux.vnet.ibm.com>]

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This patch removes the unused statistics from /proc/schedstat. Also updates the request queue structure fields.

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Signed-off-by: Ciju Rajan K <ciju@linux.vnet.ibm.com>
---

diff -Naurp a/include/linux/sched.h b/include/linux/sched.h
--- a/include/linux/sched.h	2011-01-17 00:49:08.000000000 +0530
+++ b/include/linux/sched.h	2011-01-17 01:01:27.000000000 +0530
@@ -943,20 +943,9 @@ struct sched_domain {
 	unsigned int alb_failed;
 	unsigned int alb_pushed;
 
-	/* SD_BALANCE_EXEC stats */
-	unsigned int sbe_count;
-	unsigned int sbe_balanced;
-	unsigned int sbe_pushed;
-
-	/* SD_BALANCE_FORK stats */
-	unsigned int sbf_count;
-	unsigned int sbf_balanced;
-	unsigned int sbf_pushed;
-
 	/* try_to_wake_up() stats */
 	unsigned int ttwu_wake_remote;
 	unsigned int ttwu_move_affine;
-	unsigned int ttwu_move_balance;
 #endif
 #ifdef CONFIG_SCHED_DEBUG
 	char *name;
diff -Naurp a/kernel/sched.c b/kernel/sched.c
--- a/kernel/sched.c	2011-01-17 00:32:14.000000000 +0530
+++ b/kernel/sched.c	2011-01-17 00:38:24.000000000 +0530
@@ -545,7 +545,6 @@ struct rq {
 	unsigned int yld_count;
 
 	/* schedule() stats */
-	unsigned int sched_switch;
 	unsigned int sched_count;
 	unsigned int sched_goidle;
 
diff -Naurp a/kernel/sched_debug.c b/kernel/sched_debug.c
--- a/kernel/sched_debug.c	2011-01-17 00:31:36.000000000 +0530
+++ b/kernel/sched_debug.c	2011-01-17 00:36:52.000000000 +0530
@@ -286,7 +286,6 @@ static void print_cpu(struct seq_file *m
 
 	P(yld_count);
 
-	P(sched_switch);
 	P(sched_count);
 	P(sched_goidle);
 #ifdef CONFIG_SMP
diff -Naurp a/kernel/sched_stats.h b/kernel/sched_stats.h
--- a/kernel/sched_stats.h	2011-01-17 00:31:56.000000000 +0530
+++ b/kernel/sched_stats.h	2011-01-17 11:49:50.000000000 +0530
@@ -4,7 +4,7 @@
  * bump this up when changing the output format or the meaning of an existing
  * format, so that tools can adapt (or abort)
  */
-#define SCHEDSTAT_VERSION 15
+#define SCHEDSTAT_VERSION 16
 
 static int show_schedstat(struct seq_file *seq, void *v)
 {
@@ -26,9 +26,9 @@ static int show_schedstat(struct seq_fil
 
 		/* runqueue-specific stats */
 		seq_printf(seq,
-		    "cpu%d %u %u %u %u %u %u %llu %llu %lu",
+		    "cpu%d %u %u %u %u %u %llu %llu %lu",
 		    cpu, rq->yld_count,
-		    rq->sched_switch, rq->sched_count, rq->sched_goidle,
+		    rq->sched_count, rq->sched_goidle,
 		    rq->ttwu_count, rq->ttwu_local,
 		    rq->rq_cpu_time,
 		    rq->rq_sched_info.run_delay, rq->rq_sched_info.pcount);
@@ -57,12 +57,9 @@ static int show_schedstat(struct seq_fil
 				    sd->lb_nobusyg[itype]);
 			}
 			seq_printf(seq,
-				   " %u %u %u %u %u %u %u %u %u %u %u %u\n",
+				   " %u %u %u %u %u\n",
 			    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);
+			    sd->ttwu_wake_remote, sd->ttwu_move_affine);
 		}
 		preempt_enable();
 #endif