linux-kernel - [tip:sched/core] sched/core: Remove rq->cpu

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Date:   Mon, 3 Jun 2019 06:04:14 -0700
From:   tip-bot for Dietmar Eggemann <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     peterz@...radead.org, valentin.schneider@....com,
        linux-kernel@...r.kernel.org, vincent.guittot@...aro.org,
        fweisbec@...il.com, tglx@...utronix.de, dietmar.eggemann@....com,
        torvalds@...ux-foundation.org, mingo@...nel.org,
        morten.rasmussen@....com, hpa@...or.com, quentin.perret@....com,
        patrick.bellasi@....com, riel@...riel.com
Subject: [tip:sched/core] sched/core: Remove rq->cpu_load[]

Commit-ID:  55627e3cd22c315c4a02fe3bbbb7234ec439cb1d
Gitweb:     https://git.kernel.org/tip/55627e3cd22c315c4a02fe3bbbb7234ec439cb1d
Author:     Dietmar Eggemann <dietmar.eggemann@....com>
AuthorDate: Mon, 27 May 2019 07:21:13 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 3 Jun 2019 11:49:40 +0200

sched/core: Remove rq->cpu_load[]

The per rq load array values also disappear from the cpu#X sections in
/proc/sched_debug.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@....com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Acked-by: Rik van Riel <riel@...riel.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@....com>
Cc: Patrick Bellasi <patrick.bellasi@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Quentin Perret <quentin.perret@....com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Valentin Schneider <valentin.schneider@....com>
Cc: Vincent Guittot <vincent.guittot@...aro.org>
Link: https://lkml.kernel.org/r/20190527062116.11512-5-dietmar.eggemann@arm.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/sched/core.c  | 6 +-----
 kernel/sched/debug.c | 5 -----
 kernel/sched/sched.h | 2 --
 3 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 00b8966802a8..29984d8c41f0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5901,8 +5901,8 @@ DECLARE_PER_CPU(cpumask_var_t, select_idle_mask);
 
 void __init sched_init(void)
 {
-	int i, j;
 	unsigned long alloc_size = 0, ptr;
+	int i;
 
 	wait_bit_init();
 
@@ -6004,10 +6004,6 @@ void __init sched_init(void)
 #ifdef CONFIG_RT_GROUP_SCHED
 		init_tg_rt_entry(&root_task_group, &rq->rt, NULL, i, NULL);
 #endif
-
-		for (j = 0; j < CPU_LOAD_IDX_MAX; j++)
-			rq->cpu_load[j] = 0;
-
 #ifdef CONFIG_SMP
 		rq->sd = NULL;
 		rq->rd = NULL;
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 5c7b066d7de6..a0b0d6e21e5b 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -654,11 +654,6 @@ do {									\
 	SEQ_printf(m, "  .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr)));
 	PN(clock);
 	PN(clock_task);
-	P(cpu_load[0]);
-	P(cpu_load[1]);
-	P(cpu_load[2]);
-	P(cpu_load[3]);
-	P(cpu_load[4]);
 #undef P
 #undef PN
 
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 3750b5e53792..607859a18b2a 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -812,8 +812,6 @@ struct rq {
 	unsigned int		nr_preferred_running;
 	unsigned int		numa_migrate_on;
 #endif
-	#define CPU_LOAD_IDX_MAX 5
-	unsigned long		cpu_load[CPU_LOAD_IDX_MAX];
 #ifdef CONFIG_NO_HZ_COMMON
 #ifdef CONFIG_SMP
 	unsigned long		last_load_update_tick;