linux-kernel - [tip: sched/urgent] sched/core: Remove unused rq::last_load_update

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Date:   Wed, 08 Apr 2020 12:20:24 -0000
From:   "tip-bot2 for Vincent Donnefort" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Dietmar Eggemann <dietmar.eggemann@....com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Vincent Donnefort <vincent.donnefort@....com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: sched/urgent] sched/core: Remove unused rq::last_load_update_tick

The following commit has been merged into the sched/urgent branch of tip:

Commit-ID:     275b2f6723ab9173484e1055ae138d4c2dd9d7c5
Gitweb:        https://git.kernel.org/tip/275b2f6723ab9173484e1055ae138d4c2dd9d7c5
Author:        Vincent Donnefort <vincent.donnefort@....com>
AuthorDate:    Fri, 20 Mar 2020 13:21:35 
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Wed, 08 Apr 2020 11:35:23 +02:00

sched/core: Remove unused rq::last_load_update_tick

The following commit:

  5e83eafbfd3b ("sched/fair: Remove the rq->cpu_load[] update code")

eliminated the last use case for rq->last_load_update_tick, so remove
the field as well.

Reviewed-by: Dietmar Eggemann <dietmar.eggemann@....com>
Reviewed-by: Vincent Guittot <vincent.guittot@...aro.org>
Signed-off-by: Vincent Donnefort <vincent.donnefort@....com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Link: https://lkml.kernel.org/r/1584710495-308969-1-git-send-email-vincent.donnefort@arm.com
---
 kernel/sched/core.c  | 1 -
 kernel/sched/sched.h | 1 -
 2 files changed, 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c3d12e3..3a61a3b 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6694,7 +6694,6 @@ void __init sched_init(void)
 
 		rq_attach_root(rq, &def_root_domain);
 #ifdef CONFIG_NO_HZ_COMMON
-		rq->last_load_update_tick = jiffies;
 		rq->last_blocked_load_update_tick = jiffies;
 		atomic_set(&rq->nohz_flags, 0);
 #endif
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index cd00814..db3a576 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -888,7 +888,6 @@ struct rq {
 #endif
 #ifdef CONFIG_NO_HZ_COMMON
 #ifdef CONFIG_SMP
-	unsigned long		last_load_update_tick;
 	unsigned long		last_blocked_load_update_tick;
 	unsigned int		has_blocked_load;
 #endif /* CONFIG_SMP */