From 93ef36d70f0bbc3b2b17dfe26101ccef49acb535 Mon Sep 17 00:00:00 2001
From: Qian Cai <cai@lca.pw>
Date: Thu, 19 Dec 2019 09:03:14 -0500
Subject: [PATCH] sched/core: Remove unused variable from set_user_nice()
References: bnc#1155798 (CPU scheduler functional and performance backports)
Patch-mainline: v5.6-rc1
Git-commit: 53a23364b6b0c679a8ecfc48e74d652f18e3631f
This commit left behind an unused variable:
5443a0be6121 ("sched: Use fair:prio_changed() instead of ad-hoc implementation") left behind an unused variable.
kernel/sched/core.c: In function 'set_user_nice':
kernel/sched/core.c:4507:16: warning: variable 'delta' set but not used
int old_prio, delta;
^~~~~
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 5443a0be6121 ("sched: Use fair:prio_changed() instead of ad-hoc implementation")
Link: https://lkml.kernel.org/r/20191219140314.1252-1-cai@lca.pw
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
kernel/sched/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index dfd0733ccafa..2e8a8eb15b6e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4358,7 +4358,7 @@ static inline int rt_effective_prio(struct task_struct *p, int prio)
void set_user_nice(struct task_struct *p, long nice)
{
bool queued, running;
- int old_prio, delta;
+ int old_prio;
struct rq_flags rf;
struct rq *rq;
@@ -4392,7 +4392,6 @@ void set_user_nice(struct task_struct *p, long nice)
set_load_weight(p, true);
old_prio = p->prio;
p->prio = effective_prio(p);
- delta = p->prio - old_prio;
if (queued)
enqueue_task(rq, p, ENQUEUE_RESTORE | ENQUEUE_NOCLOCK);