linux-kernel - [PATCH 12/23] sched,powercap: Convert to sched_set

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Message-Id: <20200422112831.928975262@infradead.org>
Date:   Wed, 22 Apr 2020 13:27:31 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     mingo@...nel.org, linux-kernel@...r.kernel.org
Cc:     tglx@...utronix.de, rostedt@...dmis.org, qais.yousef@....com,
        juri.lelli@...hat.com, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, bsegall@...gle.com, mgorman@...e.de,
        peterz@...radead.org, daniel.lezcano@...aro.org,
        rafael.j.wysocki@...el.com
Subject: [PATCH 12/23] sched,powercap: Convert to sched_set_fifo*()

Because SCHED_FIFO is a broken scheduler model (see previous patches)
take away the priority field, the kernel can't possibly make an
informed decision.

Effectively no change.

Cc: daniel.lezcano@...aro.org
Cc: rafael.j.wysocki@...el.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Ingo Molnar <mingo@...nel.org>
---
 drivers/powercap/idle_inject.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/powercap/idle_inject.c
+++ b/drivers/powercap/idle_inject.c
@@ -255,9 +255,7 @@ void idle_inject_stop(struct idle_inject
  */
 static void idle_inject_setup(unsigned int cpu)
 {
-	struct sched_param param = { .sched_priority = MAX_USER_RT_PRIO / 2 };
-
-	sched_setscheduler(current, SCHED_FIFO, &param);
+	sched_set_fifo(current);
 }
 
 /**