linux-kernel - [PATCH 1/4] sched/pelt: Remove redundant cap

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Date:   Wed,  3 Jun 2020 10:03:01 +0200
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] sched/pelt: Remove redundant cap_scale() definition

Besides in PELT cap_scale() is used in the Deadline scheduler class for
scale-invariant bandwidth enforcement.
Remove the cap_scale() definition in kernel/sched/pelt.c and keep the
one in kernel/sched/sched.h.

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@....com>
---
 kernel/sched/pelt.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/sched/pelt.c b/kernel/sched/pelt.c
index b4b1ff96642f..dea5567e4f72 100644
--- a/kernel/sched/pelt.c
+++ b/kernel/sched/pelt.c
@@ -83,8 +83,6 @@ static u32 __accumulate_pelt_segments(u64 periods, u32 d1, u32 d3)
 	return c1 + c2 + c3;
 }
 
-#define cap_scale(v, s) ((v)*(s) >> SCHED_CAPACITY_SHIFT)
-
 /*
  * Accumulate the three separate parts of the sum; d1 the remainder
  * of the last (incomplete) period, d2 the span of full periods and d3
-- 
2.17.1