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From 749853275a78273fb2b8541acb5c1cad4c1242a3 Mon Sep 17 00:00:00 2001
From: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Date: Tue, 21 Aug 2018 18:59:08 +0530
Subject: [PATCH 0709/2940] drm/scheduler: avoid redundant shifting of the
entity v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
do not remove entity from the rq if the current rq is from
the least loaded scheduler.
Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/scheduler/sched_entity.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c
index 812e3530ea25..4e5e95c0cab5 100644
--- a/drivers/gpu/drm/scheduler/sched_entity.c
+++ b/drivers/gpu/drm/scheduler/sched_entity.c
@@ -476,6 +476,9 @@ void drm_sched_entity_select_rq(struct drm_sched_entity *entity)
return;
rq = drm_sched_entity_get_free_sched(entity);
+ if (rq == entity->rq)
+ return;
+
spin_lock(&entity->rq_lock);
drm_sched_rq_remove_entity(entity->rq, entity);
entity->rq = rq;
--
2.17.1
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