[PATCH 2/2] sched/fair: Update comments regarding last and skip buddy

From: Adam Li
Date: Sun Nov 24 2024 - 21:13:54 EST


Commit 5e963f2bd465 ("sched/fair: Commit to EEVDF") removed the "last" and
"skip" buddy. Update comments in pick_next_entity().

Signed-off-by: Adam Li <adamli@xxxxxxxxxxxxxxxxxxxxxx>
---
kernel/sched/fair.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index cd1188b7f3df..d8826a8e0c77 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5602,17 +5602,11 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)

static int dequeue_entities(struct rq *rq, struct sched_entity *se, int flags);

-/*
- * Pick the next process, keeping these things in mind, in this order:
- * 1) keep things fair between processes/task groups
- * 2) pick the "next" process, since someone really wants that to run
- * 3) pick the "last" process, for cache locality
- * 4) do not run the "skip" process, if something else is available
- */
static struct sched_entity *
pick_next_entity(struct rq *rq, struct cfs_rq *cfs_rq)
{
/*
+ * Pick the "next" buddy, since someone really wants that to run.
* Enabling NEXT_BUDDY will affect latency but not fairness.
*/
if (sched_feat(NEXT_BUDDY) &&
--
2.25.1