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| author | Peter Zijlstra <peterz@infradead.org> | 2024-08-14 00:25:56 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-09-03 15:26:32 +0200 |
| commit | b2d70222dbf2a2ff7a972a685d249a5d75afa87f (patch) | |
| tree | 44cd70aefffd4238abb82da3cbe6ff79c39e12e3 /kernel/sched/fair.c | |
| parent | bd9bbc96e8356886971317f57994247ca491dbf1 (diff) | |
| download | lwn-b2d70222dbf2a2ff7a972a685d249a5d75afa87f.tar.gz lwn-b2d70222dbf2a2ff7a972a685d249a5d75afa87f.zip | |
sched: Add put_prev_task(.next)
In order to tell the previous sched_class what the next task is, add
put_prev_task(.next).
Notable SCX will use this to:
1) determine the next task will leave the SCX sched class and push
the current task to another CPU if possible.
2) statistics on how often and which other classes preempt it
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240813224016.367421076@infradead.org
Diffstat (limited to 'kernel/sched/fair.c')
| -rw-r--r-- | kernel/sched/fair.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index f67311217063..d697a0a3fc73 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8869,7 +8869,7 @@ void fair_server_init(struct rq *rq) /* * Account for a descheduled task: */ -static void put_prev_task_fair(struct rq *rq, struct task_struct *prev) +static void put_prev_task_fair(struct rq *rq, struct task_struct *prev, struct task_struct *next) { struct sched_entity *se = &prev->se; struct cfs_rq *cfs_rq; |