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| author | Peter Zijlstra <peterz@infradead.org> | 2019-05-29 22:36:40 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2019-08-08 09:09:30 +0200 |
| commit | f95d4eaee6d0207bff2dc93371133d31227d4cfb (patch) | |
| tree | a0225a0b9c0c9785130f8149331821ff1132144c /kernel/sched/deadline.c | |
| parent | sched: Fix kerneldoc comment for ia64_set_curr_task (diff) | |
| download | linux-f95d4eaee6d0207bff2dc93371133d31227d4cfb.tar.xz linux-f95d4eaee6d0207bff2dc93371133d31227d4cfb.zip | |
sched/{rt,deadline}: Fix set_next_task vs pick_next_task
Because pick_next_task() implies set_curr_task() and some of the
details haven't mattered too much, some of what _should_ be in
set_curr_task() ended up in pick_next_task, correct this.
This prepares the way for a pick_next_task() variant that does not
affect the current state; allowing remote picking.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Aaron Lu <aaron.lwe@gmail.com>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: mingo@kernel.org
Cc: Phil Auld <pauld@redhat.com>
Cc: Julien Desfossez <jdesfossez@digitalocean.com>
Cc: Nishanth Aravamudan <naravamudan@digitalocean.com>
Link: https://lkml.kernel.org/r/38c61d5240553e043c27c5e00b9dd0d184dd6081.1559129225.git.vpillai@digitalocean.com
Diffstat (limited to 'kernel/sched/deadline.c')
| -rw-r--r-- | kernel/sched/deadline.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 039dde2b1dac..2dc2784b196c 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1727,12 +1727,20 @@ static void start_hrtick_dl(struct rq *rq, struct task_struct *p) } #endif -static inline void set_next_task(struct rq *rq, struct task_struct *p) +static void set_next_task_dl(struct rq *rq, struct task_struct *p) { p->se.exec_start = rq_clock_task(rq); /* You can't push away the running task */ dequeue_pushable_dl_task(rq, p); + + if (hrtick_enabled(rq)) + start_hrtick_dl(rq, p); + + if (rq->curr->sched_class != &dl_sched_class) + update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 0); + + deadline_queue_push_tasks(rq); } static struct sched_dl_entity *pick_next_dl_entity(struct rq *rq, @@ -1791,15 +1799,7 @@ pick_next_task_dl(struct rq *rq, struct task_struct *prev, struct rq_flags *rf) p = dl_task_of(dl_se); - set_next_task(rq, p); - - if (hrtick_enabled(rq)) - start_hrtick_dl(rq, p); - - deadline_queue_push_tasks(rq); - - if (rq->curr->sched_class != &dl_sched_class) - update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 0); + set_next_task_dl(rq, p); return p; } @@ -1846,7 +1846,7 @@ static void task_fork_dl(struct task_struct *p) static void set_curr_task_dl(struct rq *rq) { - set_next_task(rq, rq->curr); + set_next_task_dl(rq, rq->curr); } #ifdef CONFIG_SMP |