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| author | Peter Zijlstra <peterz@infradead.org> | 2024-04-03 09:50:20 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-08-17 11:06:41 +0200 |
| commit | 863ccdbb918a77e3f011571f943020bf7f0b114b (patch) | |
| tree | 35d56faa0317ed74fece1825e2c022a69c394b46 /kernel/sched/core.c | |
| parent | 3b3dd89b8bb0f03657859c22c86c19224f778638 (diff) | |
| download | linux-next-863ccdbb918a77e3f011571f943020bf7f0b114b.tar.gz linux-next-863ccdbb918a77e3f011571f943020bf7f0b114b.zip | |
sched: Allow sched_class::dequeue_task() to fail
Change the function signature of sched_class::dequeue_task() to return
a boolean, allowing future patches to 'fail' dequeue.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Tested-by: Valentin Schneider <vschneid@redhat.com>
Link: https://lkml.kernel.org/r/20240727105028.864630153@infradead.org
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index ab50100363ca..4f7a4e98f22d 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2001,7 +2001,10 @@ void enqueue_task(struct rq *rq, struct task_struct *p, int flags) sched_core_enqueue(rq, p); } -void dequeue_task(struct rq *rq, struct task_struct *p, int flags) +/* + * Must only return false when DEQUEUE_SLEEP. + */ +inline bool dequeue_task(struct rq *rq, struct task_struct *p, int flags) { if (sched_core_enabled(rq)) sched_core_dequeue(rq, p, flags); @@ -2015,7 +2018,7 @@ void dequeue_task(struct rq *rq, struct task_struct *p, int flags) } uclamp_rq_dec(rq, p); - p->sched_class->dequeue_task(rq, p, flags); + return p->sched_class->dequeue_task(rq, p, flags); } void activate_task(struct rq *rq, struct task_struct *p, int flags) |