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| author |   Peter Zijlstra <peterz@infradead.org> | 2021-03-26 18:55:06 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-12 11:43:31 +0200 |
| commit | 6e33cad0af49336952e5541464bd02f5b5fd433e (patch) | |
| tree | 64b10f6b66b84f1f2da4b86beb0a9f89cff96a66 /kernel/sched/sched.h | |
| parent | sched: Migration changes for core scheduling (diff) | |
| download | linux-dev-6e33cad0af49336952e5541464bd02f5b5fd433e.tar.xz linux-dev-6e33cad0af49336952e5541464bd02f5b5fd433e.zip | |
sched: Trivial core scheduling cookie management
In order to not have to use pid_struct, create a new, smaller,
structure to manage task cookies for core scheduling.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Don Hiatt <dhiatt@digitalocean.com>
Tested-by: Hongyu Ning <hongyu.ning@linux.intel.com>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20210422123308.919768100@infradead.org
Diffstat (limited to '')
| -rw-r--r-- | kernel/sched/sched.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 3878386a0a02..904c52b560d1 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1229,6 +1229,22 @@ static inline bool sched_group_cookie_match(struct rq *rq, extern void queue_core_balance(struct rq *rq); +static inline bool sched_core_enqueued(struct task_struct *p) +{ + return !RB_EMPTY_NODE(&p->core_node); +} + +extern void sched_core_enqueue(struct rq *rq, struct task_struct *p); +extern void sched_core_dequeue(struct rq *rq, struct task_struct *p); + +extern void sched_core_get(void); +extern void sched_core_put(void); + +extern unsigned long sched_core_alloc_cookie(void); +extern void sched_core_put_cookie(unsigned long cookie); +extern unsigned long sched_core_get_cookie(unsigned long cookie); +extern unsigned long sched_core_update_cookie(struct task_struct *p, unsigned long cookie); + #else /* !CONFIG_SCHED_CORE */ static inline bool sched_core_enabled(struct rq *rq) |