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| author | Peter Zijlstra <peterz@infradead.org> | 2015-06-11 14:46:37 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-19 00:25:26 +0200 |
| commit | e3fca9e7cbfb72694a21c886fcdf9f059cfded9c (patch) | |
| tree | 59d47a653d9c86b7537810344c6d5d7702785fe1 /kernel/sched/deadline.c | |
| parent | 624bbdfac99c50bf03dff9a0023f666b8e965627 (diff) | |
| download | blackbird-op-linux-e3fca9e7cbfb72694a21c886fcdf9f059cfded9c.tar.gz blackbird-op-linux-e3fca9e7cbfb72694a21c886fcdf9f059cfded9c.zip | |
sched: Replace post_schedule with a balance callback list
Generalize the post_schedule() stuff into a balance callback list.
This allows us to more easily use it outside of schedule() and cross
sched_class.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: ktkhai@parallels.com
Cc: rostedt@goodmis.org
Cc: juri.lelli@gmail.com
Cc: pang.xunlei@linaro.org
Cc: oleg@redhat.com
Cc: wanpeng.li@linux.intel.com
Cc: umgwanakikbuti@gmail.com
Link: http://lkml.kernel.org/r/20150611124742.424032725@infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/sched/deadline.c')
| -rw-r--r-- | kernel/sched/deadline.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 7a08d590990e..d80523fb1de5 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -213,9 +213,16 @@ static inline bool need_pull_dl_task(struct rq *rq, struct task_struct *prev) return dl_task(prev); } -static inline void set_post_schedule(struct rq *rq) +static DEFINE_PER_CPU(struct callback_head, dl_balance_head); + +static void push_dl_tasks(struct rq *); + +static inline void queue_push_tasks(struct rq *rq) { - rq->post_schedule = has_pushable_dl_tasks(rq); + if (!has_pushable_dl_tasks(rq)) + return; + + queue_balance_callback(rq, &per_cpu(dl_balance_head, rq->cpu), push_dl_tasks); } static struct rq *find_lock_later_rq(struct task_struct *task, struct rq *rq); @@ -296,7 +303,7 @@ static inline int pull_dl_task(struct rq *rq) return 0; } -static inline void set_post_schedule(struct rq *rq) +static inline void queue_push_tasks(struct rq *rq) { } #endif /* CONFIG_SMP */ @@ -1126,7 +1133,7 @@ struct task_struct *pick_next_task_dl(struct rq *rq, struct task_struct *prev) if (hrtick_enabled(rq)) start_hrtick_dl(rq, p); - set_post_schedule(rq); + queue_push_tasks(rq); return p; } @@ -1544,11 +1551,6 @@ skip: return ret; } -static void post_schedule_dl(struct rq *rq) -{ - push_dl_tasks(rq); -} - /* * Since the task is not running and a reschedule is not going to happen * anytime soon on its runqueue, we try pushing it away now. @@ -1784,7 +1786,6 @@ const struct sched_class dl_sched_class = { .set_cpus_allowed = set_cpus_allowed_dl, .rq_online = rq_online_dl, .rq_offline = rq_offline_dl, - .post_schedule = post_schedule_dl, .task_woken = task_woken_dl, #endif |
