diff options
| author | Peter Zijlstra | 2015-06-11 14:46:37 +0200 |
|---|---|---|
| committer | Thomas Gleixner | 2015-06-19 00:25:26 +0200 |
| commit | e3fca9e7cbfb72694a21c886fcdf9f059cfded9c (patch) | |
| tree | 59d47a653d9c86b7537810344c6d5d7702785fe1 /kernel/sched/sched.h | |
| parent | Merge branch 'timers/core' into sched/hrtimers (diff) | |
| download | kernel-qcow2-linux-e3fca9e7cbfb72694a21c886fcdf9f059cfded9c.tar.gz kernel-qcow2-linux-e3fca9e7cbfb72694a21c886fcdf9f059cfded9c.tar.xz kernel-qcow2-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/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index f10a445910c9..62949ab06bc2 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -624,9 +624,10 @@ struct rq { unsigned long cpu_capacity; unsigned long cpu_capacity_orig; + struct callback_head *balance_callback; + unsigned char idle_balance; /* For active balancing */ - int post_schedule; int active_balance; int push_cpu; struct cpu_stop_work active_balance_work; @@ -767,6 +768,21 @@ extern int migrate_swap(struct task_struct *, struct task_struct *); #ifdef CONFIG_SMP +static inline void +queue_balance_callback(struct rq *rq, + struct callback_head *head, + void (*func)(struct rq *rq)) +{ + lockdep_assert_held(&rq->lock); + + if (unlikely(head->next)) + return; + + head->func = (void (*)(struct callback_head *))func; + head->next = rq->balance_callback; + rq->balance_callback = head; +} + extern void sched_ttwu_pending(void); #define rcu_dereference_check_sched_domain(p) \ @@ -1192,7 +1208,6 @@ struct sched_class { int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags); void (*migrate_task_rq)(struct task_struct *p, int next_cpu); - void (*post_schedule) (struct rq *this_rq); void (*task_waking) (struct task_struct *task); void (*task_woken) (struct rq *this_rq, struct task_struct *task); |