diff options
author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-03-24 16:38:48 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2010-04-02 20:12:05 +0200 |
commit | 371fd7e7a56a5c136d31aa980011bd2f131c3ef5 (patch) | |
tree | cf52014018e8258acd8bcfd486d855f098a02c03 /include/linux/sched.h | |
parent | cc87f76a601d2d256118f7bab15e35254356ae21 (diff) | |
download | kernel_samsung_espresso10-371fd7e7a56a5c136d31aa980011bd2f131c3ef5.zip kernel_samsung_espresso10-371fd7e7a56a5c136d31aa980011bd2f131c3ef5.tar.gz kernel_samsung_espresso10-371fd7e7a56a5c136d31aa980011bd2f131c3ef5.tar.bz2 |
sched: Add enqueue/dequeue flags
In order to reduce the dependency on TASK_WAKING rework the enqueue
interface to support a proper flags field.
Replace the int wakeup, bool head arguments with an int flags argument
and create the following flags:
ENQUEUE_WAKEUP - the enqueue is a wakeup of a sleeping task,
ENQUEUE_WAKING - the enqueue has relative vruntime due to
having sched_class::task_waking() called,
ENQUEUE_HEAD - the waking task should be places on the head
of the priority queue (where appropriate).
For symmetry also convert sched_class::dequeue() to a flags scheme.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r-- | include/linux/sched.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index fb6c188..e3e900f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1032,12 +1032,17 @@ struct sched_domain; #define WF_SYNC 0x01 /* waker goes to sleep after wakup */ #define WF_FORK 0x02 /* child wakeup after fork */ +#define ENQUEUE_WAKEUP 1 +#define ENQUEUE_WAKING 2 +#define ENQUEUE_HEAD 4 + +#define DEQUEUE_SLEEP 1 + struct sched_class { const struct sched_class *next; - void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup, - bool head); - void (*dequeue_task) (struct rq *rq, struct task_struct *p, int sleep); + void (*enqueue_task) (struct rq *rq, struct task_struct *p, int flags); + void (*dequeue_task) (struct rq *rq, struct task_struct *p, int flags); void (*yield_task) (struct rq *rq); void (*check_preempt_curr) (struct rq *rq, struct task_struct *p, int flags); |