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authorLi Zefan <lizf@cn.fujitsu.com>2008-10-22 15:25:26 +0800
committerIngo Molnar <mingo@elte.hu>2008-10-22 10:01:52 +0200
commit4ce72a2c063a7fa8e42a9435440ae3364115a58d (patch)
tree427b25960945524a205c7d8ed20ed5f02325175e /include
parent0c4b83da58ec2e96ce9c44c211d6eac5f9dae478 (diff)
downloadop-kernel-dev-4ce72a2c063a7fa8e42a9435440ae3364115a58d.zip
op-kernel-dev-4ce72a2c063a7fa8e42a9435440ae3364115a58d.tar.gz
sched: add CONFIG_SMP consistency
a patch from Henrik Austad did this: >> Do not declare select_task_rq as part of sched_class when CONFIG_SMP is >> not set. Peter observed: > While a proper cleanup, could you do it by re-arranging the methods so > as to not create an additional ifdef? Do not declare select_task_rq and some other methods as part of sched_class when CONFIG_SMP is not set. Also gather those methods to avoid CONFIG_SMP mess. Idea-by: Henrik Austad <henrik.austad@gmail.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Henrik Austad <henrik@austad.us> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r--include/linux/sched.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4f59c8e..c05b45f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -897,7 +897,6 @@ struct sched_class {
void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup);
void (*dequeue_task) (struct rq *rq, struct task_struct *p, int sleep);
void (*yield_task) (struct rq *rq);
- int (*select_task_rq)(struct task_struct *p, int sync);
void (*check_preempt_curr) (struct rq *rq, struct task_struct *p, int sync);
@@ -905,6 +904,8 @@ struct sched_class {
void (*put_prev_task) (struct rq *rq, struct task_struct *p);
#ifdef CONFIG_SMP
+ int (*select_task_rq)(struct task_struct *p, int sync);
+
unsigned long (*load_balance) (struct rq *this_rq, int this_cpu,
struct rq *busiest, unsigned long max_load_move,
struct sched_domain *sd, enum cpu_idle_type idle,
@@ -916,16 +917,17 @@ struct sched_class {
void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
void (*post_schedule) (struct rq *this_rq);
void (*task_wake_up) (struct rq *this_rq, struct task_struct *task);
-#endif
- void (*set_curr_task) (struct rq *rq);
- void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
- void (*task_new) (struct rq *rq, struct task_struct *p);
void (*set_cpus_allowed)(struct task_struct *p,
const cpumask_t *newmask);
void (*rq_online)(struct rq *rq);
void (*rq_offline)(struct rq *rq);
+#endif
+
+ void (*set_curr_task) (struct rq *rq);
+ void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
+ void (*task_new) (struct rq *rq, struct task_struct *p);
void (*switched_from) (struct rq *this_rq, struct task_struct *task,
int running);
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