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Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched

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* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched:
  sched: Fix bug in SCHED_IDLE interaction with group scheduling
  sched: Fix rt_rq->pushable_tasks initialization in init_rt_rq()
  sched: Reset sched stats on fork()
  sched_rt: Fix overload bug on rt group scheduling
  sched: Documentation/sched-rt-group: Fix style issues & bump version
This commit is contained in:
Linus Torvalds 2009-07-16 10:18:29 -07:00
commit 4b0a84043e
4 changed files with 59 additions and 18 deletions
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43
kernel/sched.c
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@ -493,6 +493,7 @@ struct rt_rq {
#endif
#ifdef CONFIG_SMP
unsigned long rt_nr_migratory;
unsigned long rt_nr_total;
int overloaded;
struct plist_head pushable_tasks;
#endif
@ -2571,15 +2572,37 @@ static void __sched_fork(struct task_struct *p)
p->se.avg_wakeup = sysctl_sched_wakeup_granularity;
#ifdef CONFIG_SCHEDSTATS
p->se.wait_start = 0;
p->se.sum_sleep_runtime = 0;
p->se.sleep_start = 0;
p->se.block_start = 0;
p->se.sleep_max = 0;
p->se.block_max = 0;
p->se.exec_max = 0;
p->se.slice_max = 0;
p->se.wait_max = 0;
p->se.wait_start = 0;
p->se.wait_max = 0;
p->se.wait_count = 0;
p->se.wait_sum = 0;
p->se.sleep_start = 0;
p->se.sleep_max = 0;
p->se.sum_sleep_runtime = 0;
p->se.block_start = 0;
p->se.block_max = 0;
p->se.exec_max = 0;
p->se.slice_max = 0;
p->se.nr_migrations_cold = 0;
p->se.nr_failed_migrations_affine = 0;
p->se.nr_failed_migrations_running = 0;
p->se.nr_failed_migrations_hot = 0;
p->se.nr_forced_migrations = 0;
p->se.nr_forced2_migrations = 0;
p->se.nr_wakeups = 0;
p->se.nr_wakeups_sync = 0;
p->se.nr_wakeups_migrate = 0;
p->se.nr_wakeups_local = 0;
p->se.nr_wakeups_remote = 0;
p->se.nr_wakeups_affine = 0;
p->se.nr_wakeups_affine_attempts = 0;
p->se.nr_wakeups_passive = 0;
p->se.nr_wakeups_idle = 0;
#endif
INIT_LIST_HEAD(&p->rt.run_list);
@ -9074,7 +9097,7 @@ static void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
#ifdef CONFIG_SMP
rt_rq->rt_nr_migratory = 0;
rt_rq->overloaded = 0;
plist_head_init(&rq->rt.pushable_tasks, &rq->lock);
plist_head_init(&rt_rq->pushable_tasks, &rq->lock);
#endif
rt_rq->rt_time = 0;