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author | Ingo Molnar <mingo@elte.hu> | 2008-11-19 09:44:37 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-11-19 09:44:37 +0100 |
commit | 3ac3ba0b396fd99550e08034b0e4c27fdf39c252 (patch) | |
tree | f9f69fac41d66540a37a33808714d055d702328f /kernel/sched.c | |
parent | 934352f214b3251eb0793c1209d346595a661d80 (diff) | |
parent | 7f0f598a0069d1ab072375965a4b69137233169c (diff) | |
download | op-kernel-dev-3ac3ba0b396fd99550e08034b0e4c27fdf39c252.zip op-kernel-dev-3ac3ba0b396fd99550e08034b0e4c27fdf39c252.tar.gz |
Merge branch 'linus' into sched/core
Conflicts:
kernel/Makefile
Diffstat (limited to 'kernel/sched.c')
-rw-r--r-- | kernel/sched.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index ebaf432..a4c156d 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -399,7 +399,7 @@ struct cfs_rq { */ struct sched_entity *curr, *next, *last; - unsigned long nr_spread_over; + unsigned int nr_spread_over; #ifdef CONFIG_FAIR_GROUP_SCHED struct rq *rq; /* cpu runqueue to which this cfs_rq is attached */ @@ -949,6 +949,14 @@ static struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags) } } +void task_rq_unlock_wait(struct task_struct *p) +{ + struct rq *rq = task_rq(p); + + smp_mb(); /* spin-unlock-wait is not a full memory barrier */ + spin_unlock_wait(&rq->lock); +} + static void __task_rq_unlock(struct rq *rq) __releases(rq->lock) { @@ -1428,6 +1436,8 @@ static unsigned long cpu_avg_load_per_task(int cpu) if (rq->nr_running) rq->avg_load_per_task = rq->load.weight / rq->nr_running; + else + rq->avg_load_per_task = 0; return rq->avg_load_per_task; } @@ -5840,6 +5850,8 @@ void __cpuinit init_idle(struct task_struct *idle, int cpu) struct rq *rq = cpu_rq(cpu); unsigned long flags; + spin_lock_irqsave(&rq->lock, flags); + __sched_fork(idle); idle->se.exec_start = sched_clock(); @@ -5847,7 +5859,6 @@ void __cpuinit init_idle(struct task_struct *idle, int cpu) idle->cpus_allowed = cpumask_of_cpu(cpu); __set_task_cpu(idle, cpu); - spin_lock_irqsave(&rq->lock, flags); rq->curr = rq->idle = idle; #if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW) idle->oncpu = 1; @@ -7740,13 +7751,14 @@ static int dattrs_equal(struct sched_domain_attr *cur, int idx_cur, * * The passed in 'doms_new' should be kmalloc'd. This routine takes * ownership of it and will kfree it when done with it. If the caller - * failed the kmalloc call, then it can pass in doms_new == NULL, - * and partition_sched_domains() will fallback to the single partition - * 'fallback_doms', it also forces the domains to be rebuilt. + * failed the kmalloc call, then it can pass in doms_new == NULL && + * ndoms_new == 1, and partition_sched_domains() will fallback to + * the single partition 'fallback_doms', it also forces the domains + * to be rebuilt. * - * If doms_new==NULL it will be replaced with cpu_online_map. - * ndoms_new==0 is a special case for destroying existing domains. - * It will not create the default domain. + * If doms_new == NULL it will be replaced with cpu_online_map. + * ndoms_new == 0 is a special case for destroying existing domains, + * and it will not create the default domain. * * Call with hotplug lock held */ |