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init: move setup of nr_cpu_ids to as early as possible

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Move the setting of nr_cpu_ids from sched_init() to start_kernel()
so that it's available as early as possible.

Note that an arch has the option of setting it even earlier if need be,
but it should not result in a different value than the setup_nr_cpu_ids()
function.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Mike Travis
2008-03-26 14:23:48 -07:00
committed by Ingo Molnar
parent 4bdbaad33d
commit e0982e90cd
2 changed files with 17 additions and 7 deletions
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7
kernel/sched.c
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@@ -6116,10 +6116,6 @@ void __init migration_init(void)
#ifdef CONFIG_SMP
/* Number of possible processor ids */
int nr_cpu_ids __read_mostly = NR_CPUS;
EXPORT_SYMBOL(nr_cpu_ids);
#ifdef CONFIG_SCHED_DEBUG
static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
@@ -7478,7 +7474,6 @@ static void init_tg_rt_entry(struct rq *rq, struct task_group *tg,
void __init sched_init(void)
{
int highest_cpu = 0;
int i, j;
unsigned long alloc_size = 0, ptr;
@@ -7569,7 +7564,6 @@ void __init sched_init(void)
#endif
init_rq_hrtick(rq);
atomic_set(&rq->nr_iowait, 0);
highest_cpu = i;
}
set_load_weight(&init_task);
@@ -7579,7 +7573,6 @@ void __init sched_init(void)
#endif
#ifdef CONFIG_SMP
nr_cpu_ids = highest_cpu + 1;
open_softirq(SCHED_SOFTIRQ, run_rebalance_domains, NULL);
#endif