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Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched 

* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
  sched: run_rebalance_domains: s/SCHED_IDLE/CPU_IDLE/
  sched: fix sleeper bonus
  sched: make global code static
This commit is contained in:
Linus Torvalds 2007-08-12 11:06:45 -07:00
parent cc75b92d11 de0cf899bb
commit 738ddd3039
3 changed files with 36 additions and 38 deletions
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2
include/linux/cpu.h
View File

@ -41,8 +41,6 @@ extern void cpu_remove_sysdev_attr(struct sysdev_attribute *attr);
extern int cpu_add_sysdev_attr_group(struct attribute_group *attrs);
extern void cpu_remove_sysdev_attr_group(struct attribute_group *attrs);
extern struct sysdev_attribute attr_sched_mc_power_savings;
extern struct sysdev_attribute attr_sched_smt_power_savings;
extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls);
#ifdef CONFIG_HOTPLUG_CPU

60
kernel/sched.c
View File

@ -3106,7 +3106,7 @@ static void run_rebalance_domains(struct softirq_action *h)
if (need_resched())
break;
rebalance_domains(balance_cpu, SCHED_IDLE);
rebalance_domains(balance_cpu, CPU_IDLE);
rq = cpu_rq(balance_cpu);
if (time_after(this_rq->next_balance, rq->next_balance))
@ -6328,7 +6328,7 @@ int partition_sched_domains(cpumask_t *partition1, cpumask_t *partition2)
}
#if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT)
int arch_reinit_sched_domains(void)
static int arch_reinit_sched_domains(void)
{
int err;
@ -6357,6 +6357,34 @@ static ssize_t sched_power_savings_store(const char *buf, size_t count, int smt)
return ret ? ret : count;
}
#ifdef CONFIG_SCHED_MC
static ssize_t sched_mc_power_savings_show(struct sys_device *dev, char *page)
{
return sprintf(page, "%u\n", sched_mc_power_savings);
}
static ssize_t sched_mc_power_savings_store(struct sys_device *dev,
const char *buf, size_t count)
{
return sched_power_savings_store(buf, count, 0);
}
static SYSDEV_ATTR(sched_mc_power_savings, 0644, sched_mc_power_savings_show,
sched_mc_power_savings_store);
#endif
#ifdef CONFIG_SCHED_SMT
static ssize_t sched_smt_power_savings_show(struct sys_device *dev, char *page)
{
return sprintf(page, "%u\n", sched_smt_power_savings);
}
static ssize_t sched_smt_power_savings_store(struct sys_device *dev,
const char *buf, size_t count)
{
return sched_power_savings_store(buf, count, 1);
}
static SYSDEV_ATTR(sched_smt_power_savings, 0644, sched_smt_power_savings_show,
sched_smt_power_savings_store);
#endif
int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls)
{
int err = 0;
@ -6375,34 +6403,6 @@ int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls)
}
#endif
#ifdef CONFIG_SCHED_MC
static ssize_t sched_mc_power_savings_show(struct sys_device *dev, char *page)
{
return sprintf(page, "%u\n", sched_mc_power_savings);
}
static ssize_t sched_mc_power_savings_store(struct sys_device *dev,
const char *buf, size_t count)
{
return sched_power_savings_store(buf, count, 0);
}
SYSDEV_ATTR(sched_mc_power_savings, 0644, sched_mc_power_savings_show,
sched_mc_power_savings_store);
#endif
#ifdef CONFIG_SCHED_SMT
static ssize_t sched_smt_power_savings_show(struct sys_device *dev, char *page)
{
return sprintf(page, "%u\n", sched_smt_power_savings);
}
static ssize_t sched_smt_power_savings_store(struct sys_device *dev,
const char *buf, size_t count)
{
return sched_power_savings_store(buf, count, 1);
}
SYSDEV_ATTR(sched_smt_power_savings, 0644, sched_smt_power_savings_show,
sched_smt_power_savings_store);
#endif
/*
* Force a reinitialization of the sched domains hierarchy. The domains
* and groups cannot be updated in place without racing with the balancing

12
kernel/sched_fair.c
View File

@ -75,7 +75,7 @@ enum {
unsigned int sysctl_sched_features __read_mostly =
SCHED_FEAT_FAIR_SLEEPERS *1 |
SCHED_FEAT_SLEEPER_AVG *1 |
SCHED_FEAT_SLEEPER_AVG *0 |
SCHED_FEAT_SLEEPER_LOAD_AVG *1 |
SCHED_FEAT_PRECISE_CPU_LOAD *1 |
SCHED_FEAT_START_DEBIT *1 |
@ -304,11 +304,9 @@ __update_curr(struct cfs_rq *cfs_rq, struct sched_entity *curr)
delta_mine = calc_delta_mine(delta_exec, curr->load.weight, lw);
if (cfs_rq->sleeper_bonus > sysctl_sched_granularity) {
delta = calc_delta_mine(cfs_rq->sleeper_bonus,
curr->load.weight, lw);
if (unlikely(delta > cfs_rq->sleeper_bonus))
delta = cfs_rq->sleeper_bonus;
delta = min(cfs_rq->sleeper_bonus, (u64)delta_exec);
delta = calc_delta_mine(delta, curr->load.weight, lw);
delta = min((u64)delta, cfs_rq->sleeper_bonus);
cfs_rq->sleeper_bonus -= delta;
delta_mine -= delta;
}
@ -521,6 +519,8 @@ static void __enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se)
* Track the amount of bonus we've given to sleepers:
*/
cfs_rq->sleeper_bonus += delta_fair;
if (unlikely(cfs_rq->sleeper_bonus > sysctl_sched_runtime_limit))
cfs_rq->sleeper_bonus = sysctl_sched_runtime_limit;
schedstat_add(cfs_rq, wait_runtime, se->wait_runtime);
}