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Merge commit 'v2.6.29-rc1' into perfcounters/core

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Conflicts:
	include/linux/kernel_stat.h
This commit is contained in:
Ingo Molnar
2009-01-11 02:42:53 +01:00
parent e1df957670 c59765042f
commit 506c10f26c
6192 changed files with 842449 additions and 152253 deletions
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103
include/linux/sched.h
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@@ -251,7 +251,7 @@ extern void init_idle_bootup_task(struct task_struct *idle);
extern int runqueue_is_locked(void);
extern void task_rq_unlock_wait(struct task_struct *p);
extern cpumask_t nohz_cpu_mask;
extern cpumask_var_t nohz_cpu_mask;
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ)
extern int select_nohz_load_balancer(int cpu);
#else
@@ -285,7 +285,6 @@ long io_schedule_timeout(long timeout);
extern void cpu_init (void);
extern void trap_init(void);
extern void account_process_tick(struct task_struct *task, int user);
extern void update_process_times(int user);
extern void scheduler_tick(void);
@@ -388,6 +387,9 @@ extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
(mm)->hiwater_vm = (mm)->total_vm; \
} while (0)
#define get_mm_hiwater_rss(mm) max((mm)->hiwater_rss, get_mm_rss(mm))
#define get_mm_hiwater_vm(mm) max((mm)->hiwater_vm, (mm)->total_vm)
extern void set_dumpable(struct mm_struct *mm, int value);
extern int get_dumpable(struct mm_struct *mm);
@@ -759,20 +761,51 @@ enum cpu_idle_type {
#define SD_SERIALIZE 1024 /* Only a single load balancing instance */
#define SD_WAKE_IDLE_FAR 2048 /* Gain latency sacrificing cache hit */
#define BALANCE_FOR_MC_POWER \
(sched_smt_power_savings ? SD_POWERSAVINGS_BALANCE : 0)
enum powersavings_balance_level {
POWERSAVINGS_BALANCE_NONE = 0, /* No power saving load balance */
POWERSAVINGS_BALANCE_BASIC, /* Fill one thread/core/package
* first for long running threads
*/
POWERSAVINGS_BALANCE_WAKEUP, /* Also bias task wakeups to semi-idle
* cpu package for power savings
*/
MAX_POWERSAVINGS_BALANCE_LEVELS
};
#define BALANCE_FOR_PKG_POWER \
((sched_mc_power_savings || sched_smt_power_savings) ? \
SD_POWERSAVINGS_BALANCE : 0)
extern int sched_mc_power_savings, sched_smt_power_savings;
#define test_sd_parent(sd, flag) ((sd->parent && \
(sd->parent->flags & flag)) ? 1 : 0)
static inline int sd_balance_for_mc_power(void)
{
if (sched_smt_power_savings)
return SD_POWERSAVINGS_BALANCE;
return 0;
}
static inline int sd_balance_for_package_power(void)
{
if (sched_mc_power_savings | sched_smt_power_savings)
return SD_POWERSAVINGS_BALANCE;
return 0;
}
/*
* Optimise SD flags for power savings:
* SD_BALANCE_NEWIDLE helps agressive task consolidation and power savings.
* Keep default SD flags if sched_{smt,mc}_power_saving=0
*/
static inline int sd_power_saving_flags(void)
{
if (sched_mc_power_savings | sched_smt_power_savings)
return SD_BALANCE_NEWIDLE;
return 0;
}
struct sched_group {
struct sched_group *next; /* Must be a circular list */
cpumask_t cpumask;
/*
* CPU power of this group, SCHED_LOAD_SCALE being max power for a
@@ -785,8 +818,15 @@ struct sched_group {
* (see include/linux/reciprocal_div.h)
*/
u32 reciprocal_cpu_power;
unsigned long cpumask[];
};
static inline struct cpumask *sched_group_cpus(struct sched_group *sg)
{
return to_cpumask(sg->cpumask);
}
enum sched_domain_level {
SD_LV_NONE = 0,
SD_LV_SIBLING,
@@ -810,7 +850,6 @@ struct sched_domain {
struct sched_domain *parent; /* top domain must be null terminated */
struct sched_domain *child; /* bottom domain must be null terminated */
struct sched_group *groups; /* the balancing groups of the domain */
cpumask_t span; /* span of all CPUs in this domain */
unsigned long min_interval; /* Minimum balance interval ms */
unsigned long max_interval; /* Maximum balance interval ms */
unsigned int busy_factor; /* less balancing by factor if busy */
@@ -865,18 +904,34 @@ struct sched_domain {
#ifdef CONFIG_SCHED_DEBUG
char *name;
#endif
/* span of all CPUs in this domain */
unsigned long span[];
};
extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new,
static inline struct cpumask *sched_domain_span(struct sched_domain *sd)
{
return to_cpumask(sd->span);
}
extern void partition_sched_domains(int ndoms_new, struct cpumask *doms_new,
struct sched_domain_attr *dattr_new);
extern int arch_reinit_sched_domains(void);
/* Test a flag in parent sched domain */
static inline int test_sd_parent(struct sched_domain *sd, int flag)
{
if (sd->parent && (sd->parent->flags & flag))
return 1;
return 0;
}
#else /* CONFIG_SMP */
struct sched_domain_attr;
static inline void
partition_sched_domains(int ndoms_new, cpumask_t *doms_new,
partition_sched_domains(int ndoms_new, struct cpumask *doms_new,
struct sched_domain_attr *dattr_new)
{
}
@@ -927,7 +982,7 @@ struct sched_class {
void (*task_wake_up) (struct rq *this_rq, struct task_struct *task);
void (*set_cpus_allowed)(struct task_struct *p,
const cpumask_t *newmask);
const struct cpumask *newmask);
void (*rq_online)(struct rq *rq);
void (*rq_offline)(struct rq *rq);
@@ -1582,12 +1637,12 @@ extern cputime_t task_gtime(struct task_struct *p);
#ifdef CONFIG_SMP
extern int set_cpus_allowed_ptr(struct task_struct *p,
const cpumask_t *new_mask);
const struct cpumask *new_mask);
#else
static inline int set_cpus_allowed_ptr(struct task_struct *p,
const cpumask_t *new_mask)
const struct cpumask *new_mask)
{
if (!cpu_isset(0, *new_mask))
if (!cpumask_test_cpu(0, new_mask))
return -EINVAL;
return 0;
}
@@ -1654,16 +1709,16 @@ extern void wake_up_idle_cpu(int cpu);
static inline void wake_up_idle_cpu(int cpu) { }
#endif
#ifdef CONFIG_SCHED_DEBUG
extern unsigned int sysctl_sched_latency;
extern unsigned int sysctl_sched_min_granularity;
extern unsigned int sysctl_sched_wakeup_granularity;
extern unsigned int sysctl_sched_shares_ratelimit;
extern unsigned int sysctl_sched_shares_thresh;
#ifdef CONFIG_SCHED_DEBUG
extern unsigned int sysctl_sched_child_runs_first;
extern unsigned int sysctl_sched_features;
extern unsigned int sysctl_sched_migration_cost;
extern unsigned int sysctl_sched_nr_migrate;
extern unsigned int sysctl_sched_shares_ratelimit;
extern unsigned int sysctl_sched_shares_thresh;
int sched_nr_latency_handler(struct ctl_table *table, int write,
struct file *file, void __user *buffer, size_t *length,
@@ -2198,10 +2253,8 @@ __trace_special(void *__tr, void *__data,
}
#endif
extern long sched_setaffinity(pid_t pid, const cpumask_t *new_mask);
extern long sched_getaffinity(pid_t pid, cpumask_t *mask);
extern int sched_mc_power_savings, sched_smt_power_savings;
extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask);
extern long sched_getaffinity(pid_t pid, struct cpumask *mask);
extern void normalize_rt_tasks(void);