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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2011-12-19 19:23:15 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-12-19 19:23:15 +0100
commit612ef28a045efadb3a98d4492ead7806a146485d (patch)
tree05621c87b37e91c27b06d450d76adffe97ce9666 /include/linux/sched.h
parentc3e0ef9a298e028a82ada28101ccd5cf64d209ee (diff)
parent07cde2608a3b5c66515363f1b53623b1536b9785 (diff)
Merge branch 'sched/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into cputime-tip
Conflicts: drivers/cpufreq/cpufreq_conservative.c drivers/cpufreq/cpufreq_ondemand.c drivers/macintosh/rack-meter.c fs/proc/stat.c fs/proc/uptime.c kernel/sched/core.c
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5649032d73f..5a2ab3c2757 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -273,9 +273,11 @@ extern int runqueue_is_locked(int cpu);
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ)
extern void select_nohz_load_balancer(int stop_tick);
+extern void set_cpu_sd_state_idle(void);
extern int get_nohz_timer_target(void);
#else
static inline void select_nohz_load_balancer(int stop_tick) { }
+static inline void set_cpu_sd_state_idle(void) { }
#endif
/*
@@ -901,6 +903,10 @@ struct sched_group_power {
* single CPU.
*/
unsigned int power, power_orig;
+ /*
+ * Number of busy cpus in this group.
+ */
+ atomic_t nr_busy_cpus;
};
struct sched_group {
@@ -925,6 +931,15 @@ static inline struct cpumask *sched_group_cpus(struct sched_group *sg)
return to_cpumask(sg->cpumask);
}
+/**
+ * group_first_cpu - Returns the first cpu in the cpumask of a sched_group.
+ * @group: The group whose first cpu is to be returned.
+ */
+static inline unsigned int group_first_cpu(struct sched_group *group)
+{
+ return cpumask_first(sched_group_cpus(group));
+}
+
struct sched_domain_attr {
int relax_domain_level;
};
@@ -1315,8 +1330,8 @@ struct task_struct {
* older sibling, respectively. (p->father can be replaced with
* p->real_parent->pid)
*/
- struct task_struct *real_parent; /* real parent process */
- struct task_struct *parent; /* recipient of SIGCHLD, wait4() reports */
+ struct task_struct __rcu *real_parent; /* real parent process */
+ struct task_struct __rcu *parent; /* recipient of SIGCHLD, wait4() reports */
/*
* children/sibling forms the list of my natural children
*/