summaryrefslogtreecommitdiffstats
path: root/include/linux/sched.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h60
1 files changed, 57 insertions, 3 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 03c238088ae..c5d3f847ca8 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -158,6 +158,8 @@ print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
}
#endif
+extern unsigned long long time_sync_thresh;
+
/*
* Task state bitmask. NOTE! These bits are also
* encoded in fs/proc/array.c: get_task_state().
@@ -764,7 +766,6 @@ struct sched_domain {
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 */
- int first_cpu; /* cache of the first cpu 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 */
@@ -1551,6 +1552,35 @@ static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
extern unsigned long long sched_clock(void);
+#ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+static inline void sched_clock_init(void)
+{
+}
+
+static inline u64 sched_clock_cpu(int cpu)
+{
+ return sched_clock();
+}
+
+static inline void sched_clock_tick(void)
+{
+}
+
+static inline void sched_clock_idle_sleep_event(void)
+{
+}
+
+static inline void sched_clock_idle_wakeup_event(u64 delta_ns)
+{
+}
+#else
+extern void sched_clock_init(void);
+extern u64 sched_clock_cpu(int cpu);
+extern void sched_clock_tick(void);
+extern void sched_clock_idle_sleep_event(void);
+extern void sched_clock_idle_wakeup_event(u64 delta_ns);
+#endif
+
/*
* For kernel-internal use: high-speed (but slightly incorrect) per-cpu
* clock constructed from sched_clock():
@@ -1817,7 +1847,9 @@ extern void exit_thread(void);
extern void exit_files(struct task_struct *);
extern void __cleanup_signal(struct signal_struct *);
extern void __cleanup_sighand(struct sighand_struct *);
+
extern void exit_itimers(struct signal_struct *);
+extern void flush_itimer_signals(void);
extern NORET_TYPE void do_group_exit(int);
@@ -1977,6 +2009,11 @@ static inline void clear_tsk_need_resched(struct task_struct *tsk)
clear_tsk_thread_flag(tsk,TIF_NEED_RESCHED);
}
+static inline int test_tsk_need_resched(struct task_struct *tsk)
+{
+ return unlikely(test_tsk_thread_flag(tsk,TIF_NEED_RESCHED));
+}
+
static inline int signal_pending(struct task_struct *p)
{
return unlikely(test_tsk_thread_flag(p,TIF_SIGPENDING));
@@ -1989,6 +2026,19 @@ static inline int fatal_signal_pending(struct task_struct *p)
return signal_pending(p) && __fatal_signal_pending(p);
}
+static inline int signal_pending_state(long state, struct task_struct *p)
+{
+ if (!(state & (TASK_INTERRUPTIBLE | TASK_WAKEKILL)))
+ return 0;
+ if (!signal_pending(p))
+ return 0;
+
+ if (state & (__TASK_STOPPED | __TASK_TRACED))
+ return 0;
+
+ return (state & TASK_INTERRUPTIBLE) || __fatal_signal_pending(p);
+}
+
static inline int need_resched(void)
{
return unlikely(test_thread_flag(TIF_NEED_RESCHED));
@@ -2001,13 +2051,13 @@ static inline int need_resched(void)
* cond_resched_lock() will drop the spinlock before scheduling,
* cond_resched_softirq() will enable bhs before scheduling.
*/
-#ifdef CONFIG_PREEMPT
+extern int _cond_resched(void);
+#ifdef CONFIG_PREEMPT_BKL
static inline int cond_resched(void)
{
return 0;
}
#else
-extern int _cond_resched(void);
static inline int cond_resched(void)
{
return _cond_resched();
@@ -2015,6 +2065,10 @@ static inline int cond_resched(void)
#endif
extern int cond_resched_lock(spinlock_t * lock);
extern int cond_resched_softirq(void);
+static inline int cond_resched_bkl(void)
+{
+ return _cond_resched();
+}
/*
* Does a critical section need to be broken due to another