#define CLONE_NEWUSER 0x10000000 /* New user namespace */
#define CLONE_NEWPID 0x20000000 /* New pid namespace */
#define CLONE_NEWNET 0x40000000 /* New network namespace */
+#define CLONE_IO 0x80000000 /* Clone io context */
/*
* Scheduling policies
#include <linux/proportions.h>
#include <linux/seccomp.h>
#include <linux/rcupdate.h>
-#include <linux/futex.h>
#include <linux/rtmutex.h>
#include <linux/time.h>
#include <linux/hrtimer.h>
#include <linux/task_io_accounting.h>
#include <linux/kobject.h>
+#include <linux/latencytop.h>
#include <asm/processor.h>
struct exec_domain;
struct futex_pi_state;
+struct robust_list_head;
struct bio;
/*
#define TASK_RUNNING 0
#define TASK_INTERRUPTIBLE 1
#define TASK_UNINTERRUPTIBLE 2
-#define TASK_STOPPED 4
-#define TASK_TRACED 8
+#define __TASK_STOPPED 4
+#define __TASK_TRACED 8
/* in tsk->exit_state */
#define EXIT_ZOMBIE 16
#define EXIT_DEAD 32
/* in tsk->state again */
#define TASK_DEAD 64
+#define TASK_WAKEKILL 128
+
+/* Convenience macros for the sake of set_task_state */
+#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
+#define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED)
+#define TASK_TRACED (TASK_WAKEKILL | __TASK_TRACED)
+
+/* Convenience macros for the sake of wake_up */
+#define TASK_NORMAL (TASK_INTERRUPTIBLE | TASK_UNINTERRUPTIBLE)
+#define TASK_ALL (TASK_NORMAL | __TASK_STOPPED | __TASK_TRACED)
+
+/* get_task_state() */
+#define TASK_REPORT (TASK_RUNNING | TASK_INTERRUPTIBLE | \
+ TASK_UNINTERRUPTIBLE | __TASK_STOPPED | \
+ __TASK_TRACED)
+
+#define task_is_traced(task) ((task->state & __TASK_TRACED) != 0)
+#define task_is_stopped(task) ((task->state & __TASK_STOPPED) != 0)
+#define task_is_stopped_or_traced(task) \
+ ((task->state & (__TASK_STOPPED | __TASK_TRACED)) != 0)
+#define task_contributes_to_load(task) \
+ ((task->state & TASK_UNINTERRUPTIBLE) != 0)
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)
}
#endif
+extern unsigned long rt_needs_cpu(int cpu);
+
/*
* Only dump TASK_* tasks. (0 for all tasks)
*/
extern void account_process_tick(struct task_struct *task, int user);
extern void update_process_times(int user);
extern void scheduler_tick(void);
+extern void hrtick_resched(void);
extern void sched_show_task(struct task_struct *p);
extern void spawn_softlockup_task(void);
extern void touch_softlockup_watchdog(void);
extern void touch_all_softlockup_watchdogs(void);
-extern int softlockup_thresh;
+extern unsigned long softlockup_thresh;
extern unsigned long sysctl_hung_task_check_count;
extern unsigned long sysctl_hung_task_timeout_secs;
-extern long sysctl_hung_task_warnings;
+extern unsigned long sysctl_hung_task_warnings;
#else
static inline void softlockup_tick(void)
{
#define MAX_SCHEDULE_TIMEOUT LONG_MAX
extern signed long FASTCALL(schedule_timeout(signed long timeout));
extern signed long schedule_timeout_interruptible(signed long timeout);
+extern signed long schedule_timeout_killable(signed long timeout);
extern signed long schedule_timeout_uninterruptible(signed long timeout);
asmlinkage void schedule(void);
#define SIGNAL_STOP_CONTINUED 0x00000004 /* SIGCONT since WCONTINUED reap */
#define SIGNAL_GROUP_EXIT 0x00000008 /* group exit in progress */
+/* If true, all threads except ->group_exit_task have pending SIGKILL */
+static inline int signal_group_exit(const struct signal_struct *sig)
+{
+ return (sig->flags & SIGNAL_GROUP_EXIT) ||
+ (sig->group_exit_task != NULL);
+}
+
/*
* Some day this will be a full-fledged user tracking system..
*/
#endif
void (*set_curr_task) (struct rq *rq);
- void (*task_tick) (struct rq *rq, struct task_struct *p);
+ void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
void (*task_new) (struct rq *rq, struct task_struct *p);
void (*set_cpus_allowed)(struct task_struct *p, cpumask_t *newmask);
#ifdef CONFIG_SCHEDSTATS
u64 wait_start;
u64 wait_max;
+ u64 wait_count;
+ u64 wait_sum;
u64 sleep_start;
u64 sleep_max;
struct list_head run_list;
unsigned int time_slice;
unsigned long timeout;
+ int nr_cpus_allowed;
+
+#ifdef CONFIG_FAIR_GROUP_SCHED
+ struct sched_rt_entity *parent;
+ /* rq on which this entity is (to be) queued: */
+ struct rt_rq *rt_rq;
+ /* rq "owned" by this entity/group: */
+ struct rt_rq *my_q;
+#endif
};
struct task_struct {
struct hlist_head preempt_notifiers;
#endif
- unsigned short ioprio;
/*
* fpu_counter contains the number of consecutive context switches
* that the FPU is used. If this is over a threshold, the lazy fpu
unsigned int policy;
cpumask_t cpus_allowed;
- int nr_cpus_allowed;
#ifdef CONFIG_PREEMPT_RCU
int rcu_read_lock_nesting;
void *security;
#endif
struct audit_context *audit_context;
+#ifdef CONFIG_AUDITSYSCALL
+ uid_t loginuid;
+ unsigned int sessionid;
+#endif
seccomp_t seccomp;
/* Thread group tracking */
int make_it_fail;
#endif
struct prop_local_single dirties;
+#ifdef CONFIG_LATENCYTOP
+ int latency_record_count;
+ struct latency_record latency_record[LT_SAVECOUNT];
+#endif
};
/*
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_rt_period;
+extern unsigned int sysctl_sched_rt_ratio;
#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP)
extern unsigned int sysctl_sched_min_bal_int_shares;
extern unsigned int sysctl_sched_max_bal_int_shares;
struct task_struct *fork_idle(int);
extern void set_task_comm(struct task_struct *tsk, char *from);
-extern void get_task_comm(char *to, struct task_struct *tsk);
+extern char *get_task_comm(char *to, struct task_struct *tsk);
#ifdef CONFIG_SMP
extern void wait_task_inactive(struct task_struct * p);
{
return unlikely(test_tsk_thread_flag(p,TIF_SIGPENDING));
}
-
+
+extern int FASTCALL(__fatal_signal_pending(struct task_struct *p));
+
+static inline int fatal_signal_pending(struct task_struct *p)
+{
+ return signal_pending(p) && __fatal_signal_pending(p);
+}
+
static inline int need_resched(void)
{
return unlikely(test_thread_flag(TIF_NEED_RESCHED));
* cond_resched_lock() will drop the spinlock before scheduling,
* cond_resched_softirq() will enable bhs before scheduling.
*/
-extern int cond_resched(void);
-extern int cond_resched_lock(spinlock_t * lock);
-extern int cond_resched_softirq(void);
-
-/*
- * Does a critical section need to be broken due to another
- * task waiting?:
- */
-#if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP)
-# define need_lockbreak(lock) ((lock)->break_lock)
+#ifdef CONFIG_PREEMPT
+static inline int cond_resched(void)
+{
+ return 0;
+}
#else
-# define need_lockbreak(lock) 0
+extern int _cond_resched(void);
+static inline int cond_resched(void)
+{
+ return _cond_resched();
+}
#endif
+extern int cond_resched_lock(spinlock_t * lock);
+extern int cond_resched_softirq(void);
/*
* Does a critical section need to be broken due to another
- * task waiting or preemption being signalled:
+ * task waiting?: (technically does not depend on CONFIG_PREEMPT,
+ * but a general need for low latency)
*/
-static inline int lock_need_resched(spinlock_t *lock)
+static inline int spin_needbreak(spinlock_t *lock)
{
- if (need_lockbreak(lock) || need_resched())
- return 1;
+#ifdef CONFIG_PREEMPT
+ return spin_is_contended(lock);
+#else
return 0;
+#endif
}
/*
}
#endif
+#ifndef TASK_SIZE_OF
+#define TASK_SIZE_OF(tsk) TASK_SIZE
+#endif
+
#endif /* __KERNEL__ */
#endif
projects / mv-sheeva.git / blobdiff