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 arch_unmap_area(struct mm_struct *, unsigned long);
extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
-#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS
+#if USE_SPLIT_PTLOCKS
/*
* The mm counters are not protected by its page_table_lock,
* so must be incremented atomically.
#define inc_mm_counter(mm, member) atomic_long_inc(&(mm)->_##member)
#define dec_mm_counter(mm, member) atomic_long_dec(&(mm)->_##member)
-#else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
+#else /* !USE_SPLIT_PTLOCKS */
/*
* The mm counters are protected by its page_table_lock,
* so can be incremented directly.
#define inc_mm_counter(mm, member) (mm)->_##member++
#define dec_mm_counter(mm, member) (mm)->_##member--
-#endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
+#endif /* !USE_SPLIT_PTLOCKS */
#define get_mm_rss(mm) \
(get_mm_counter(mm, file_rss) + get_mm_counter(mm, anon_rss))
#define MMF_DUMP_MAPPED_PRIVATE 4
#define MMF_DUMP_MAPPED_SHARED 5
#define MMF_DUMP_ELF_HEADERS 6
+#define MMF_DUMP_HUGETLB_PRIVATE 7
+#define MMF_DUMP_HUGETLB_SHARED 8
#define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS
-#define MMF_DUMP_FILTER_BITS 5
+#define MMF_DUMP_FILTER_BITS 7
#define MMF_DUMP_FILTER_MASK \
(((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT)
#define MMF_DUMP_FILTER_DEFAULT \
- ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED))
+ ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\
+ (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF)
+
+#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS
+# define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS)
+#else
+# define MMF_DUMP_MASK_DEFAULT_ELF 0
+#endif
struct sighand_struct {
atomic_t count;
* @utime: time spent in user mode, in &cputime_t units
* @stime: time spent in kernel mode, in &cputime_t units
* @sum_exec_runtime: total time spent on the CPU, in nanoseconds
- *
+ *
* This structure groups together three kinds of CPU time that are
* tracked for threads and thread groups. Most things considering
* CPU time want to group these counts together and treat all three
* This structure contains the version of task_cputime, above, that is
* used for thread group CPU clock calculations.
*/
-#ifdef CONFIG_SMP
struct thread_group_cputime {
struct task_cputime *totals;
};
-#else
-struct thread_group_cputime {
- struct task_cputime totals;
-};
-#endif
/*
* NOTE! "signal_struct" does not have it's own
* - everyone except group_exit_task is stopped during signal delivery
* of fatal signals, group_exit_task processes the signal.
*/
- struct task_struct *group_exit_task;
int notify_count;
+ struct task_struct *group_exit_task;
/* thread group stop support, overloads group_exit_code too */
int group_stop_count;
unsigned int ttwu_move_affine;
unsigned int ttwu_move_balance;
#endif
+#ifdef CONFIG_SCHED_DEBUG
+ char *name;
+#endif
};
extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new,
void (*yield_task) (struct rq *rq);
int (*select_task_rq)(struct task_struct *p, int sync);
- void (*check_preempt_curr) (struct rq *rq, struct task_struct *p);
+ void (*check_preempt_curr) (struct rq *rq, struct task_struct *p, int sync);
struct task_struct * (*pick_next_task) (struct rq *rq);
void (*put_prev_task) (struct rq *rq, struct task_struct *p);
struct sched_rt_entity {
struct list_head run_list;
- unsigned int time_slice;
unsigned long timeout;
+ unsigned int time_slice;
int nr_cpus_allowed;
struct sched_rt_entity *back;
int latency_record_count;
struct latency_record latency_record[LT_SAVECOUNT];
#endif
+ /*
+ * time slack values; these are used to round up poll() and
+ * select() etc timeout values. These are in nanoseconds.
+ */
+ unsigned long timer_slack_ns;
+ unsigned long default_timer_slack_ns;
};
/*
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,
/*
* Thread group CPU time accounting.
*/
-#ifdef CONFIG_SMP
-extern int thread_group_cputime_alloc_smp(struct task_struct *);
-extern void thread_group_cputime_smp(struct task_struct *, struct task_cputime *);
+extern int thread_group_cputime_alloc(struct task_struct *);
+extern void thread_group_cputime(struct task_struct *, struct task_cputime *);
static inline void thread_group_cputime_init(struct signal_struct *sig)
{
sig->cputime.totals = NULL;
}
-static inline int thread_group_cputime_clone_thread(struct task_struct *curr,
- struct task_struct *new)
+static inline int thread_group_cputime_clone_thread(struct task_struct *curr)
{
if (curr->signal->cputime.totals)
return 0;
- return thread_group_cputime_alloc_smp(curr);
+ return thread_group_cputime_alloc(curr);
}
static inline void thread_group_cputime_free(struct signal_struct *sig)
free_percpu(sig->cputime.totals);
}
-/**
- * thread_group_cputime - Sum the thread group time fields across all CPUs.
- *
- * This is a wrapper for the real routine, thread_group_cputime_smp(). See
- * that routine for details.
- */
-static inline void thread_group_cputime(
- struct task_struct *tsk,
- struct task_cputime *times)
-{
- thread_group_cputime_smp(tsk, times);
-}
-
-/**
- * thread_group_cputime_account_user - Maintain utime for a thread group.
- *
- * @tgtimes: Pointer to thread_group_cputime structure.
- * @cputime: Time value by which to increment the utime field of that
- * structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the utime field there.
- */
-static inline void thread_group_cputime_account_user(
- struct thread_group_cputime *tgtimes,
- cputime_t cputime)
-{
- if (tgtimes->totals) {
- struct task_cputime *times;
-
- times = per_cpu_ptr(tgtimes->totals, get_cpu());
- times->utime = cputime_add(times->utime, cputime);
- put_cpu_no_resched();
- }
-}
-
-/**
- * thread_group_cputime_account_system - Maintain stime for a thread group.
- *
- * @tgtimes: Pointer to thread_group_cputime structure.
- * @cputime: Time value by which to increment the stime field of that
- * structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the stime field there.
- */
-static inline void thread_group_cputime_account_system(
- struct thread_group_cputime *tgtimes,
- cputime_t cputime)
-{
- if (tgtimes->totals) {
- struct task_cputime *times;
-
- times = per_cpu_ptr(tgtimes->totals, get_cpu());
- times->stime = cputime_add(times->stime, cputime);
- put_cpu_no_resched();
- }
-}
-
-/**
- * thread_group_cputime_account_exec_runtime - Maintain exec runtime for a
- * thread group.
- *
- * @tgtimes: Pointer to thread_group_cputime structure.
- * @ns: Time value by which to increment the sum_exec_runtime field
- * of that structure.
- *
- * If thread group time is being maintained, get the structure for the
- * running CPU and update the sum_exec_runtime field there.
- */
-static inline void thread_group_cputime_account_exec_runtime(
- struct thread_group_cputime *tgtimes,
- unsigned long long ns)
-{
- if (tgtimes->totals) {
- struct task_cputime *times;
-
- times = per_cpu_ptr(tgtimes->totals, get_cpu());
- times->sum_exec_runtime += ns;
- put_cpu_no_resched();
- }
-}
-
-#else /* CONFIG_SMP */
-
-static inline void thread_group_cputime_init(struct signal_struct *sig)
-{
- sig->cputime.totals.utime = cputime_zero;
- sig->cputime.totals.stime = cputime_zero;
- sig->cputime.totals.sum_exec_runtime = 0;
-}
-
-static inline int thread_group_cputime_alloc(struct task_struct *tsk)
-{
- return 0;
-}
-
-static inline void thread_group_cputime_free(struct signal_struct *sig)
-{
-}
-
-static inline int thread_group_cputime_clone_thread(struct task_struct *curr,
- struct task_struct *tsk)
-{
-}
-
-static inline void thread_group_cputime(struct task_struct *tsk,
- struct task_cputime *cputime)
-{
- *cputime = tsk->signal->cputime.totals;
-}
-
-static inline void thread_group_cputime_account_user(
- struct thread_group_cputime *tgtimes,
- cputime_t cputime)
-{
- tgtimes->totals->utime = cputime_add(tgtimes->totals->utime, cputime);
-}
-
-static inline void thread_group_cputime_account_system(
- struct thread_group_cputime *tgtimes,
- cputime_t cputime)
-{
- tgtimes->totals->stime = cputime_add(tgtimes->totals->stime, cputime);
-}
-
-static inline void thread_group_cputime_account_exec_runtime(
- struct thread_group_cputime *tgtimes,
- unsigned long long ns)
-{
- tgtimes->totals->sum_exec_runtime += ns;
-}
-
-#endif /* CONFIG_SMP */
-
-static inline void account_group_user_time(struct task_struct *tsk,
- cputime_t cputime)
-{
- struct signal_struct *sig;
-
- sig = tsk->signal;
- if (likely(sig))
- thread_group_cputime_account_user(&sig->cputime, cputime);
-}
-
-static inline void account_group_system_time(struct task_struct *tsk,
- cputime_t cputime)
-{
- struct signal_struct *sig;
-
- sig = tsk->signal;
- if (likely(sig))
- thread_group_cputime_account_system(&sig->cputime, cputime);
-}
-
-static inline void account_group_exec_runtime(struct task_struct *tsk,
- unsigned long long ns)
-{
- struct signal_struct *sig;
-
- sig = tsk->signal;
- if (likely(sig))
- thread_group_cputime_account_exec_runtime(&sig->cputime, ns);
-}
-
/*
* Reevaluate whether the task has signals pending delivery.
* Wake the task if so.
projects / linux-2.6-omap-h63xx.git / blobdiff