Merge branch 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc

[pandora-kernel.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3f53c25..885c4f2 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -360,7 +360,7 @@ 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);
-extern int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner);
+extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner);
 
 struct nsproxy;
 struct user_namespace;
@@ -730,10 +730,6 @@ struct sched_info {
        /* timestamps */
        unsigned long long last_arrival,/* when we last ran on a cpu */
                           last_queued; /* when we were last queued to run */
-#ifdef CONFIG_SCHEDSTATS
-       /* BKL stats */
-       unsigned int bkl_count;
-#endif
 };
 #endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */
 
@@ -853,7 +849,7 @@ extern int __weak arch_sd_sibiling_asym_packing(void);
 
 /*
  * Optimise SD flags for power savings:
- * SD_BALANCE_NEWIDLE helps agressive task consolidation and power savings.
+ * SD_BALANCE_NEWIDLE helps aggressive task consolidation and power savings.
  * Keep default SD flags if sched_{smt,mc}_power_saving=0
  */
 
@@ -867,6 +863,7 @@ static inline int sd_power_saving_flags(void)
 
 struct sched_group {
        struct sched_group *next;       /* Must be a circular list */
+       atomic_t ref;
 
        /*
         * CPU power of this group, SCHED_LOAD_SCALE being max power for a
@@ -881,9 +878,6 @@ struct sched_group {
         * NOTE: this field is variable length. (Allocated dynamically
         * by attaching extra space to the end of the structure,
         * depending on how many CPUs the kernel has booted up with)
-        *
-        * It is also be embedded into static data structures at build
-        * time. (See 'struct static_sched_group' in kernel/sched.c)
         */
        unsigned long cpumask[0];
 };
@@ -893,17 +887,6 @@ 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,
-       SD_LV_MC,
-       SD_LV_BOOK,
-       SD_LV_CPU,
-       SD_LV_NODE,
-       SD_LV_ALLNODES,
-       SD_LV_MAX
-};
-
 struct sched_domain_attr {
        int relax_domain_level;
 };
@@ -912,6 +895,8 @@ struct sched_domain_attr {
        .relax_domain_level = -1,                       \
 }
 
+extern int sched_domain_level_max;
+
 struct sched_domain {
        /* These fields must be setup */
        struct sched_domain *parent;    /* top domain must be null terminated */
@@ -929,7 +914,7 @@ struct sched_domain {
        unsigned int forkexec_idx;
        unsigned int smt_gain;
        int flags;                      /* See SD_* */
-       enum sched_domain_level level;
+       int level;
 
        /* Runtime fields. */
        unsigned long last_balance;     /* init to jiffies. units in jiffies */
@@ -972,6 +957,10 @@ struct sched_domain {
 #ifdef CONFIG_SCHED_DEBUG
        char *name;
 #endif
+       union {
+               void *private;          /* used during construction */
+               struct rcu_head rcu;    /* used during destruction */
+       };
 
        unsigned int span_weight;
        /*
@@ -980,9 +969,6 @@ struct sched_domain {
         * NOTE: this field is variable length. (Allocated dynamically
         * by attaching extra space to the end of the structure,
         * depending on how many CPUs the kernel has booted up with)
-        *
-        * It is also be embedded into static data structures at build
-        * time. (See 'struct static_sched_domain' in kernel/sched.c)
         */
        unsigned long span[0];
 };
@@ -1047,8 +1033,12 @@ struct sched_domain;
 #define WF_FORK                0x02            /* child wakeup after fork */
 
 #define ENQUEUE_WAKEUP         1
-#define ENQUEUE_WAKING         2
-#define ENQUEUE_HEAD           4
+#define ENQUEUE_HEAD           2
+#ifdef CONFIG_SMP
+#define ENQUEUE_WAKING         4       /* sched_class::task_waking was called */
+#else
+#define ENQUEUE_WAKING         0
+#endif
 
 #define DEQUEUE_SLEEP          1
 
@@ -1066,12 +1056,11 @@ struct sched_class {
        void (*put_prev_task) (struct rq *rq, struct task_struct *p);
 
 #ifdef CONFIG_SMP
-       int  (*select_task_rq)(struct rq *rq, struct task_struct *p,
-                              int sd_flag, int flags);
+       int  (*select_task_rq)(struct task_struct *p, int sd_flag, int flags);
 
        void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
        void (*post_schedule) (struct rq *this_rq);
-       void (*task_waking) (struct rq *this_rq, struct task_struct *task);
+       void (*task_waking) (struct task_struct *task);
        void (*task_woken) (struct rq *this_rq, struct task_struct *task);
 
        void (*set_cpus_allowed)(struct task_struct *p,
@@ -1196,13 +1185,11 @@ struct task_struct {
        unsigned int flags;     /* per process flags, defined below */
        unsigned int ptrace;
 
-       int lock_depth;         /* BKL lock depth */
-
 #ifdef CONFIG_SMP
-#ifdef __ARCH_WANT_UNLOCKED_CTXSW
-       int oncpu;
-#endif
+       struct task_struct *wake_entry;
+       int on_cpu;
 #endif
+       int on_rq;
 
        int prio, static_prio, normal_prio;
        unsigned int rt_priority;
@@ -1253,6 +1240,9 @@ struct task_struct {
 #endif
 
        struct mm_struct *mm, *active_mm;
+#ifdef CONFIG_COMPAT_BRK
+       unsigned brk_randomized:1;
+#endif
 #if defined(SPLIT_RSS_COUNTING)
        struct task_rss_stat    rss_stat;
 #endif
@@ -1271,6 +1261,7 @@ struct task_struct {
 
        /* Revert to default priority/policy when forking */
        unsigned sched_reset_on_fork:1;
+       unsigned sched_contributes_to_load:1;
 
        pid_t pid;
        pid_t tgid;
@@ -1534,6 +1525,9 @@ struct task_struct {
                unsigned long memsw_nr_pages; /* uncharged mem+swap usage */
        } memcg_batch;
 #endif
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+       atomic_t ptrace_bp_refcnt;
+#endif
 };
 
 /* Future-safe accessor for struct task_struct's cpus_allowed. */
@@ -2068,14 +2062,13 @@ extern void xtime_update(unsigned long ticks);
 
 extern int wake_up_state(struct task_struct *tsk, unsigned int state);
 extern int wake_up_process(struct task_struct *tsk);
-extern void wake_up_new_task(struct task_struct *tsk,
-                               unsigned long clone_flags);
+extern void wake_up_new_task(struct task_struct *tsk);
 #ifdef CONFIG_SMP
  extern void kick_process(struct task_struct *tsk);
 #else
  static inline void kick_process(struct task_struct *tsk) { }
 #endif
-extern void sched_fork(struct task_struct *p, int clone_flags);
+extern void sched_fork(struct task_struct *p);
 extern void sched_dead(struct task_struct *p);
 
 extern void proc_caches_init(void);
@@ -2200,8 +2193,10 @@ extern void set_task_comm(struct task_struct *tsk, char *from);
 extern char *get_task_comm(char *to, struct task_struct *tsk);
 
 #ifdef CONFIG_SMP
+void scheduler_ipi(void);
 extern unsigned long wait_task_inactive(struct task_struct *, long match_state);
 #else
+static inline void scheduler_ipi(void) { }
 static inline unsigned long wait_task_inactive(struct task_struct *p,
                                               long match_state)
 {