Merge branch 'locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[sfrench/cifs-2.6.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 011db2f4c94c056595625d19b452adf7c6f65625..29df6374d2de517e078c7dd29dd5eb6b7c18f82b 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -331,7 +331,9 @@ extern signed long 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);
 asmlinkage void schedule(void);
+extern int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner);
 
 struct nsproxy;
 struct user_namespace;
@@ -998,6 +1000,7 @@ struct sched_class {
                              struct rq *busiest, struct sched_domain *sd,
                              enum cpu_idle_type idle);
        void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
+       int (*needs_post_schedule) (struct rq *this_rq);
        void (*post_schedule) (struct rq *this_rq);
        void (*task_wake_up) (struct rq *this_rq, struct task_struct *task);
 
@@ -1052,6 +1055,10 @@ struct sched_entity {
        u64                     last_wakeup;
        u64                     avg_overlap;
 
+       u64                     start_runtime;
+       u64                     avg_wakeup;
+       u64                     nr_migrations;
+
 #ifdef CONFIG_SCHEDSTATS
        u64                     wait_start;
        u64                     wait_max;
@@ -1067,7 +1074,6 @@ struct sched_entity {
        u64                     exec_max;
        u64                     slice_max;
 
-       u64                     nr_migrations;
        u64                     nr_migrations_cold;
        u64                     nr_failed_migrations_affine;
        u64                     nr_failed_migrations_running;
@@ -1164,6 +1170,7 @@ struct task_struct {
 #endif
 
        struct list_head tasks;
+       struct plist_node pushable_tasks;
 
        struct mm_struct *mm, *active_mm;
 
@@ -1175,13 +1182,14 @@ struct task_struct {
        /* ??? */
        unsigned int personality;
        unsigned did_exec:1;
+       unsigned in_execve:1;   /* Tell the LSMs that the process is doing an
+                                * execve */
        pid_t pid;
        pid_t tgid;
 
-#ifdef CONFIG_CC_STACKPROTECTOR
        /* Canary value for the -fstack-protector gcc feature */
        unsigned long stack_canary;
-#endif
+
        /* 
         * pointers to (original) parent process, youngest child, younger sibling,
         * older sibling, respectively.  (p->father can be replaced with 
@@ -1328,6 +1336,7 @@ struct task_struct {
        int lockdep_depth;
        unsigned int lockdep_recursion;
        struct held_lock held_locks[MAX_LOCK_DEPTH];
+       gfp_t lockdep_reclaim_gfp;
 #endif
 
 /* journalling filesystem info */
@@ -1673,6 +1682,16 @@ static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask)
        return set_cpus_allowed_ptr(p, &new_mask);
 }
 
+/*
+ * Architectures can set this to 1 if they have specified
+ * CONFIG_HAVE_UNSTABLE_SCHED_CLOCK in their arch Kconfig,
+ * but then during bootup it turns out that sched_clock()
+ * is reliable after all:
+ */
+#ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+extern int sched_clock_stable;
+#endif
+
 extern unsigned long long sched_clock(void);
 
 extern void sched_clock_init(void);
@@ -2090,6 +2109,19 @@ static inline int object_is_on_stack(void *obj)
 
 extern void thread_info_cache_init(void);
 
+#ifdef CONFIG_DEBUG_STACK_USAGE
+static inline unsigned long stack_not_used(struct task_struct *p)
+{
+       unsigned long *n = end_of_stack(p);
+
+       do {    /* Skip over canary */
+               n++;
+       } while (!*n);
+
+       return (unsigned long)n - (unsigned long)end_of_stack(p);
+}
+#endif
+
 /* set thread flags in other task's structures
  * - see asm/thread_info.h for TIF_xxxx flags available
  */