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

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

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2cca9a9..0383601 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1161,6 +1161,13 @@ struct sched_rt_entity {
 
 struct rcu_node;
 
+enum perf_event_task_context {
+       perf_invalid_context = -1,
+       perf_hw_context = 0,
+       perf_sw_context,
+       perf_nr_task_contexts,
+};
+
 struct task_struct {
        volatile long state;    /* -1 unrunnable, 0 runnable, >0 stopped */
        void *stack;
@@ -1203,11 +1210,13 @@ struct task_struct {
        unsigned int policy;
        cpumask_t cpus_allowed;
 
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
        int rcu_read_lock_nesting;
        char rcu_read_unlock_special;
-       struct rcu_node *rcu_blocked_node;
        struct list_head rcu_node_entry;
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
+#ifdef CONFIG_TREE_PREEMPT_RCU
+       struct rcu_node *rcu_blocked_node;
 #endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
 
 #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
@@ -1289,9 +1298,9 @@ struct task_struct {
        struct list_head cpu_timers[3];
 
 /* process credentials */
-       const struct cred *real_cred;   /* objective and real subjective task
+       const struct cred __rcu *real_cred; /* objective and real subjective task
                                         * credentials (COW) */
-       const struct cred *cred;        /* effective (overridable) subjective task
+       const struct cred __rcu *cred;  /* effective (overridable) subjective task
                                         * credentials (COW) */
        struct mutex cred_guard_mutex;  /* guard against foreign influences on
                                         * credential calculations
@@ -1419,7 +1428,7 @@ struct task_struct {
 #endif
 #ifdef CONFIG_CGROUPS
        /* Control Group info protected by css_set_lock */
-       struct css_set *cgroups;
+       struct css_set __rcu *cgroups;
        /* cg_list protected by css_set_lock and tsk->alloc_lock */
        struct list_head cg_list;
 #endif
@@ -1432,7 +1441,7 @@ struct task_struct {
        struct futex_pi_state *pi_state_cache;
 #endif
 #ifdef CONFIG_PERF_EVENTS
-       struct perf_event_context *perf_event_ctxp;
+       struct perf_event_context *perf_event_ctxp[perf_nr_task_contexts];
        struct mutex perf_event_mutex;
        struct list_head perf_event_list;
 #endif
@@ -1740,7 +1749,7 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *
 #define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
 #define used_math() tsk_used_math(current)
 
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
 
 #define RCU_READ_UNLOCK_BLOCKED (1 << 0) /* blocked while in RCU read-side. */
 #define RCU_READ_UNLOCK_NEED_QS (1 << 1) /* RCU core needs CPU response. */
@@ -1749,7 +1758,9 @@ static inline void rcu_copy_process(struct task_struct *p)
 {
        p->rcu_read_lock_nesting = 0;
        p->rcu_read_unlock_special = 0;
+#ifdef CONFIG_TREE_PREEMPT_RCU
        p->rcu_blocked_node = NULL;
+#endif
        INIT_LIST_HEAD(&p->rcu_node_entry);
 }