rcu: Changes from reviews: avoid casts, fix/add warnings, improve comments

[safe/jmp/linux-2.6] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index bfca26d..855fd0d 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1163,6 +1163,8 @@ struct sched_rt_entity {
 #endif
 };
 
+struct rcu_node;
+
 struct task_struct {
        volatile long state;    /* -1 unrunnable, 0 runnable, >0 stopped */
        void *stack;
@@ -1208,7 +1210,7 @@ struct task_struct {
 #ifdef CONFIG_TREE_PREEMPT_RCU
        int rcu_read_lock_nesting;
        char rcu_read_unlock_special;
-       int rcu_blocked_cpu;
+       struct rcu_node *rcu_blocked_node;
        struct list_head rcu_node_entry;
 #endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
 
@@ -1735,7 +1737,7 @@ static inline void rcu_copy_process(struct task_struct *p)
 {
        p->rcu_read_lock_nesting = 0;
        p->rcu_read_unlock_special = 0;
-       p->rcu_blocked_cpu = -1;
+       p->rcu_blocked_node = NULL;
        INIT_LIST_HEAD(&p->rcu_node_entry);
 }