Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...

[pandora-kernel.git] / kernel / rcupdate.c

diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 20e9710..759805c 100644 (file)
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -53,13 +53,13 @@
 static struct rcu_ctrlblk rcu_ctrlblk = {
        .cur = -300,
        .completed = -300,
-       .lock = SPIN_LOCK_UNLOCKED,
+       .lock = __SPIN_LOCK_UNLOCKED(&rcu_ctrlblk.lock),
        .cpumask = CPU_MASK_NONE,
 };
 static struct rcu_ctrlblk rcu_bh_ctrlblk = {
        .cur = -300,
        .completed = -300,
-       .lock = SPIN_LOCK_UNLOCKED,
+       .lock = __SPIN_LOCK_UNLOCKED(&rcu_bh_ctrlblk.lock),
        .cpumask = CPU_MASK_NONE,
 };
 
@@ -182,6 +182,15 @@ long rcu_batches_completed(void)
        return rcu_ctrlblk.completed;
 }
 
+/*
+ * Return the number of RCU batches processed thus far.  Useful
+ * for debug and statistics.
+ */
+long rcu_batches_completed_bh(void)
+{
+       return rcu_bh_ctrlblk.completed;
+}
+
 static void rcu_barrier_callback(struct rcu_head *notused)
 {
        if (atomic_dec_and_test(&rcu_barrier_cpu_count))
@@ -539,7 +548,7 @@ static void __devinit rcu_online_cpu(int cpu)
        tasklet_init(&per_cpu(rcu_tasklet, cpu), rcu_process_callbacks, 0UL);
 }
 
-static int rcu_cpu_notify(struct notifier_block *self,
+static int __devinit rcu_cpu_notify(struct notifier_block *self,
                                unsigned long action, void *hcpu)
 {
        long cpu = (long)hcpu;
@@ -556,7 +565,7 @@ static int rcu_cpu_notify(struct notifier_block *self,
        return NOTIFY_OK;
 }
 
-static struct notifier_block rcu_nb = {
+static struct notifier_block __devinitdata rcu_nb = {
        .notifier_call  = rcu_cpu_notify,
 };
 
@@ -619,6 +628,7 @@ module_param(qlowmark, int, 0);
 module_param(rsinterval, int, 0);
 #endif
 EXPORT_SYMBOL_GPL(rcu_batches_completed);
+EXPORT_SYMBOL_GPL(rcu_batches_completed_bh);
 EXPORT_SYMBOL_GPL(call_rcu);
 EXPORT_SYMBOL_GPL(call_rcu_bh);
 EXPORT_SYMBOL_GPL(synchronize_rcu);