Remove executable permission for dma.c

[linux-2.6-omap-h63xx.git] / kernel / rcutree.c

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index b2fd602a6f6f0433553a36a79e3a24172a8a2a2f..7f3266922572b150cb62e6e50b321b6bee88fd94 100644 (file)
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -78,6 +78,26 @@ DEFINE_PER_CPU(struct rcu_data, rcu_data);
 struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh_state);
 DEFINE_PER_CPU(struct rcu_data, rcu_bh_data);
 
+/*
+ * Increment the quiescent state counter.
+ * The counter is a bit degenerated: We do not need to know
+ * how many quiescent states passed, just if there was at least
+ * one since the start of the grace period. Thus just a flag.
+ */
+void rcu_qsctr_inc(int cpu)
+{
+       struct rcu_data *rdp = &per_cpu(rcu_data, cpu);
+       rdp->passed_quiesc = 1;
+       rdp->passed_quiesc_completed = rdp->completed;
+}
+
+void rcu_bh_qsctr_inc(int cpu)
+{
+       struct rcu_data *rdp = &per_cpu(rcu_bh_data, cpu);
+       rdp->passed_quiesc = 1;
+       rdp->passed_quiesc_completed = rdp->completed;
+}
+
 #ifdef CONFIG_NO_HZ
 DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
        .dynticks_nesting = 1,
@@ -948,8 +968,8 @@ static void rcu_do_batch(struct rcu_data *rdp)
 void rcu_check_callbacks(int cpu, int user)
 {
        if (user ||
-           (idle_cpu(cpu) && !in_softirq() &&
-                               hardirq_count() <= (1 << HARDIRQ_SHIFT))) {
+           (idle_cpu(cpu) && rcu_scheduler_active &&
+            !in_softirq() && hardirq_count() <= (1 << HARDIRQ_SHIFT))) {
 
                /*
                 * Get here if this CPU took its interrupt from user