[libata] get-identity ioctl: Fix use of invalid memory pointer

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

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index a342b03..f2d8638 100644 (file)
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -79,7 +79,10 @@ struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh_state);
 DEFINE_PER_CPU(struct rcu_data, rcu_bh_data);
 
 #ifdef CONFIG_NO_HZ
-DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks);
+DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
+       .dynticks_nesting = 1,
+       .dynticks = 1,
+};
 #endif /* #ifdef CONFIG_NO_HZ */
 
 static int blimit = 10;                /* Maximum callbacks per softirq. */
@@ -572,6 +575,7 @@ rcu_start_gp(struct rcu_state *rsp, unsigned long flags)
        /* Special-case the common single-level case. */
        if (NUM_RCU_NODES == 1) {
                rnp->qsmask = rnp->qsmaskinit;
+               rsp->signaled = RCU_SIGNAL_INIT; /* force_quiescent_state OK. */
                spin_unlock_irqrestore(&rnp->lock, flags);
                return;
        }
@@ -1379,13 +1383,6 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp)
 
 static void __cpuinit rcu_online_cpu(int cpu)
 {
-#ifdef CONFIG_NO_HZ
-       struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
-
-       rdtp->dynticks_nesting = 1;
-       rdtp->dynticks |= 1;    /* need consecutive #s even for hotplug. */
-       rdtp->dynticks_nmi = (rdtp->dynticks_nmi + 1) & ~0x1;
-#endif /* #ifdef CONFIG_NO_HZ */
        rcu_init_percpu_data(cpu, &rcu_state);
        rcu_init_percpu_data(cpu, &rcu_bh_state);
        open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);