[patch 1/1] gfs2: get_sb_dev() fix

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

diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index d9b3d58..6b76caa 100644 (file)
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -36,7 +36,7 @@ static struct notifier_block panic_block = {
 
 void touch_softlockup_watchdog(void)
 {
-       per_cpu(touch_timestamp, raw_smp_processor_id()) = jiffies;
+       __raw_get_cpu_var(touch_timestamp) = jiffies;
 }
 EXPORT_SYMBOL(touch_softlockup_watchdog);
 
@@ -127,6 +127,8 @@ cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
                break;
 #ifdef CONFIG_HOTPLUG_CPU
        case CPU_UP_CANCELED:
+               if (!per_cpu(watchdog_task, hotcpu))
+                       break;
                /* Unbind so it can run.  Fall thru. */
                kthread_bind(per_cpu(watchdog_task, hotcpu),
                             any_online_cpu(cpu_online_map));
@@ -152,5 +154,5 @@ __init void spawn_softlockup_task(void)
        cpu_callback(&cpu_nfb, CPU_ONLINE, cpu);
        register_cpu_notifier(&cpu_nfb);
 
-       notifier_chain_register(&panic_notifier_list, &panic_block);
+       atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
 }