fedora core 2.6.10-1.12-FC2

[linux-2.6.git] / kernel / workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index ee77ccd..ea48c47 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -444,6 +444,37 @@ int current_is_keventd(void)
 
 }
 
+static struct cpu_workqueue_struct saved_cwq;
+
+void dump_clear_workqueue(void)
+{
+       int cpu = smp_processor_id();
+       struct cpu_workqueue_struct *cwq = keventd_wq->cpu_wq + cpu;
+
+       memcpy(&saved_cwq, cwq, sizeof(saved_cwq));
+       spin_lock_init(&cwq->lock);
+       INIT_LIST_HEAD(&cwq->worklist);
+       init_waitqueue_head(&cwq->more_work);
+       init_waitqueue_head(&cwq->work_done);
+}
+
+void dump_run_workqueue(void)
+{
+       struct cpu_workqueue_struct *cwq;
+
+       cwq = keventd_wq->cpu_wq + smp_processor_id();
+       while (!list_empty(&cwq->worklist)) {
+               struct work_struct *work = list_entry(cwq->worklist.next,
+                                               struct work_struct, entry);
+               void (*f) (void *) = work->func;
+               void *data = work->data;
+
+               list_del_init(cwq->worklist.next);
+               clear_bit(0, &work->pending);
+               f(data);
+       }
+}
+
 #ifdef CONFIG_HOTPLUG_CPU
 /* Take the work from this (downed) CPU. */
 static void take_over_work(struct workqueue_struct *wq, unsigned int cpu)
@@ -527,3 +558,6 @@ EXPORT_SYMBOL(schedule_work);
 EXPORT_SYMBOL(schedule_delayed_work);
 EXPORT_SYMBOL(schedule_delayed_work_on);
 EXPORT_SYMBOL(flush_scheduled_work);
+
+EXPORT_SYMBOL_GPL(dump_clear_workqueue);
+EXPORT_SYMBOL_GPL(dump_run_workqueue);