ftrace: Create ftrace_hash_empty() helper routine

[karo-tx-linux.git] / kernel / workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 25fb1b0e53faa2c0d008d37986ae495495482b96..42fa9ad0a810482494b5782f4ba9a23f4aa32b86 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -23,7 +23,7 @@
  * Please read Documentation/workqueue.txt for details.
  */
 
-#include <linux/module.h>
+#include <linux/export.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/init.h>
@@ -2412,8 +2412,13 @@ reflush:
 
        for_each_cwq_cpu(cpu, wq) {
                struct cpu_workqueue_struct *cwq = get_cwq(cpu, wq);
+               bool drained;
 
-               if (!cwq->nr_active && list_empty(&cwq->delayed_works))
+               spin_lock_irq(&cwq->gcwq->lock);
+               drained = !cwq->nr_active && list_empty(&cwq->delayed_works);
+               spin_unlock_irq(&cwq->gcwq->lock);
+
+               if (drained)
                        continue;
 
                if (++flush_cnt == 10 ||