workqueue: change cancel_work_sync() to clear work->data

[mirror_ubuntu-bionic-kernel.git] / kernel / workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 0225fea89340a7f23db32adc160dfa24c8aba11b..77dabbf64b8fd45acdab9eb33cde54bad83cba62 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -229,6 +229,16 @@ static inline void set_wq_data(struct work_struct *work,
        atomic_long_set(&work->data, new);
 }
 
+/*
+ * Clear WORK_STRUCT_PENDING and the workqueue on which it was queued.
+ */
+static inline void clear_wq_data(struct work_struct *work)
+{
+       unsigned long flags = *work_data_bits(work) &
+                               (1UL << WORK_STRUCT_STATIC);
+       atomic_long_set(&work->data, flags);
+}
+
 static inline
 struct cpu_workqueue_struct *get_wq_data(struct work_struct *work)
 {
@@ -671,7 +681,7 @@ static int __cancel_work_timer(struct work_struct *work,
                wait_on_work(work);
        } while (unlikely(ret < 0));
 
-       work_clear_pending(work);
+       clear_wq_data(work);
        return ret;
 }