diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/workqueue.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 6b186750e9b..db49886bfae 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -85,22 +85,19 @@ static inline int is_single_threaded(struct workqueue_struct *wq) return list_empty(&wq->list); } +/* + * Set the workqueue on which a work item is to be run + * - Must *only* be called if the pending flag is set + */ static inline void set_wq_data(struct work_struct *work, void *wq) { - unsigned long new, old, res; + unsigned long new; + + BUG_ON(!work_pending(work)); - /* assume the pending flag is already set and that the task has already - * been queued on this workqueue */ new = (unsigned long) wq | (1UL << WORK_STRUCT_PENDING); - res = work->management; - if (res != new) { - do { - old = res; - new = (unsigned long) wq; - new |= (old & WORK_STRUCT_FLAG_MASK); - res = cmpxchg(&work->management, old, new); - } while (res != old); - } + new |= work->management & WORK_STRUCT_FLAG_MASK; + work->management = new; } static inline void *get_wq_data(struct work_struct *work) |