diff options
| -rw-r--r-- | kernel/workqueue.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 0eb9b33..985902e 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -86,6 +86,14 @@ static const cpumask_t *wq_cpu_map(struct workqueue_struct *wq) ? &cpu_singlethread_map : &cpu_populated_map; } +static +struct cpu_workqueue_struct *wq_per_cpu(struct workqueue_struct *wq, int cpu) +{ + if (unlikely(is_single_threaded(wq))) + cpu = singlethread_cpu; + return per_cpu_ptr(wq->cpu_wq, cpu); +} + /* * Set the workqueue on which a work item is to be run * - Must *only* be called if the pending flag is set @@ -142,16 +150,14 @@ static void __queue_work(struct cpu_workqueue_struct *cwq, */ int fastcall queue_work(struct workqueue_struct *wq, struct work_struct *work) { - int ret = 0, cpu = get_cpu(); + int ret = 0; if (!test_and_set_bit(WORK_STRUCT_PENDING, work_data_bits(work))) { - if (unlikely(is_single_threaded(wq))) - cpu = singlethread_cpu; BUG_ON(!list_empty(&work->entry)); - __queue_work(per_cpu_ptr(wq->cpu_wq, cpu), work); + __queue_work(wq_per_cpu(wq, get_cpu()), work); + put_cpu(); ret = 1; } - put_cpu(); return ret; } EXPORT_SYMBOL_GPL(queue_work); @@ -161,12 +167,8 @@ void delayed_work_timer_fn(unsigned long __data) struct delayed_work *dwork = (struct delayed_work *)__data; struct cpu_workqueue_struct *cwq = get_wq_data(&dwork->work); struct workqueue_struct *wq = cwq->wq; - int cpu = smp_processor_id(); - - if (unlikely(is_single_threaded(wq))) - cpu = singlethread_cpu; - __queue_work(per_cpu_ptr(wq->cpu_wq, cpu), &dwork->work); + __queue_work(wq_per_cpu(wq, smp_processor_id()), &dwork->work); } /** @@ -209,9 +211,7 @@ int queue_delayed_work_on(int cpu, struct workqueue_struct *wq, BUG_ON(!list_empty(&work->entry)); /* This stores cwq for the moment, for the timer_fn */ - set_wq_data(work, - per_cpu_ptr(wq->cpu_wq, wq->singlethread ? - singlethread_cpu : raw_smp_processor_id())); + set_wq_data(work, wq_per_cpu(wq, raw_smp_processor_id())); timer->expires = jiffies + delay; timer->data = (unsigned long)dwork; timer->function = delayed_work_timer_fn; |