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block: use cancel_work_sync() instead of kblockd_flush_work()
After many improvements on kblockd_flush_work, it is now identical to cancel_work_sync, so a direct call to cancel_work_sync is suggested. The only difference is that cancel_work_sync is a GPL symbol, so no non-GPL modules anymore. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -1344,7 +1344,7 @@ static void as_exit_queue(elevator_t *e)
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struct as_data *ad = e->elevator_data;
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del_timer_sync(&ad->antic_timer);
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kblockd_flush_work(&ad->antic_work);
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cancel_work_sync(&ad->antic_work);
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BUG_ON(!list_empty(&ad->fifo_list[REQ_SYNC]));
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BUG_ON(!list_empty(&ad->fifo_list[REQ_ASYNC]));
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@ -408,7 +408,7 @@ void blk_sync_queue(struct request_queue *q)
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{
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del_timer_sync(&q->unplug_timer);
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del_timer_sync(&q->timeout);
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kblockd_flush_work(&q->unplug_work);
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cancel_work_sync(&q->unplug_work);
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}
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EXPORT_SYMBOL(blk_sync_queue);
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@ -2147,12 +2147,6 @@ int kblockd_schedule_work(struct request_queue *q, struct work_struct *work)
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}
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EXPORT_SYMBOL(kblockd_schedule_work);
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void kblockd_flush_work(struct work_struct *work)
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{
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cancel_work_sync(work);
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}
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EXPORT_SYMBOL(kblockd_flush_work);
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int __init blk_dev_init(void)
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{
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kblockd_workqueue = create_workqueue("kblockd");
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@ -2160,7 +2160,7 @@ out_cont:
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static void cfq_shutdown_timer_wq(struct cfq_data *cfqd)
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{
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del_timer_sync(&cfqd->idle_slice_timer);
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kblockd_flush_work(&cfqd->unplug_work);
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cancel_work_sync(&cfqd->unplug_work);
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}
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static void cfq_put_async_queues(struct cfq_data *cfqd)
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@ -978,7 +978,6 @@ static inline void put_dev_sector(Sector p)
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struct work_struct;
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int kblockd_schedule_work(struct request_queue *q, struct work_struct *work);
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void kblockd_flush_work(struct work_struct *work);
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#define MODULE_ALIAS_BLOCKDEV(major,minor) \
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MODULE_ALIAS("block-major-" __stringify(major) "-" __stringify(minor))
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