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block: use cancel_work_sync() instead of kblockd_flush_work()

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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>
This commit is contained in:
Cheng Renquan 2008-12-03 12:41:39 +01:00 committed by Jens Axboe
parent 08bafc0341
commit 64d01dc9e1
4 changed files with 3 additions and 10 deletions
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2
block/as-iosched.c
View file

@ -1344,7 +1344,7 @@ static void as_exit_queue(elevator_t *e)
struct as_data *ad = e->elevator_data;
del_timer_sync(&ad->antic_timer);
kblockd_flush_work(&ad->antic_work);
cancel_work_sync(&ad->antic_work);
BUG_ON(!list_empty(&ad->fifo_list[REQ_SYNC]));
BUG_ON(!list_empty(&ad->fifo_list[REQ_ASYNC]));

8
block/blk-core.c
View file

@ -408,7 +408,7 @@ void blk_sync_queue(struct request_queue *q)
{
del_timer_sync(&q->unplug_timer);
del_timer_sync(&q->timeout);
kblockd_flush_work(&q->unplug_work);
cancel_work_sync(&q->unplug_work);
}
EXPORT_SYMBOL(blk_sync_queue);
@ -2147,12 +2147,6 @@ int kblockd_schedule_work(struct request_queue *q, struct work_struct *work)
}
EXPORT_SYMBOL(kblockd_schedule_work);
void kblockd_flush_work(struct work_struct *work)
{
cancel_work_sync(work);
}
EXPORT_SYMBOL(kblockd_flush_work);
int __init blk_dev_init(void)
{
kblockd_workqueue = create_workqueue("kblockd");

2
block/cfq-iosched.c
View file

@ -2160,7 +2160,7 @@ out_cont:
static void cfq_shutdown_timer_wq(struct cfq_data *cfqd)
{
del_timer_sync(&cfqd->idle_slice_timer);
kblockd_flush_work(&cfqd->unplug_work);
cancel_work_sync(&cfqd->unplug_work);
}
static void cfq_put_async_queues(struct cfq_data *cfqd)

1
include/linux/blkdev.h
View file

@ -978,7 +978,6 @@ static inline void put_dev_sector(Sector p)
struct work_struct;
int kblockd_schedule_work(struct request_queue *q, struct work_struct *work);
void kblockd_flush_work(struct work_struct *work);
#define MODULE_ALIAS_BLOCKDEV(major,minor) \
MODULE_ALIAS("block-major-" __stringify(major) "-" __stringify(minor))