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blk-mq: turn hctx->run_work into a regular work struct

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We don't need the larger delayed work struct, since we always run it
immediately.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe
2016-08-24 15:54:25 -06:00
parent ee63cfa7fc
commit 27489a3c82
3 changed files with 6 additions and 7 deletions
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block/blk-mq.c
+4 -5
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@@ -936,8 +936,7 @@ void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async)
put_cpu();
}
kblockd_schedule_delayed_work_on(blk_mq_hctx_next_cpu(hctx),
&hctx->run_work, 0);
kblockd_schedule_work_on(blk_mq_hctx_next_cpu(hctx), &hctx->run_work);
}
void blk_mq_run_hw_queues(struct request_queue *q, bool async)
@@ -958,7 +957,7 @@ EXPORT_SYMBOL(blk_mq_run_hw_queues);
void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx)
{
cancel_delayed_work(&hctx->run_work);
cancel_work(&hctx->run_work);
cancel_delayed_work(&hctx->delay_work);
set_bit(BLK_MQ_S_STOPPED, &hctx->state);
}
@@ -1011,7 +1010,7 @@ static void blk_mq_run_work_fn(struct work_struct *work)
{
struct blk_mq_hw_ctx *hctx;
hctx = container_of(work, struct blk_mq_hw_ctx, run_work.work);
hctx = container_of(work, struct blk_mq_hw_ctx, run_work);
__blk_mq_run_hw_queue(hctx);
}
@@ -1722,7 +1721,7 @@ static int blk_mq_init_hctx(struct request_queue *q,
if (node == NUMA_NO_NODE)
node = hctx->numa_node = set->numa_node;
INIT_DELAYED_WORK(&hctx->run_work, blk_mq_run_work_fn);
INIT_WORK(&hctx->run_work, blk_mq_run_work_fn);
INIT_DELAYED_WORK(&hctx->delay_work, blk_mq_delay_work_fn);
spin_lock_init(&hctx->lock);
INIT_LIST_HEAD(&hctx->dispatch);