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block: blk-mq: make blk_sync_queue support mq

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This patch moves synchronization on mq->delay_work
from blk_mq_free_queue() to blk_sync_queue(), so that
blk_sync_queue can work on mq.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2013-12-26 21:31:36 +08:00 committed by Jens Axboe
parent 43a5e4e219
commit f04c1fe761
2 changed files with 10 additions and 2 deletions
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11
block/blk-core.c
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@ -246,7 +246,16 @@ EXPORT_SYMBOL(blk_stop_queue);
void blk_sync_queue(struct request_queue *q)
{
del_timer_sync(&q->timeout);
cancel_delayed_work_sync(&q->delay_work);
if (q->mq_ops) {
struct blk_mq_hw_ctx *hctx;
int i;
queue_for_each_hw_ctx(q, hctx, i)
cancel_delayed_work_sync(&hctx->delayed_work);
} else {
cancel_delayed_work_sync(&q->delay_work);
}
}
EXPORT_SYMBOL(blk_sync_queue);

1
block/blk-mq.c
View File

@ -1440,7 +1440,6 @@ void blk_mq_free_queue(struct request_queue *q)
int i;
queue_for_each_hw_ctx(q, hctx, i) {
cancel_delayed_work_sync(&hctx->delayed_work);
kfree(hctx->ctx_map);
kfree(hctx->ctxs);
blk_mq_free_rq_map(hctx);