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 <ax...@kernel.dk>
Signed-off-by: Ming Lei <tom.leim...@gmail.com>
---
block/blk-core.c | 11 ++++++++++-
block/blk-mq.c | 1 -
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index accb7fc..c00e0bd 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -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);
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 38b7bde..eaa12ac 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1391,7 +1391,6 @@ 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);
--
1.7.9.5
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