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Subject[PATCH V11 4/4] blk-mq: replace and kill blk_mq_request_issue_directly
Date
Replace blk_mq_request_issue_directly with blk_mq_try_issue_directly
in blk_insert_cloned_request and kill it as nobody uses it any more.

Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com>
---
block/blk-core.c | 4 +++-
block/blk-mq.c | 9 +--------
block/blk-mq.h | 6 ++++--
3 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index ad59102..c92d866 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1297,6 +1297,8 @@ static int blk_cloned_rq_check_limits(struct request_queue *q,
*/
blk_status_t blk_insert_cloned_request(struct request_queue *q, struct request *rq)
{
+ blk_qc_t unused;
+
if (blk_cloned_rq_check_limits(q, rq))
return BLK_STS_IOERR;

@@ -1312,7 +1314,7 @@ blk_status_t blk_insert_cloned_request(struct request_queue *q, struct request *
* bypass a potential scheduler on the bottom device for
* insert.
*/
- return blk_mq_request_issue_directly(rq, true);
+ return blk_mq_try_issue_directly(rq->mq_hctx, rq, &unused, true, true);
}
EXPORT_SYMBOL_GPL(blk_insert_cloned_request);

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 3265e30..32102d0 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1815,7 +1815,7 @@ static bool blk_rq_can_direct_dispatch(struct request *rq)
return req_op(rq) == REQ_OP_READ || req_op(rq) == REQ_OP_WRITE;
}

-static blk_status_t blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
+blk_status_t blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
struct request *rq,
blk_qc_t *cookie,
bool bypass, bool last)
@@ -1894,13 +1894,6 @@ static blk_status_t blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
return ret;
}

-blk_status_t blk_mq_request_issue_directly(struct request *rq, bool last)
-{
- blk_qc_t unused;
-
- return blk_mq_try_issue_directly(rq->mq_hctx, rq, &unused, true, last);
-}
-
void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
struct list_head *list)
{
diff --git a/block/blk-mq.h b/block/blk-mq.h
index a664ea4..b81e619 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -68,8 +68,10 @@ void blk_mq_request_bypass_insert(struct request *rq, bool run_queue);
void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
struct list_head *list);

-/* Used by blk_insert_cloned_request() to issue request directly */
-blk_status_t blk_mq_request_issue_directly(struct request *rq, bool last);
+blk_status_t blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
+ struct request *rq,
+ blk_qc_t *cookie,
+ bool bypass, bool last);
void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
struct list_head *list);

--
2.7.4
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