[PATCH V12 3/3] blk-mq: replace and kill blk_mq_request_issue_directly

[Jianchao Wang]

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.w...@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 c663102..999e811 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1794,7 +1794,7 @@ static blk_status_t __blk_mq_issue_directly(struct 
blk_mq_hw_ctx *hctx,
        return ret;
 }
 
-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)
@@ -1867,13 +1867,6 @@ 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