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Subject[PATCH V8 3/3] 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 | 7 ++++---
3 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index fdc0ad2..e4eedc7 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1421,6 +1421,8 @@ 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_cookie;
+
if (blk_cloned_rq_check_limits(q, rq))
return BLK_STS_IOERR;

@@ -1436,7 +1438,7 @@ 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);
+ return blk_mq_try_issue_directly(rq->mq_hctx, rq, &unused_cookie, true);
}
EXPORT_SYMBOL_GPL(blk_insert_cloned_request);

diff --git a/block/blk-mq.c b/block/blk-mq.c
index c8566f9..784ca6b 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1766,7 +1766,7 @@ 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)
@@ -1830,13 +1830,6 @@ 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)
-{
- blk_qc_t unused_cookie;
-
- return blk_mq_try_issue_directly(rq->mq_hctx, rq, &unused_cookie, true);
-}
-
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 facb6e9..f18c27c 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -61,9 +61,10 @@ void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
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);
+blk_status_t blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
+ struct request *rq,
+ blk_qc_t *cookie,
+ bool bypass);
void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
struct list_head *list);

--
2.7.4
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