Factor out common code for setting REQ_NOMERGE
flag which is being used out at certain places
and make it a helper instead (req_set_nomerge).
Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxxx>
---
block/blk-merge.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 2642e5f..4549fec 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -492,6 +492,14 @@ int blk_rq_map_sg(struct request_queue *q, struct request *rq,
}
EXPORT_SYMBOL(blk_rq_map_sg);
+static inline void req_set_nomerge(struct request_queue *q,
+ struct request *req)
+{
+ req->cmd_flags |= REQ_NOMERGE;
+ if (req == q->last_merge)
+ q->last_merge = NULL;
+}
+
static inline int ll_new_hw_segment(struct request_queue *q,
struct request *req,
struct bio *bio)
@@ -512,9 +520,7 @@ static inline int ll_new_hw_segment(struct request_queue *q,
return 1;
no_merge:
- req->cmd_flags |= REQ_NOMERGE;
- if (req == q->last_merge)
- q->last_merge = NULL;
+ req_set_nomerge(q, req);
return 0;
}
@@ -528,9 +534,7 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req,
return 0;
if (blk_rq_sectors(req) + bio_sectors(bio) >
blk_rq_get_max_sectors(req, blk_rq_pos(req))) {
- req->cmd_flags |= REQ_NOMERGE;
- if (req == q->last_merge)
- q->last_merge = NULL;
+ req_set_nomerge(q, req);
return 0;
}
if (!bio_flagged(req->biotail, BIO_SEG_VALID))
@@ -552,9 +556,7 @@ int ll_front_merge_fn(struct request_queue *q, struct request *req,
return 0;
if (blk_rq_sectors(req) + bio_sectors(bio) >
blk_rq_get_max_sectors(req, bio->bi_iter.bi_sector)) {
- req->cmd_flags |= REQ_NOMERGE;
- if (req == q->last_merge)
- q->last_merge = NULL;
+ req_set_nomerge(q, req);
return 0;
}
if (!bio_flagged(bio, BIO_SEG_VALID))
--
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