diff mbox series

[v3,04/30] block: Introduce blk_zone_update_request_bio()

Message ID 20240328004409.594888-5-dlemoal@kernel.org
State New
Headers show
Series Zone write plugging | expand

Commit Message

Damien Le Moal March 28, 2024, 12:43 a.m. UTC 
On completion of a zone append request, the request sector indicates the
location of the written data. This value must be returned to the user
through the BIO iter sector. This is done in 2 places: in
blk_complete_request() and in blk_update_request(). Introduce the inline
helper function blk_zone_update_request_bio() to avoid duplicating
this BIO update for zone append requests, and to compile out this
helper call when CONFIG_BLK_DEV_ZONED is not enabled.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
 block/blk-mq.c | 11 +++++------
 block/blk.h    | 19 ++++++++++++++++++-
 2 files changed, 23 insertions(+), 7 deletions(-)

Comments

Bart Van Assche March 28, 2024, 9:31 p.m. UTC | #1 
On 3/27/24 5:43 PM, Damien Le Moal wrote:
> On completion of a zone append request, the request sector indicates the
> location of the written data. This value must be returned to the user
> through the BIO iter sector. This is done in 2 places: in
> blk_complete_request() and in blk_update_request(). Introduce the inline
> helper function blk_zone_update_request_bio() to avoid duplicating
> this BIO update for zone append requests, and to compile out this
> helper call when CONFIG_BLK_DEV_ZONED is not enabled.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
diff mbox series

Patch

diff --git a/block/blk-mq.c b/block/blk-mq.c
index e55af6058cbf..70dfb4af65cf 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -820,11 +820,11 @@  static void blk_complete_request(struct request *req)
 		/* Completion has already been traced */
 		bio_clear_flag(bio, BIO_TRACE_COMPLETION);
 
-		if (req_op(req) == REQ_OP_ZONE_APPEND)
-			bio->bi_iter.bi_sector = req->__sector;
-
-		if (!is_flush)
+		if (!is_flush) {
+			blk_zone_update_request_bio(req, bio);
 			bio_endio(bio);
+		}
+
 		bio = next;
 	} while (bio);
 
@@ -923,8 +923,7 @@  bool blk_update_request(struct request *req, blk_status_t error,
 
 		/* Don't actually finish bio if it's part of flush sequence */
 		if (!bio->bi_iter.bi_size && !is_flush) {
-			if (req_op(req) == REQ_OP_ZONE_APPEND)
-				bio->bi_iter.bi_sector = req->__sector;
+			blk_zone_update_request_bio(req, bio);
 			bio_endio(bio);
 		}
 
diff --git a/block/blk.h b/block/blk.h
index 5cac4e29ae17..a12cde1d45de 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -409,12 +409,29 @@  static inline struct bio *blk_queue_bounce(struct bio *bio,
 
 #ifdef CONFIG_BLK_DEV_ZONED
 void disk_free_zone_bitmaps(struct gendisk *disk);
+static inline void blk_zone_update_request_bio(struct request *rq,
+					       struct bio *bio)
+{
+	/*
+	 * For zone append requests, the request sector indicates the location
+	 * at which the BIO data was written. Return this value to the BIO
+	 * issuer through the BIO iter sector.
+	 */
+	if (req_op(rq) == REQ_OP_ZONE_APPEND)
+		bio->bi_iter.bi_sector = rq->__sector;
+}
 int blkdev_report_zones_ioctl(struct block_device *bdev, unsigned int cmd,
 		unsigned long arg);
 int blkdev_zone_mgmt_ioctl(struct block_device *bdev, blk_mode_t mode,
 		unsigned int cmd, unsigned long arg);
 #else /* CONFIG_BLK_DEV_ZONED */
-static inline void disk_free_zone_bitmaps(struct gendisk *disk) {}
+static inline void disk_free_zone_bitmaps(struct gendisk *disk)
+{
+}
+static inline void blk_zone_update_request_bio(struct request *rq,
+					       struct bio *bio)
+{
+}
 static inline int blkdev_report_zones_ioctl(struct block_device *bdev,
 		unsigned int cmd, unsigned long arg)
 {