Merge tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Improve the type checking of request flags (Bart)

 - Ensure queue mapping for a single queues always picks the right queue
   (Bart)

 - Sanitize the io priority handling (Jan)

 - rq-qos race fix (Jinke)

 - Reserved tags handling improvements (John)

 - Separate memory alignment from file/disk offset aligment for O_DIRECT
   (Keith)

 - Add new ublk driver, userspace block driver using io_uring for
   communication with the userspace backend (Ming)

 - Use try_cmpxchg() to cleanup the code in various spots (Uros)

 - Finally remove bdevname() (Christoph)

 - Clean up the zoned device handling (Christoph)

 - Clean up independent access range support (Christoph)

 - Clean up and improve block sysfs handling (Christoph)

 - Clean up and improve teardown of block devices.

   This turns the usual two step process into something that is simpler
   to implement and handle in block drivers (Christoph)

 - Clean up chunk size handling (Christoph)

 - Misc cleanups and fixes (Bart, Bo, Dan, GuoYong, Jason, Keith, Liu,
   Ming, Sebastian, Yang, Ying)

* tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block: (178 commits)
  ublk_drv: fix double shift bug
  ublk_drv: make sure that correct flags(features) returned to userspace
  ublk_drv: fix error handling of ublk_add_dev
  ublk_drv: fix lockdep warning
  block: remove __blk_get_queue
  block: call blk_mq_exit_queue from disk_release for never added disks
  blk-mq: fix error handling in __blk_mq_alloc_disk
  ublk: defer disk allocation
  ublk: rewrite ublk_ctrl_get_queue_affinity to not rely on hctx->cpumask
  ublk: fold __ublk_create_dev into ublk_ctrl_add_dev
  ublk: cleanup ublk_ctrl_uring_cmd
  ublk: simplify ublk_ch_open and ublk_ch_release
  ublk: remove the empty open and release block device operations
  ublk: remove UBLK_IO_F_PREFLUSH
  ublk: add a MAINTAINERS entry
  block: don't allow the same type rq_qos add more than once
  mmc: fix disk/queue leak in case of adding disk failure
  ublk_drv: fix an IS_ERR() vs NULL check
  ublk: remove UBLK_IO_F_INTEGRITY
  ublk_drv: remove unneeded semicolon
  ...

1 files changed, 15 insertions, 18 deletions

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 2b75f1ef7386..54c2a23f4e55 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -716,7 +716,7 @@ static void dm_put_live_table_fast(struct mapped_device *md) __releases(RCU)
 }
 
 static inline struct dm_table *dm_get_live_table_bio(struct mapped_device *md,
-						     int *srcu_idx, unsigned bio_opf)
+					int *srcu_idx, blk_opf_t bio_opf)
 {
 	if (bio_opf & REQ_NOWAIT)
 		return dm_get_live_table_fast(md);
@@ -725,7 +725,7 @@ static inline struct dm_table *dm_get_live_table_bio(struct mapped_device *md,
 }
 
 static inline void dm_put_live_table_bio(struct mapped_device *md, int srcu_idx,
-					 unsigned bio_opf)
+					 blk_opf_t bio_opf)
 {
 	if (bio_opf & REQ_NOWAIT)
 		dm_put_live_table_fast(md);
@@ -1033,7 +1033,7 @@ static void clone_endio(struct bio *bio)
 	}
 
 	if (static_branch_unlikely(&zoned_enabled) &&
-	    unlikely(blk_queue_is_zoned(bdev_get_queue(bio->bi_bdev))))
+	    unlikely(bdev_is_zoned(bio->bi_bdev)))
 		dm_zone_endio(io, bio);
 
 	if (endio) {
@@ -1086,23 +1086,18 @@ static sector_t max_io_len(struct dm_target *ti, sector_t sector)
 {
 	sector_t target_offset = dm_target_offset(ti, sector);
 	sector_t len = max_io_len_target_boundary(ti, target_offset);
-	sector_t max_len;
 
 	/*
 	 * Does the target need to split IO even further?
 	 * - varied (per target) IO splitting is a tenet of DM; this
 	 *   explains why stacked chunk_sectors based splitting via
-	 *   blk_max_size_offset() isn't possible here. So pass in
-	 *   ti->max_io_len to override stacked chunk_sectors.
+	 *   blk_queue_split() isn't possible here.
 	 */
-	if (ti->max_io_len) {
-		max_len = blk_max_size_offset(ti->table->md->queue,
-					      target_offset, ti->max_io_len);
-		if (len > max_len)
-			len = max_len;
-	}
-
-	return len;
+	if (!ti->max_io_len)
+		return len;
+	return min_t(sector_t, len,
+		min(queue_max_sectors(ti->table->md->queue),
+		    blk_chunk_sectors_left(target_offset, ti->max_io_len)));
 }
 
 int dm_set_target_max_io_len(struct dm_target *ti, sector_t len)
@@ -1516,7 +1511,7 @@ static void __send_changing_extent_only(struct clone_info *ci, struct dm_target
 
 static bool is_abnormal_io(struct bio *bio)
 {
-	unsigned int op = bio_op(bio);
+	enum req_op op = bio_op(bio);
 
 	if (op != REQ_OP_READ && op != REQ_OP_WRITE && op != REQ_OP_FLUSH) {
 		switch (op) {
@@ -1547,6 +1542,8 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 	case REQ_OP_WRITE_ZEROES:
 		num_bios = ti->num_write_zeroes_bios;
 		break;
+	default:
+		break;
 	}
 
 	/*
@@ -1628,7 +1625,7 @@ static blk_status_t __split_and_process_bio(struct clone_info *ci)
 	 * Only support bio polling for normal IO, and the target io is
 	 * exactly inside the dm_io instance (verified in dm_poll_dm_io)
 	 */
-	ci->submit_as_polled = ci->bio->bi_opf & REQ_POLLED;
+	ci->submit_as_polled = !!(ci->bio->bi_opf & REQ_POLLED);
 
 	len = min_t(sector_t, max_io_len(ti, ci->sector), ci->sector_count);
 	setup_split_accounting(ci, len);
@@ -1725,7 +1722,7 @@ static void dm_submit_bio(struct bio *bio)
 	struct mapped_device *md = bio->bi_bdev->bd_disk->private_data;
 	int srcu_idx;
 	struct dm_table *map;
-	unsigned bio_opf = bio->bi_opf;
+	blk_opf_t bio_opf = bio->bi_opf;
 
 	map = dm_get_live_table_bio(md, &srcu_idx, bio_opf);
 
@@ -1899,7 +1896,7 @@ static void cleanup_mapped_device(struct mapped_device *md)
 			del_gendisk(md->disk);
 		}
 		dm_queue_destroy_crypto_profile(md->queue);
-		blk_cleanup_disk(md->disk);
+		put_disk(md->disk);
 	}
 
 	if (md->pending_io) {