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[RFC,14/21] scm_blk: use lib tagset init helper

Message ID 20221005032257.80681-15-kch@nvidia.com
State New
Headers show
Series block: add and use init tagset helper | expand

Commit Message

Chaitanya Kulkarni Oct. 5, 2022, 3:22 a.m. UTC 
Use the block layer helper to initialize the common fields of tag_set
such as blk_mq_ops, number of h/w queues, queue depth, command size,
numa_node, timeout, BLK_MQ_F_XXX flags, driver data. This initialization
is spread all over the block drivers. This avoids the code repetation of
the inialization code of the tag set in current block drivers and any
future ones.

Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
---
 drivers/s390/block/scm_blk.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)
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Patch

diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index 0c1df1d5f1ac..4b1653fd71a5 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -450,13 +450,9 @@  int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
 	spin_lock_init(&bdev->lock);
 	atomic_set(&bdev->queued_reqs, 0);
 
-	bdev->tag_set.ops = &scm_mq_ops;
-	bdev->tag_set.cmd_size = sizeof(blk_status_t);
-	bdev->tag_set.nr_hw_queues = nr_requests;
-	bdev->tag_set.queue_depth = nr_requests_per_io * nr_requests;
-	bdev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
-	bdev->tag_set.numa_node = NUMA_NO_NODE;
-
+	blk_mq_init_tag_set(&bdev->tag_set, nr_requests,
+			nr_requests_per_io * nr_requests, sizeof(blk_status_t),
+			NUMA_NO_NODE, BLK_MQ_F_SHOULD_MERGE, NULL);
 	ret = blk_mq_alloc_tag_set(&bdev->tag_set);
 	if (ret)
 		goto out;