Commit 5752dc78 authored Jan 28, 2021 by Damien Le Moal Committed by Jens Axboe Feb 10, 2021

nullb: use blk_queue_set_zoned() to setup zoned devices



Use blk_queue_set_zoned() to set a nullb device zone model instead of
directly assigning the device queue zoned limit. This initialization of
the devicve zoned model as well as the setup of the queue flag
QUEUE_FLAG_ZONE_RESETALL and of the device queue elevator feature are
moved from null_init_zoned_dev() to null_register_zoned_dev() so that
the initialization of the queue limits is done when the gendisk of the
nullb device is available.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@edc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 73d90386

drivers/block/null_blk/zoned.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -146,10 +146,6 @@ int null_init_zoned_dev(struct nullb_device dev, struct request_queue q)
		sector += dev->zone_size_sects;
		}

		q->limits.zoned = BLK_ZONED_HM;
		blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
		blk_queue_required_elevator_features(q, ELEVATOR_F_ZBD_SEQ_WRITE);

		return 0;
		}

		@@ -158,6 +154,10 @@ int null_register_zoned_dev(struct nullb *nullb)
		struct nullb_device *dev = nullb->dev;
		struct request_queue *q = nullb->q;

		blk_queue_set_zoned(nullb->disk, BLK_ZONED_HM);
		blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
		blk_queue_required_elevator_features(q, ELEVATOR_F_ZBD_SEQ_WRITE);

		if (queue_is_mq(q)) {
		int ret = blk_revalidate_disk_zones(nullb->disk, NULL);