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From: Damien Le Moal <damien.lemoal@wdc.com>
To: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
	linux-scsi@vger.kernel.org,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	dm-devel@redhat.com, Mike Snitzer <snitzer@redhat.com>,
	linux-f2fs-devel@lists.sourceforge.net,
	Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <yuchao0@huawei.com>
Subject: [PATCH v2 5/9] null_blk: clean up the block device operations
Date: Mon, 11 Nov 2019 11:39:26 +0900
Message-ID: <20191111023930.638129-6-damien.lemoal@wdc.com> (raw)
In-Reply-To: <20191111023930.638129-1-damien.lemoal@wdc.com>

From: Christoph Hellwig <hch@lst.de>

Remove the pointless stub open and release methods, give the operations
vector a slightly less confusing name, and use normal alignment for the
assignment operators.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 drivers/block/null_blk_main.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c
index 40a64bdd8ea7..89d385bab45b 100644
--- a/drivers/block/null_blk_main.c
+++ b/drivers/block/null_blk_main.c
@@ -1442,20 +1442,9 @@ static void null_config_discard(struct nullb *nullb)
 	blk_queue_flag_set(QUEUE_FLAG_DISCARD, nullb->q);
 }
 
-static int null_open(struct block_device *bdev, fmode_t mode)
-{
-	return 0;
-}
-
-static void null_release(struct gendisk *disk, fmode_t mode)
-{
-}
-
-static const struct block_device_operations null_fops = {
-	.owner =	THIS_MODULE,
-	.open =		null_open,
-	.release =	null_release,
-	.report_zones =	null_zone_report,
+static const struct block_device_operations null_ops = {
+	.owner		= THIS_MODULE,
+	.report_zones	= null_zone_report,
 };
 
 static void null_init_queue(struct nullb *nullb, struct nullb_queue *nq)
@@ -1556,7 +1545,7 @@ static int null_gendisk_register(struct nullb *nullb)
 	disk->flags |= GENHD_FL_EXT_DEVT | GENHD_FL_SUPPRESS_PARTITION_INFO;
 	disk->major		= null_major;
 	disk->first_minor	= nullb->index;
-	disk->fops		= &null_fops;
+	disk->fops		= &null_ops;
 	disk->private_data	= nullb;
 	disk->queue		= nullb->q;
 	strncpy(disk->disk_name, nullb->disk_name, DISK_NAME_LEN);
-- 
2.23.0


  parent reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-11  2:39 [PATCH v2 0/9] Zoned block device enhancements and zone report rework Damien Le Moal
2019-11-11  2:39 ` [PATCH v2 1/9] block: Enhance blk_revalidate_disk_zones() Damien Le Moal
2019-11-11  2:39 ` [PATCH v2 2/9] block: cleanup the !zoned case in blk_revalidate_disk_zones Damien Le Moal
2019-11-11  2:39 ` [PATCH v2 3/9] block: Simplify report zones execution Damien Le Moal
2019-11-11  2:39 ` [PATCH v2 4/9] block: Remove partition support for zoned block devices Damien Le Moal
2019-11-11  6:55   ` Hannes Reinecke
2019-11-11  2:39 ` Damien Le Moal [this message]
2019-11-11  2:39 ` [PATCH v2 6/9] null_blk: clean up report zones Damien Le Moal
2019-11-11  2:39 ` [PATCH v2 7/9] null_blk: Add zone_nr_conv to features Damien Le Moal
2019-11-11  2:39 ` [PATCH v2 8/9] scsi: sd_zbc: Cleanup sd_zbc_alloc_report_buffer() Damien Le Moal
2019-11-11  6:56   ` Hannes Reinecke
2019-11-11 10:22   ` Christoph Hellwig
2019-11-13  1:46   ` Martin K. Petersen
2019-11-11  2:39 ` [PATCH v2 9/9] block: rework zone reporting Damien Le Moal
2019-11-13  2:16 ` [PATCH v2 0/9] Zoned block device enhancements and zone report rework Jens Axboe
2019-11-13  2:40   ` Damien Le Moal
2019-11-13  7:06   ` Christoph Hellwig

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