linux-kernel - [RFC PATCH 05/18] drbd: use init disk helper

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Message-ID: <20221005050027.39591-6-kch@nvidia.com>
Date:   Tue, 4 Oct 2022 22:00:14 -0700
From:   Chaitanya Kulkarni <kch@...dia.com>
To:     <ogeert@...ux-m68k.org>, <linux-block@...r.kernel.org>,
        <linux-m68k@...ts.linux-m68k.org>, <linux-kernel@...r.kernel.org>,
        <drbd-dev@...ts.linbit.com>, <nbd@...er.debian.org>,
        <linux-mtd@...ts.infradead.org>
CC:     <axboe@...nel.dk>, <philipp.reisner@...bit.com>,
        <lars.ellenberg@...bit.com>, <christoph.boehmwalder@...bit.com>,
        <efremov@...ux.com>, <josef@...icpanda.com>, <tim@...erelk.net>,
        <haris.iqbal@...os.com>, <jinpu.wang@...os.com>, <richard@....at>,
        <miquel.raynal@...tlin.com>, <vigneshr@...com>, <kch@...dia.com>,
        <mcgrof@...nel.org>, <hare@...e.de>,
        <damien.lemoal@...nsource.wdc.com>, <johannes.thumshirn@....com>,
        <bvanassche@....org>, <ming.lei@...hat.com>,
        <vincent.fu@...sung.com>, <shinichiro.kawasaki@....com>
Subject: [RFC PATCH 05/18] drbd: use init disk helper

Add and use the helper to initialize the common fields of struct gendisk
such as major, first_minor, minors, disk_name, private_data, and ops.
This initialization is spread all over the block drivers. This avoids
code repetation of inialization code of gendisk in current block drivers
and any future ones.

Signed-off-by: Chaitanya Kulkarni <kch@...dia.com>
---
 drivers/block/drbd/drbd_main.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index f3e4db16fd07..58fae122de16 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2706,13 +2706,9 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
 
 	set_disk_ro(disk, true);
 
-	disk->major = DRBD_MAJOR;
-	disk->first_minor = minor;
-	disk->minors = 1;
-	disk->fops = &drbd_ops;
 	disk->flags |= GENHD_FL_NO_PART;
 	sprintf(disk->disk_name, "drbd%d", minor);
-	disk->private_data = device;
+	init_disk(disk, DRBD_MAJOR, minor, 1, 0, device, &drbd_ops);
 
 	blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, disk->queue);
 	blk_queue_write_cache(disk->queue, true, true);
-- 
2.29.0