linux-kernel - [PATCH v2 2/6] block: move disk announce work from register

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Date:   Wed, 14 Jul 2021 21:55:27 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     axboe@...nel.dk
Cc:     hare@...e.de, bvanassche@....org, ming.lei@...hat.com,
        hch@...radead.org, jack@...e.cz, osandov@...com,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH v2 2/6] block: move disk announce work from register_disk() to a helper

This moves quite a bit of code which does one thing into a helper.
We currently do not check for errors but we may decide that might
be desirable later.

This also makes the code easier to read.

This change has no functional changes.

Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
---
 block/genhd.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/block/genhd.c b/block/genhd.c
index 4dd6db3618f2..520e23b25ed5 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -390,6 +390,15 @@ static void disk_scan_partitions(struct gendisk *disk)
 		blkdev_put(bdev, FMODE_READ);
 }
 
+static void disk_announce(struct gendisk *disk)
+{
+	struct device *ddev = disk_to_dev(disk);
+
+	/* announce the disk and partitions after all partitions are created */
+	dev_set_uevent_suppress(ddev, 0);
+	disk_uevent(disk, KOBJ_ADD);
+}
+
 static void register_disk(struct device *parent, struct gendisk *disk,
 			  const struct attribute_group **groups)
 {
@@ -433,10 +442,7 @@ static void register_disk(struct device *parent, struct gendisk *disk,
 		return;
 
 	disk_scan_partitions(disk);
-
-	/* announce the disk and partitions after all partitions are created */
-	dev_set_uevent_suppress(ddev, 0);
-	disk_uevent(disk, KOBJ_ADD);
+	disk_announce(disk);
 
 	if (disk->queue->backing_dev_info->dev) {
 		err = sysfs_create_link(&ddev->kobj,
-- 
2.27.0