linux-kernel - [PATCH v4 03/10] loop: Switch to set_capacity_revalidate_and

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Date:   Wed, 29 Apr 2020 16:03:34 +0200
From:   Martijn Coenen <maco@...roid.com>
To:     axboe@...nel.dk, hch@....de, ming.lei@...hat.com
Cc:     narayan@...gle.com, zezeozue@...gle.com, kernel-team@...roid.com,
        maco@...gle.com, bvanassche@....org, Chaitanya.Kulkarni@....com,
        jaegeuk@...nel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, Martijn Coenen <maco@...roid.com>
Subject: [PATCH v4 03/10] loop: Switch to set_capacity_revalidate_and_notify()

This was recently added to block/genhd.c, and takes care of both
updating the capacity and notifying userspace of the new size.

Signed-off-by: Martijn Coenen <maco@...roid.com>
---
 drivers/block/loop.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 6643e48ad71c..8f3194c2b8aa 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -253,10 +253,9 @@ static void loop_set_size(struct loop_device *lo, loff_t size)
 {
 	struct block_device *bdev = lo->lo_device;
 
-	set_capacity(lo->lo_disk, size);
 	bd_set_size(bdev, size << SECTOR_SHIFT);
-	/* let user-space know about the new size */
-	kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, KOBJ_CHANGE);
+
+	set_capacity_revalidate_and_notify(lo->lo_disk, size, false);
 }
 
 static int
-- 
2.26.2.303.gf8c07b1a785-goog