linux-kernel - [PATCH v5 04/11] loop: Switch to set_capacity_revalidate_and

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Message-Id: <20200513133845.244903-5-maco@android.com>
Date:   Wed, 13 May 2020 15:38:38 +0200
From:   Martijn Coenen <maco@...roid.com>
To:     axboe@...nel.dk, hch@....de, ming.lei@...hat.com
Cc:     narayan@...gle.com, zezeozue@...gle.com, maco@...gle.com,
        kernel-team@...roid.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 v5 04/11] 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.

Reviewed-by: Christoph Hellwig <hch@....de>
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 e69ff3c19eff..d9a756f8abd5 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -240,10 +240,9 @@ 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 void
-- 
2.26.2.645.ge9eca65c58-goog