From 00c5495c54f785beb0f6a34f7a3674d3ea0997d5 Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@redhat.com>
Date: Mon, 25 Oct 2021 10:54:26 +0800
Subject: [PATCH] zram: replace fsync_bdev with sync_blockdev
Git-commit: 00c5495c54f785beb0f6a34f7a3674d3ea0997d5
Reviewed-by: Luis Chamberlain <mcgrof@suse.com>
Patch-mainline: v5.16-rc1
References: bsc#1170269

When calling fsync_bdev(), zram driver guarantees that the bdev won't be
opened by anyone, then there can't be one active fs/superblock over the
zram bdev, so replace fsync_bdev with sync_blockdev.

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Link: https://lore.kernel.org/r/20211025025426.2815424-5-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/block/zram/zram_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index dcde8d8..862e603 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1782,7 +1782,7 @@ static ssize_t reset_store(struct device *dev,
 	mutex_unlock(&bdev->bd_mutex);
 
 	/* Make sure all the pending I/O are finished */
-	fsync_bdev(bdev);
+	sync_blockdev(bdev);
 	zram_reset_device(zram);
 	revalidate_disk_size(zram->disk, true);
 	bdput(bdev);
@@ -1994,7 +1994,7 @@ static int zram_remove(struct zram *zram)
 		;
 	} else {
 	/* Make sure all the pending I/O are finished */
-		fsync_bdev(bdev);
+		sync_blockdev(bdev);
 		zram_reset_device(zram);
 		bdput(bdev);
 	}