linux-kernel - [PATCH V3 4/4] zram: replace fsync_bdev with sync

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Date:   Mon, 25 Oct 2021 10:54:26 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     linux-block@...r.kernel.org, Luis Chamberlain <mcgrof@...nel.org>,
        Minchan Kim <minchan@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, Ming Lei <ming.lei@...hat.com>
Subject: [PATCH V3 4/4] zram: replace fsync_bdev with sync_blockdev

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@...nel.org>
Signed-off-by: Ming Lei <ming.lei@...hat.com>
---
 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 dba93b8ce511..9609e2b31d5a 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1790,7 +1790,7 @@ static ssize_t reset_store(struct device *dev,
 	mutex_unlock(&bdev->bd_disk->open_mutex);
 
 	/* Make sure all the pending I/O are finished */
-	fsync_bdev(bdev);
+	sync_blockdev(bdev);
 	zram_reset_device(zram);
 
 	mutex_lock(&bdev->bd_disk->open_mutex);
@@ -1991,7 +1991,7 @@ 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);
 	}
 
-- 
2.31.1