xen-blkback: use sync_blockdev

Use sync_blockdev instead of opencoding it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20211019062530.2174626-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 33eba3df4dd9af6f545856326a46378178c0db27..914587aabca0cd210eca2856d69a5204aa0005b3 100644 (file)
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -98,7 +98,7 @@ static void xen_update_blkif_status(struct xen_blkif *blkif)
                return;
        }
 
-       err = filemap_write_and_wait(blkif->vbd.bdev->bd_inode->i_mapping);
+       err = sync_blockdev(blkif->vbd.bdev);
        if (err) {
                xenbus_dev_error(blkif->be->dev, err, "block flush");
                return;