From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 27 Jul 2021 23:23:46 +0000 (-0700)
Subject: xfs: flush data dev on external log write
X-Git-Tag: v5.15~628^2~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b1e27239b9169f07edba0ca0e52805645a1768ba;p=platform%2Fkernel%2Flinux-starfive.git

xfs: flush data dev on external log write

We incorrectly flush the log device instead of the data device when
trying to ensure metadata is correctly on disk before writing the
unmount record.

Fixes: eef983ffeae7 ("xfs: journal IO cache flush reductions")
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 36fa265..96434cc 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -833,7 +833,7 @@ xlog_write_unmount_record(
 	 * stamp the tail LSN into the unmount record.
 	 */
 	if (log->l_targ != log->l_mp->m_ddev_targp)
-		blkdev_issue_flush(log->l_targ->bt_bdev);
+		blkdev_issue_flush(log->l_mp->m_ddev_targp->bt_bdev);
 	return xlog_write(log, &vec, ticket, NULL, NULL, XLOG_UNMOUNT_TRANS);
 }