From 37a5ef84413e040bbcf2784d83e0a0c1ec70c0a5 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 21 Nov 2025 08:10:05 +0100
Subject: [PATCH] generic/484: force I/O to the data device for XFS

Otherwise the error injection to the data device might not work as
expected.  For example in some zoned setups I see the failures in
a slightly different spot than expected without this.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Zorro Lang <zlang@kernel.org>
---
 tests/generic/484 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/generic/484 b/tests/generic/484
index ec50735a..0455efcb 100755
--- a/tests/generic/484
+++ b/tests/generic/484
@@ -42,6 +42,9 @@ _scratch_mkfs > $seqres.full 2>&1
 _dmerror_init
 _dmerror_mount
 
+# ensure we are on the data device, as dm error inject the error there
+[ "$FSTYP" == "xfs" ] && _xfs_force_bdev data $SCRATCH_MNT
+
 # create file
 testfile=$SCRATCH_MNT/syncfs-reports-errors
 touch $testfile
-- 
2.47.3