xfs: add a test to check that data growfs fails with internal rt device

The internal RT device directly follows the data device on the same
block device.  This implies the data device can't be grown, and growfs
should handle this gracefully.

Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/tests/xfs/4204 b/tests/xfs/4204
new file mode 100755 (executable)
index 0000000..0b73cee
--- /dev/null
+++ b/tests/xfs/4204
@@ -0,0 +1,33 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2024 Christoph Hellwig.
+#
+# FS QA Test No. 4204
+#
+# Check that trying to grow a data device followed by the internal RT device
+# fails gracefully with EINVAL.
+#
+. ./common/preamble
+_begin_fstest quick auto growfs ioctl zone
+
+_cleanup()
+{
+       cd /
+       _scratch_unmount
+}
+
+# Import common functions.
+. ./common/filter
+
+_require_scratch
+_require_zoned_device $SCRATCH_DEV
+
+echo "Creating file system"
+_scratch_mkfs_xfs >>$seqres.full 2>&1
+_scratch_mount
+
+echo "Trying to grow file system (should fail)"
+$XFS_GROWFS_PROG -d $SCRATCH_MNT >>$seqres.full 2>&1
+
+status=0
+exit

diff --git a/tests/xfs/4204.out b/tests/xfs/4204.out
new file mode 100644 (file)
index 0000000..b3593cf
--- /dev/null
+++ b/tests/xfs/4204.out
@@ -0,0 +1,3 @@
+QA output created by 4204
+Creating file system
+Trying to grow file system (should fail)