[PATCH 5/4] xfs/076: only create files on the data device

["Darrick J. Wong" <djwong@kernel.org>]

From: Darrick J. Wong <djwong@kernel.org>

This test checks that filesystems with sparse inode support can continue
to allocate inodes when free space gets fragmented.  Inodes only exist
on the data device, so we need to ensure that realtime is not enabled on
the filesystem so that the rt metadata doesn't mess with the inode usage
percentage and cause a test failure.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 tests/xfs/076 |   13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/tests/xfs/076 b/tests/xfs/076
index eac7410e..8eef1367 100755
--- a/tests/xfs/076
+++ b/tests/xfs/076
@@ -55,12 +55,21 @@ _alloc_inodes()
 
 # real QA test starts here
 
-_require_scratch
+if [ -n "$SCRATCH_RTDEV" ]; then
+	# ./check won't know we unset SCRATCH_RTDEV
+	_require_scratch_nocheck
+else
+	_require_scratch
+fi
 _require_xfs_io_command "falloc"
 _require_xfs_io_command "fpunch"
 _require_xfs_sparse_inodes
 
-_scratch_mkfs "-d size=50m -m crc=1 -i sparse" |
+# Disable the scratch rt device to avoid test failures relating to the rt
+# bitmap consuming all the free space in our small data device.
+unset SCRATCH_RTDEV
+
+_scratch_mkfs "-d size=50m -m crc=1 -i sparse" | tee -a $seqres.full |
 	_filter_mkfs > /dev/null 2> $tmp.mkfs
 . $tmp.mkfs	# for isize