[PATCH] generic/805: fix for external RT devices

[Christoph Hellwig <hch@lst.de>]

use _mkfs_dev on the dm device instead of _scratch_mkfs_sized, otherwise
the file system could be created with an external RT device, and will
then fail to mount without it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 tests/generic/805 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/generic/805 b/tests/generic/805
index ae498f5c6698..401829c4c6fc 100755
--- a/tests/generic/805
+++ b/tests/generic/805
@@ -31,7 +31,7 @@ _cleanup()
 	rm -f $tmp.*
 }
 
-_require_scratch
+_require_scratch_nocheck
 _require_dm_target linear
 _require_freeze
 
@@ -39,13 +39,13 @@ echo "Silence is golden"
 
 size=$((256 * 1024 * 1024))
 size_in_sector=$((size / 512))
-_scratch_mkfs_sized $size >> $seqres.full 2>&1
 
 node=$seq-test
 lvdev=/dev/mapper/$node
 table="0 $size_in_sector linear $SCRATCH_DEV 0"
 _dmsetup_create $node --table "$table" || \
 	_fail "failed to create dm device"
+_mkfs_dev $lvdev >> $seqres.full 2>&1
 
 _mount $lvdev $SCRATCH_MNT || _fail "failed to mount dm device"
 
-- 
2.53.0