[PATCH v2] fstests: test xfs_copy V5 XFS without -d option

[Zorro Lang <zlang@redhat.com>]

Before xfsprogs commit a872b62 (xfs_copy: band-aids for CRC
filesystems), xfs_copy requires the "-d" option to copy a V5 XFS,
because it can't rewrite the UUID of V5 XFS properly.

Now xfs_copy already full support to copy a V5 XFS. But for above
old problem, xfstests use below patch to make sure xfs_copy always
use "-d" option to copy a V5 XFS:

  8346e53 common: append -d option to XFS_COPY_PROG when testing v5 xfs

That cause xfstests miss the coverage of copying a V5 XFS without
"-d". For test this feature I did below things:

  1. Change init_rc(), add "-d" to $XFS_COPY_PROG if xfs_copy can't
     copy a V5 XFS properly.
  2. xfs/073 test V4 xfs forcibly by specify "-m crc=0" in case. I
     think it's useless now, so remove it.
  3. remove the xfs_copy "-d" option from xfs/032

Signed-off-by: Zorro Lang <zlang@redhat.com>
---

Hi,

V2 did below things:
1. remove require_xfs_copy() function
2. change the code logic of init_rc function about how to add "-d" to
   $XFS_COPY_PROG
3. remove xfs_copy "-d" option of xfs/032

Thanks,
Zorro

 common/rc     | 12 +++++++++---
 tests/xfs/032 |  2 +-
 tests/xfs/073 |  8 ++------
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/common/rc b/common/rc
index 13afc6a..fce9ce6 100644
--- a/common/rc
+++ b/common/rc
@@ -3790,9 +3790,15 @@ init_rc()
 	xfs_io -c stat $TEST_DIR 2>&1 | grep -q "is not on an XFS filesystem" && \
 	export XFS_IO_PROG="$XFS_IO_PROG -F"
 
-	# xfs_copy doesn't work on v5 xfs yet without -d option
-	if [ "$FSTYP" == "xfs" ] && [[ $MKFS_OPTIONS =~ crc=1 ]]; then
-		export XFS_COPY_PROG="$XFS_COPY_PROG -d"
+
+	if [ "$FSTYP" == "xfs" ]; then
+		touch $tmp.img
+		$MKFS_XFS_PROG $MKFS_OPTIONS -d file,name=$tmp.img,size=512m \
+							>/dev/null 2>/dev/null
+		$XFS_DB_PROG -x -c "uuid generate" $tmp.img \
+			| grep -q "invalid UUID\|supported on V5 fs" \
+			&& export XFS_COPY_PROG="$XFS_COPY_PROG -d"
+		rm -f $tmp.img
 	fi
 }
 
diff --git a/tests/xfs/032 b/tests/xfs/032
index 6216379..0e41db8 100755
--- a/tests/xfs/032
+++ b/tests/xfs/032
@@ -65,7 +65,7 @@ while [ $SECTORSIZE -le $PAGESIZE ]; do
 		$FSSTRESS_PROG -n 100 -d $SCRATCH_MNT >> $seqres.full 2>&1
 		_scratch_unmount
 
-		$XFS_COPY_PROG -d $SCRATCH_DEV $IMGFILE >> $seqres.full 2>&1 || \
+		$XFS_COPY_PROG $SCRATCH_DEV $IMGFILE >> $seqres.full 2>&1 || \
 			_fail "Copy failed for Sector size $SECTORSIZE Block size $BLOCKSIZE"
 		# Must use "-n" to get exit code; without it xfs_repair always returns 0
 		$XFS_REPAIR_PROG -n -f $IMGFILE >> $seqres.full 2>&1 || \
diff --git a/tests/xfs/073 b/tests/xfs/073
index 9e29223..7228dd9 100755
--- a/tests/xfs/073
+++ b/tests/xfs/073
@@ -138,7 +138,7 @@ _require_loop
 
 rm -f $seqres.full
 
-_scratch_mkfs_xfs -m crc=0 -dsize=41m,agcount=2 >>$seqres.full 2>&1
+_scratch_mkfs_xfs -dsize=41m,agcount=2 >>$seqres.full 2>&1
 _scratch_mount 2>/dev/null || _fail "initial scratch mount failed"
 
 echo
@@ -158,11 +158,7 @@ _verify_copy $imgs.image $SCRATCH_DEV $SCRATCH_MNT
 
 echo 
 echo === copying scratch device to single target, large ro device
-mkfs_crc_opts="-m crc=0"
-if [ -n "$XFS_MKFS_HAS_NO_META_SUPPORT" ]; then
-	mkfs_crc_opts=""
-fi
-${MKFS_XFS_PROG} $mkfs_crc_opts -dfile,name=$imgs.source,size=100g \
+${MKFS_XFS_PROG} -dfile,name=$imgs.source,size=100g \
 	| _filter_mkfs 2>/dev/null
 rmdir $imgs.source_dir 2>/dev/null
 mkdir $imgs.source_dir
-- 
2.7.4