diff --git a/common/attr b/common/attr
index 35682d7c..964c790a 100644
--- a/common/attr
+++ b/common/attr
@@ -13,7 +13,7 @@ _acl_get_max()
 		# CRC format filesystems have much larger ACL counts. The actual
 		# number is into the thousands, but testing that meany takes too
 		# long, so just test well past the old limit of 25.
-		$XFS_INFO_PROG $TEST_DIR | _filter_mkfs > /dev/null 2> $tmp.info
+		$XFS_INFO_PROG $TEST_DIR | _xfs_filter_mkfs > /dev/null 2> $tmp.info
 		. $tmp.info
 		rm $tmp.info
 		if [ $_fs_has_crcs -eq 0 ]; then
diff --git a/common/filter b/common/filter
index c3db7a56..24fd0650 100644
--- a/common/filter
+++ b/common/filter
@@ -117,7 +117,7 @@ _filter_date()
 
 # prints filtered output on stdout, values (use eval) on stderr
 # Non XFS filesystems always return a 4k block size and a 256 byte inode.
-_filter_mkfs()
+_xfs_filter_mkfs()
 {
     case $FSTYP in
     xfs)
diff --git a/common/xfs b/common/xfs
index 713e9fe7..3435c706 100644
--- a/common/xfs
+++ b/common/xfs
@@ -832,7 +832,7 @@ _require_scratch_xfs_shrink()
 	_require_scratch
 	_require_command "$XFS_GROWFS_PROG" xfs_growfs
 
-	_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
+	_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 	. $tmp.mkfs
 	_scratch_mount
 	# here just to check if kernel supports, no need do more extra work
diff --git a/tests/generic/204 b/tests/generic/204
index b5deb443..40d524d1 100755
--- a/tests/generic/204
+++ b/tests/generic/204
@@ -25,7 +25,7 @@ _supported_fs generic
 _require_scratch
 
 # get the block size first
-_scratch_mkfs 2> /dev/null | _filter_mkfs 2> $tmp.mkfs > /dev/null
+_scratch_mkfs 2> /dev/null | _xfs_filter_mkfs 2> $tmp.mkfs > /dev/null
 . $tmp.mkfs
 
 # For xfs, we need to handle the different default log sizes that different
@@ -37,7 +37,7 @@ _scratch_mkfs 2> /dev/null | _filter_mkfs 2> $tmp.mkfs > /dev/null
 SIZE=`expr 115 \* 1024 \* 1024`
 _scratch_mkfs_sized $SIZE $dbsize 2> /dev/null > $tmp.mkfs.raw \
 	|| _fail "mkfs failed"
-cat $tmp.mkfs.raw | _filter_mkfs 2> $tmp.mkfs > /dev/null
+cat $tmp.mkfs.raw | _xfs_filter_mkfs 2> $tmp.mkfs > /dev/null
 _scratch_mount
 
 # Source $tmp.mkfs to get geometry
diff --git a/tests/xfs/004 b/tests/xfs/004
index f18316b3..5e83fff9 100755
--- a/tests/xfs/004
+++ b/tests/xfs/004
@@ -21,7 +21,7 @@ _cleanup()
 _populate_scratch()
 {
 	echo "=== mkfs output ===" >>$seqres.full
-	_scratch_mkfs_xfs | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs
+	_scratch_mkfs_xfs | tee -a $seqres.full | _xfs_filter_mkfs 2>$tmp.mkfs
 	. $tmp.mkfs
 	_scratch_mount
 	# This test looks at specific behaviors of the xfs_db freesp command,
diff --git a/tests/xfs/007 b/tests/xfs/007
index 4f864100..33a857e8 100755
--- a/tests/xfs/007
+++ b/tests/xfs/007
@@ -19,7 +19,7 @@ _supported_fs xfs
 _require_scratch
 _require_xfs_quota
 
-_scratch_mkfs_xfs | _filter_mkfs > /dev/null 2> $tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs > /dev/null 2> $tmp.mkfs
 . $tmp.mkfs
 
 do_test()
diff --git a/tests/xfs/010 b/tests/xfs/010
index 16c08b85..badac7c0 100755
--- a/tests/xfs/010
+++ b/tests/xfs/010
@@ -87,7 +87,7 @@ _require_scratch
 _require_xfs_mkfs_finobt
 _require_xfs_finobt
 
-_scratch_mkfs_xfs "-m crc=1,finobt=1 -d agcount=2" | _filter_mkfs 2>$seqres.full
+_scratch_mkfs_xfs "-m crc=1,finobt=1 -d agcount=2" | _xfs_filter_mkfs 2>$seqres.full
 
 # sparsely populate the fs such that we create records with free inodes
 _scratch_mount
diff --git a/tests/xfs/013 b/tests/xfs/013
index 2d005753..dc39ffd6 100755
--- a/tests/xfs/013
+++ b/tests/xfs/013
@@ -89,7 +89,7 @@ _require_xfs_finobt
 _require_command "$KILLALL_PROG" killall
 
 _scratch_mkfs_xfs "-m crc=1,finobt=1 -d agcount=2" | \
-	_filter_mkfs 2>> $seqres.full
+	_xfs_filter_mkfs 2>> $seqres.full
 _scratch_mount
 
 COUNT=20000	# number of files per directory
diff --git a/tests/xfs/015 b/tests/xfs/015
index 2bb7b8d5..72842b38 100755
--- a/tests/xfs/015
+++ b/tests/xfs/015
@@ -44,7 +44,7 @@ _require_fs_space $SCRATCH_MNT 131072
 _scratch_unmount
 
 _scratch_mkfs_sized $((32 * 1024 * 1024)) > $tmp.mkfs.raw || _fail "mkfs failed"
-cat $tmp.mkfs.raw | _filter_mkfs >$seqres.full 2>$tmp.mkfs
+cat $tmp.mkfs.raw | _xfs_filter_mkfs >$seqres.full 2>$tmp.mkfs
 # get original data blocks number and agcount
 . $tmp.mkfs
 _scratch_mount
diff --git a/tests/xfs/016 b/tests/xfs/016
index 6337bb1f..e8094476 100755
--- a/tests/xfs/016
+++ b/tests/xfs/016
@@ -66,7 +66,7 @@ _init()
     _scratch_mkfs_xfs $force_opts >$tmp.mkfs0 2>&1
     [ $? -ne 0 ] && \
         _notrun "Cannot mkfs for this test using MKFS_OPTIONS specified"
-    _filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
+    _xfs_filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
     . $tmp.mkfs
     [ $logsunit -ne 0 ] && \
         _notrun "Cannot run this test using log MKFS_OPTIONS specified"
diff --git a/tests/xfs/029 b/tests/xfs/029
index 6e8aa4db..a3fb9cfc 100755
--- a/tests/xfs/029
+++ b/tests/xfs/029
@@ -36,7 +36,7 @@ _supported_fs xfs
 _require_scratch
 
 echo
-_scratch_mkfs_xfs | _filter_mkfs 2>/dev/null
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>/dev/null
 
 echo
 _scratch_xfs_logprint | filter_logprint
diff --git a/tests/xfs/030 b/tests/xfs/030
index 201a9015..62066d06 100755
--- a/tests/xfs/030
+++ b/tests/xfs/030
@@ -83,7 +83,7 @@ $here/src/devzero -v -1 -n "$clear" $SCRATCH_DEV >/dev/null
 
 # now kick off the real repair test...
 #
-_scratch_mkfs_xfs $DSIZE | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs $DSIZE | _xfs_filter_mkfs 2>$tmp.mkfs
 . $tmp.mkfs
 _check_ag 0
 _check_ag -1
diff --git a/tests/xfs/031 b/tests/xfs/031
index 6e3813da..e6bbc0d4 100755
--- a/tests/xfs/031
+++ b/tests/xfs/031
@@ -82,20 +82,20 @@ echo "$MKFS_OPTIONS" | grep -q "rtinherit" && \
 _create_proto 0
 echo "=== one entry (shortform)"
 _scratch_mkfs_xfs -p $tmp.proto >$tmp.mkfs0 2>&1
-_filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
+_xfs_filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
 . $tmp.mkfs
 _check_repair
 
 # block-form root directory & repeat
 _create_proto 20
 echo "=== twenty entries (block form)"
-_scratch_mkfs_xfs -p $tmp.proto | _filter_mkfs >/dev/null 2>&1
+_scratch_mkfs_xfs -p $tmp.proto | _xfs_filter_mkfs >/dev/null 2>&1
 _check_repair
 
 # leaf-form root directory & repeat
 _create_proto 1000
 echo "=== thousand entries (leaf form)"
-_scratch_mkfs_xfs -p $tmp.proto | _filter_mkfs >/dev/null 2>&1
+_scratch_mkfs_xfs -p $tmp.proto | _xfs_filter_mkfs >/dev/null 2>&1
 _check_repair
 
 # success, all done
diff --git a/tests/xfs/033 b/tests/xfs/033
index d47da0d6..61ae4004 100755
--- a/tests/xfs/033
+++ b/tests/xfs/033
@@ -55,10 +55,10 @@ _require_scratch
 _require_no_large_scratch_dev
 
 # devzero blows away 512byte blocks, so make 512byte inodes (at least)
-_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 if [ $isize -lt 512 ]; then
-	_scratch_mkfs_xfs -isize=512 | _filter_mkfs 2>$tmp.mkfs >/dev/null
+	_scratch_mkfs_xfs -isize=512 | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 	. $tmp.mkfs
 fi
 
diff --git a/tests/xfs/041 b/tests/xfs/041
index 05de5578..135ed410 100755
--- a/tests/xfs/041
+++ b/tests/xfs/041
@@ -41,7 +41,7 @@ _do_die_on_error=message_only
 agsize=32
 echo -n "Make $agsize megabyte filesystem on SCRATCH_DEV and mount... "
 _scratch_mkfs_xfs -dsize=${agsize}m,agcount=1 2>&1 >/dev/null || _fail "mkfs failed"
-bsize=`_scratch_mkfs_xfs -dsize=${agsize}m,agcount=1 2>&1 | _filter_mkfs 2>&1 \
+bsize=`_scratch_mkfs_xfs -dsize=${agsize}m,agcount=1 2>&1 | _xfs_filter_mkfs 2>&1 \
 		| perl -ne 'if (/dbsize=(\d+)/) {print $1;}'`
 onemeginblocks=`expr 1048576 / $bsize`
 _scratch_mount
diff --git a/tests/xfs/044 b/tests/xfs/044
index e66c0cb3..8ffd2af4 100755
--- a/tests/xfs/044
+++ b/tests/xfs/044
@@ -79,7 +79,7 @@ lsize=16777216
 _scratch_mkfs_xfs -lsize=$lsize,version=$lversion >$tmp.mkfs0 2>&1
 [ $? -ne 0 ] && \
     _notrun "Cannot mkfs for this test using MKFS_OPTIONS specified"
-_filter_mkfs <$tmp.mkfs0 2>$tmp.mkfs1
+_xfs_filter_mkfs <$tmp.mkfs0 2>$tmp.mkfs1
 . $tmp.mkfs1
 [ $lversion -ne 1 ] && \
     _notrun "Cannot run this test yet using MKFS_OPTIONS specified"
diff --git a/tests/xfs/050 b/tests/xfs/050
index 1847611b..3556c85e 100755
--- a/tests/xfs/050
+++ b/tests/xfs/050
@@ -65,7 +65,7 @@ _filter_and_check_blks()
 
 _exercise()
 {
-	_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+	_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 	cat $tmp.mkfs >>$seqres.full
 
 	# keep the blocksize and data size for dd later
diff --git a/tests/xfs/052 b/tests/xfs/052
index 75761022..e4c7ee6c 100755
--- a/tests/xfs/052
+++ b/tests/xfs/052
@@ -34,7 +34,7 @@ _require_nobody
 # setup a default run
 _qmount_option uquota
 
-_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 cat $tmp.mkfs >>$seqres.full
 chmod a+w $seqres.full     # arbitrary users will write here
 
diff --git a/tests/xfs/058 b/tests/xfs/058
index 8751a7ac..0f87ec3c 100755
--- a/tests/xfs/058
+++ b/tests/xfs/058
@@ -22,7 +22,7 @@ _require_xfs_db_command "fuzz"
 rm -f "$seqres.full"
 
 echo "Format"
-_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >> "$seqres.full"
+_scratch_mkfs | _xfs_filter_mkfs 2>$tmp.mkfs >> "$seqres.full"
 source $tmp.mkfs
 
 do_xfs_db()
diff --git a/tests/xfs/067 b/tests/xfs/067
index 3dc381bb..c733d761 100755
--- a/tests/xfs/067
+++ b/tests/xfs/067
@@ -22,7 +22,7 @@ _require_scratch
 
 # set up fs for 1K inodes
 isize=0
-_scratch_mkfs_xfs | _filter_mkfs >$seqres.full 2>$tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs >$seqres.full 2>$tmp.mkfs
 [ $? -eq 0 ] && source $tmp.mkfs
 if [ "$isize" -lt 1024 ]; then
     _scratch_mkfs_xfs -i size=1024 >>$seqres.full \
diff --git a/tests/xfs/070 b/tests/xfs/070
index 43ca7f84..9db518d7 100755
--- a/tests/xfs/070
+++ b/tests/xfs/070
@@ -76,7 +76,7 @@ _supported_fs xfs
 _require_scratch_nocheck
 _require_command "$KILLALL_PROG" killall
 
-_scratch_mkfs | _filter_mkfs > /dev/null 2> $tmp.mkfs
+_scratch_mkfs | _xfs_filter_mkfs > /dev/null 2> $tmp.mkfs
 test "${PIPESTATUS[0]}" -eq 0 || _fail "mkfs failed"
 
 . $tmp.mkfs # import agcount
diff --git a/tests/xfs/071 b/tests/xfs/071
index 8373878a..9b425d9f 100755
--- a/tests/xfs/071
+++ b/tests/xfs/071
@@ -81,7 +81,7 @@ _supported_fs xfs
 [ -n "$XFS_IO_PROG" ] || _notrun "xfs_io executable not found"
 
 _require_scratch
-_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 . $tmp.mkfs
 echo
 _scratch_mount
diff --git a/tests/xfs/073 b/tests/xfs/073
index c7616b9e..d1b97313 100755
--- a/tests/xfs/073
+++ b/tests/xfs/073
@@ -131,7 +131,7 @@ _verify_copy $imgs.image $SCRATCH_DEV $SCRATCH_MNT
 echo 
 echo === copying scratch device to single target, large ro device
 ${MKFS_XFS_PROG} -dfile,name=$imgs.source,size=100g \
-	| _filter_mkfs 2>/dev/null
+	| _xfs_filter_mkfs 2>/dev/null
 rmdir $imgs.source_dir 2>/dev/null
 mkdir $imgs.source_dir
 
diff --git a/tests/xfs/076 b/tests/xfs/076
index eac7410e..3cdde79e 100755
--- a/tests/xfs/076
+++ b/tests/xfs/076
@@ -61,7 +61,7 @@ _require_xfs_io_command "fpunch"
 _require_xfs_sparse_inodes
 
 _scratch_mkfs "-d size=50m -m crc=1 -i sparse" |
-	_filter_mkfs > /dev/null 2> $tmp.mkfs
+	_xfs_filter_mkfs > /dev/null 2> $tmp.mkfs
 . $tmp.mkfs	# for isize
 
 _scratch_mount
diff --git a/tests/xfs/078 b/tests/xfs/078
index 1f475c96..a3b75fa6 100755
--- a/tests/xfs/078
+++ b/tests/xfs/078
@@ -74,7 +74,7 @@ _grow_loop()
 		mkfs_crc_opts="-m crc=0"
 	fi
 	$MKFS_XFS_PROG $mkfs_crc_opts -b size=$bsize $dparam $LOOP_DEV \
-		| _filter_mkfs 2>/dev/null
+		| _xfs_filter_mkfs 2>/dev/null
 
 	echo "*** extend loop file"
 	_destroy_loop_device $LOOP_DEV
diff --git a/tests/xfs/092 b/tests/xfs/092
index 015149e2..7e7b31fc 100755
--- a/tests/xfs/092
+++ b/tests/xfs/092
@@ -20,7 +20,7 @@ _require_scratch
 _require_no_large_scratch_dev
 
 MOUNT_OPTIONS="$MOUNT_OPTIONS -o inode64"
-_scratch_mkfs_xfs | _filter_mkfs 2>/dev/null
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>/dev/null
 echo Silence is golden
 
 _try_scratch_mount
diff --git a/tests/xfs/104 b/tests/xfs/104
index d16f46d8..c21bd4e0 100755
--- a/tests/xfs/104
+++ b/tests/xfs/104
@@ -15,7 +15,7 @@ _begin_fstest growfs ioctl prealloc auto stress
 _create_scratch()
 {
 	echo "*** mkfs"
-	_scratch_mkfs_xfs $@ | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs
+	_scratch_mkfs_xfs $@ | tee -a $seqres.full | _xfs_filter_mkfs 2>$tmp.mkfs
 	. $tmp.mkfs
 
 	echo "*** mount"
@@ -50,7 +50,7 @@ _supported_fs xfs
 _require_scratch
 _require_xfs_io_command "falloc"
 
-_scratch_mkfs_xfs | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs | tee -a $seqres.full | _xfs_filter_mkfs 2>$tmp.mkfs
 . $tmp.mkfs	# extract blocksize and data size for scratch device
 
 endsize=`expr 550 \* 1048576`	# stop after growing this big
@@ -89,7 +89,7 @@ while [ $size -le $endsize ]; do
 	echo "*** growing filesystem"
 	echo "*** growing to a ${sizeb} block filesystem" >> $seqres.full
 	xfs_growfs -D ${sizeb} $SCRATCH_MNT \
-		| tee -a $seqres.full | _filter_mkfs 2>$tmp.growfs
+		| tee -a $seqres.full | _xfs_filter_mkfs 2>$tmp.growfs
 	. $tmp.growfs
 	[ `expr $size % $modsize` -eq 0 ] && wait	# every 4th iteration
 	echo AGCOUNT=$agcount | tee -a $seqres.full
diff --git a/tests/xfs/108 b/tests/xfs/108
index 46070005..985b989b 100755
--- a/tests/xfs/108
+++ b/tests/xfs/108
@@ -62,7 +62,7 @@ _require_prjquota $SCRATCH_DEV
 # real QA test starts here
 rm -f $tmp.projects $seqres.full
 _scratch_unmount 2>/dev/null
-_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 cat $tmp.mkfs >>$seqres.full
 _scratch_mount
 
diff --git a/tests/xfs/109 b/tests/xfs/109
index 6cb6917a..e29d4795 100755
--- a/tests/xfs/109
+++ b/tests/xfs/109
@@ -78,7 +78,7 @@ if [ -n "$FASTSTART" -a -f $SCRATCH_MNT/f0 ]; then
 fi
 _scratch_unmount
 
-_scratch_mkfs_xfs -dsize=160m,agcount=4 $faststart | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs -dsize=160m,agcount=4 $faststart | _xfs_filter_mkfs 2>$tmp.mkfs
 cat $tmp.mkfs >>$seqres.full
 _scratch_mount
 
diff --git a/tests/xfs/110 b/tests/xfs/110
index 596057ef..734d2869 100755
--- a/tests/xfs/110
+++ b/tests/xfs/110
@@ -18,7 +18,7 @@ _require_scratch
 
 # real QA test starts here
 _scratch_unmount 2>/dev/null
-_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 
 STR1=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
 STR2=BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
diff --git a/tests/xfs/111 b/tests/xfs/111
index ede28aee..ed5a54c5 100755
--- a/tests/xfs/111
+++ b/tests/xfs/111
@@ -22,7 +22,7 @@ _require_scratch
 _scratch_unmount 2>/dev/null
 MKFS_OPTIONS="-bsize=4096"
 MOUNT_OPTIONS="-o noatime"
-_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 _scratch_mount
 
 echo Create some files
diff --git a/tests/xfs/144 b/tests/xfs/144
index 5abec9ae..d46eb1e2 100755
--- a/tests/xfs/144
+++ b/tests/xfs/144
@@ -24,7 +24,7 @@ _require_xfs_quota
 _require_scratch
 
 exercise() {
-	_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+	_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 	cat $tmp.mkfs >>$seqres.full
 
 	# keep the blocksize and data size for dd later
diff --git a/tests/xfs/153 b/tests/xfs/153
index 37303701..d410cbed 100755
--- a/tests/xfs/153
+++ b/tests/xfs/153
@@ -70,7 +70,7 @@ _filter_and_check_blks()
 
 run_tests()
 {
-	_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+	_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 	cat $tmp.mkfs >>$seqres.full
 
 	# keep the blocksize and data size for dd later
diff --git a/tests/xfs/163 b/tests/xfs/163
index 9f6dbeb8..79f420fa 100755
--- a/tests/xfs/163
+++ b/tests/xfs/163
@@ -24,7 +24,7 @@ test_shrink()
 	_check_scratch_fs
 	_scratch_mount
 
-	$XFS_INFO_PROG $SCRATCH_MNT 2>&1 | _filter_mkfs 2>$tmp.growfs >/dev/null
+	$XFS_INFO_PROG $SCRATCH_MNT 2>&1 | _xfs_filter_mkfs 2>$tmp.growfs >/dev/null
 	. $tmp.growfs
 	[ $ret -eq 0 -a $1 -eq $dblocks ]
 }
@@ -38,7 +38,7 @@ echo "Format and mount"
 # agcount = 1 is forbidden on purpose, and need to ensure shrinking to
 # 2 AGs isn't feasible yet. So agcount = 3 is the minimum number now.
 _scratch_mkfs -dsize="$((512 * 1024 * 1024))" -dagcount=3 2>&1 | \
-	tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs >/dev/null
+	tee -a $seqres.full | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 t_dblocks=$dblocks
 _scratch_mount >> $seqres.full
diff --git a/tests/xfs/168 b/tests/xfs/168
index ffcd0df8..6b3eee30 100755
--- a/tests/xfs/168
+++ b/tests/xfs/168
@@ -19,7 +19,7 @@ _begin_fstest auto growfs shrinkfs ioctl prealloc stress
 create_scratch()
 {
 	_scratch_mkfs_xfs $@ | tee -a $seqres.full | \
-		_filter_mkfs 2>$tmp.mkfs >/dev/null
+		_xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 	. $tmp.mkfs
 
 	_scratch_mount
@@ -48,7 +48,7 @@ _supported_fs xfs
 _require_scratch_xfs_shrink
 _require_xfs_io_command "falloc"
 
-_scratch_mkfs_xfs | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs_xfs | tee -a $seqres.full | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs	# extract blocksize and data size for scratch device
 
 endsize=`expr 125 \* 1048576`	# stop after shrinking this big
@@ -93,7 +93,7 @@ while [ $totalcount -gt 0 ]; do
 		[ $decb -eq 0 ] && break
 
 		# get latest dblocks
-		$XFS_INFO_PROG $SCRATCH_MNT 2>&1 | _filter_mkfs 2>$tmp.growfs >/dev/null
+		$XFS_INFO_PROG $SCRATCH_MNT 2>&1 | _xfs_filter_mkfs 2>$tmp.growfs >/dev/null
 		. $tmp.growfs
 
 		size=`expr $dblocks \* $dbsize`
diff --git a/tests/xfs/176 b/tests/xfs/176
index ba4aae59..57e11fd7 100755
--- a/tests/xfs/176
+++ b/tests/xfs/176
@@ -24,7 +24,7 @@ _require_xfs_io_command "falloc"
 _require_xfs_io_command "fpunch"
 
 _scratch_mkfs "-d size=50m -m crc=1 -i sparse" |
-	_filter_mkfs > /dev/null 2> $tmp.mkfs
+	_xfs_filter_mkfs > /dev/null 2> $tmp.mkfs
 . $tmp.mkfs	# for isize
 cat $tmp.mkfs >> $seqres.full
 
diff --git a/tests/xfs/178 b/tests/xfs/178
index a65197cd..5392b9bb 100755
--- a/tests/xfs/178
+++ b/tests/xfs/178
@@ -45,7 +45,7 @@ _supported_fs xfs
 #             fix filesystem, new mkfs.xfs will be fine.
 
 _require_scratch
-_scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>$tmp.mkfs
 test "${PIPESTATUS[0]}" -eq 0 || _fail "mkfs failed!"
 
 # By executing the followint tmp file, will get on the mkfs options stored in
diff --git a/tests/xfs/186 b/tests/xfs/186
index b54fcf26..8a2a6995 100755
--- a/tests/xfs/186
+++ b/tests/xfs/186
@@ -124,7 +124,7 @@ _require_scratch
 _require_attrs
 _require_attr_v1
 
-_scratch_mkfs -i attr=2,size=512 -l lazy-count=1 | _filter_mkfs \
+_scratch_mkfs -i attr=2,size=512 -l lazy-count=1 | _xfs_filter_mkfs \
 	>>$seqres.full 2>$tmp.mkfs
 # import crc status and attr version
 . $tmp.mkfs
diff --git a/tests/xfs/189 b/tests/xfs/189
index e601881a..437243c7 100755
--- a/tests/xfs/189
+++ b/tests/xfs/189
@@ -231,7 +231,7 @@ _require_noattr2
 unset SCRATCH_RTDEV
 unset SCRATCH_LOGDEV
 
-_scratch_mkfs_xfs | _filter_mkfs 2>/dev/null
+_scratch_mkfs_xfs | _xfs_filter_mkfs 2>/dev/null
 
 _add_scratch_fstab
 _test_remount_rw
diff --git a/tests/xfs/250 b/tests/xfs/250
index 8af32711..573340bb 100755
--- a/tests/xfs/250
+++ b/tests/xfs/250
@@ -54,7 +54,7 @@ _test_loop()
 
 	echo "*** mkfs loop file (size=$size)"
 	$MKFS_XFS_PROG -d $dparam \
-		| _filter_mkfs 2>/dev/null
+		| _xfs_filter_mkfs 2>/dev/null
 
 	echo "*** mount loop filesystem"
 	mount -t xfs -o loop $LOOP_DEV $LOOP_MNT
diff --git a/tests/xfs/259 b/tests/xfs/259
index 88e2f3ee..7c062c7d 100755
--- a/tests/xfs/259
+++ b/tests/xfs/259
@@ -49,7 +49,7 @@ for del in $sizes_to_check; do
 			>/dev/null 2>&1 || echo "dd failed"
 		lofile=$(losetup -f)
 		losetup $lofile "$testfile"
-		$MKFS_XFS_PROG -l size=32m -b size=$bs $lofile |  _filter_mkfs \
+		$MKFS_XFS_PROG -l size=32m -b size=$bs $lofile |  _xfs_filter_mkfs \
 			>/dev/null 2> $tmp.mkfs || echo "mkfs failed!"
 		. $tmp.mkfs
 		sync
diff --git a/tests/xfs/276 b/tests/xfs/276
index 8cc48675..6774b819 100755
--- a/tests/xfs/276
+++ b/tests/xfs/276
@@ -29,7 +29,7 @@ _require_test_program "punch-alternating"
 rm -f "$seqres.full"
 
 echo "Format and mount"
-_scratch_mkfs | _filter_mkfs 2> "$tmp.mkfs" >/dev/null
+_scratch_mkfs | _xfs_filter_mkfs 2> "$tmp.mkfs" >/dev/null
 . $tmp.mkfs
 cat "$tmp.mkfs" > $seqres.full
 _scratch_mount
diff --git a/tests/xfs/279 b/tests/xfs/279
index 835d187f..64563237 100755
--- a/tests/xfs/279
+++ b/tests/xfs/279
@@ -44,7 +44,7 @@ _check_mkfs()
 		return
 	fi
 	echo "Passed."
-	cat $tmp.mkfs.full | _filter_mkfs >> $seqres.full 2>$tmp.mkfs
+	cat $tmp.mkfs.full | _xfs_filter_mkfs >> $seqres.full 2>$tmp.mkfs
 	. $tmp.mkfs
 	echo "Got sector size: $sectsz"
 	device=`echo $@ | awk '{print $NF}'`
diff --git a/tests/xfs/288 b/tests/xfs/288
index e3d230e9..ec12d0d1 100755
--- a/tests/xfs/288
+++ b/tests/xfs/288
@@ -20,7 +20,7 @@ _require_scratch
 _require_attrs
 
 # get block size ($dbsize) from the mkfs output
-_scratch_mkfs_xfs 2>/dev/null | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs_xfs 2>/dev/null | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 
 _scratch_mount
diff --git a/tests/xfs/292 b/tests/xfs/292
index cf501571..930504ca 100755
--- a/tests/xfs/292
+++ b/tests/xfs/292
@@ -25,12 +25,12 @@ rm -f $fsfile
 $XFS_IO_PROG -f -c "truncate 256g" $fsfile
 
 echo "mkfs.xfs without geometry"
-mkfs.xfs -f $fsfile | _filter_mkfs 2> $tmp.mkfs > /dev/null
+mkfs.xfs -f $fsfile | _xfs_filter_mkfs 2> $tmp.mkfs > /dev/null
 grep -E 'ddev|agcount|agsize' $tmp.mkfs | \
     sed -e "s:$fsfile:FILENAME:g"
 
 echo "mkfs.xfs with cmdline geometry"
-mkfs.xfs -f -d su=16k,sw=5 $fsfile | _filter_mkfs 2> $tmp.mkfs > /dev/null
+mkfs.xfs -f -d su=16k,sw=5 $fsfile | _xfs_filter_mkfs 2> $tmp.mkfs > /dev/null
 grep -E 'ddev|agcount|agsize' $tmp.mkfs | \
     sed -e "s:$fsfile:FILENAME:g"
 
diff --git a/tests/xfs/299 b/tests/xfs/299
index a3077b0c..e6da413a 100755
--- a/tests/xfs/299
+++ b/tests/xfs/299
@@ -147,7 +147,7 @@ _exercise()
 
 }
 
-_scratch_mkfs_xfs -m crc=1 2>/dev/null | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs -m crc=1 2>/dev/null | _xfs_filter_mkfs 2>$tmp.mkfs
 cat $tmp.mkfs >>$seqres.full
 # keep the blocksize and data size for dd later
 . $tmp.mkfs
@@ -184,7 +184,7 @@ _exercise u
 echo "*** unmount"
 _scratch_unmount
 
-_scratch_mkfs_xfs -m crc=1 2>/dev/null | _filter_mkfs 2>$tmp.mkfs
+_scratch_mkfs_xfs -m crc=1 2>/dev/null | _xfs_filter_mkfs 2>$tmp.mkfs
 cat $tmp.mkfs >>$seqres.full
 # keep the blocksize and data size for dd later
 . $tmp.mkfs
diff --git a/tests/xfs/335 b/tests/xfs/335
index ccc508e7..c2bb1bde 100755
--- a/tests/xfs/335
+++ b/tests/xfs/335
@@ -22,7 +22,7 @@ _require_xfs_io_command "falloc"
 rm -f "$seqres.full"
 
 echo "Format and mount"
-_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 cat $tmp.mkfs > "$seqres.full" 2>&1
 _scratch_mount
diff --git a/tests/xfs/336 b/tests/xfs/336
index 279830b5..19ed8cc6 100755
--- a/tests/xfs/336
+++ b/tests/xfs/336
@@ -29,7 +29,7 @@ _require_xfs_io_command "falloc"
 rm -f "$seqres.full"
 
 echo "Format and mount"
-_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 cat $tmp.mkfs > "$seqres.full" 2>&1
 _scratch_mount
diff --git a/tests/xfs/337 b/tests/xfs/337
index a2515e36..ca476e28 100755
--- a/tests/xfs/337
+++ b/tests/xfs/337
@@ -23,7 +23,7 @@ _disable_dmesg_check
 rm -f "$seqres.full"
 
 echo "+ create scratch fs"
-_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 cat $tmp.mkfs > "$seqres.full" 2>&1
 
diff --git a/tests/xfs/341 b/tests/xfs/341
index f026aa37..dad1e0af 100755
--- a/tests/xfs/341
+++ b/tests/xfs/341
@@ -23,7 +23,7 @@ _require_xfs_io_command "falloc"
 rm -f "$seqres.full"
 
 echo "Format and mount"
-_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 cat $tmp.mkfs > "$seqres.full" 2>&1
 _scratch_mount
diff --git a/tests/xfs/342 b/tests/xfs/342
index 1ae414eb..0922b3fe 100755
--- a/tests/xfs/342
+++ b/tests/xfs/342
@@ -22,7 +22,7 @@ _require_xfs_io_command "falloc"
 rm -f "$seqres.full"
 
 echo "Format and mount"
-_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
+_scratch_mkfs | _xfs_filter_mkfs 2>$tmp.mkfs >/dev/null
 . $tmp.mkfs
 cat $tmp.mkfs > "$seqres.full" 2>&1
 _scratch_mount
diff --git a/tests/xfs/443 b/tests/xfs/443
index f2390bf3..a236c8f8 100755
--- a/tests/xfs/443
+++ b/tests/xfs/443
@@ -31,7 +31,7 @@ _require_xfs_io_command "falloc"
 _require_xfs_io_command "fpunch"
 _require_xfs_io_command "swapext"
 
-_scratch_mkfs | _filter_mkfs >> $seqres.full 2> $tmp.mkfs
+_scratch_mkfs | _xfs_filter_mkfs >> $seqres.full 2> $tmp.mkfs
 _scratch_mount
 
 # get fs block size
diff --git a/tests/xfs/448 b/tests/xfs/448
index 815f56cb..3cd56d4d 100755
--- a/tests/xfs/448
+++ b/tests/xfs/448
@@ -34,7 +34,7 @@ _require_no_xfs_bug_on_assert
 rm -f "$seqres.full"
 
 # Format and mount
-_scratch_mkfs | _filter_mkfs > $seqres.full 2> $tmp.mkfs
+_scratch_mkfs | _xfs_filter_mkfs > $seqres.full 2> $tmp.mkfs
 test "${PIPESTATUS[0]}" -eq 0 || _fail "mkfs failed"
 _scratch_mount
 
diff --git a/tests/xfs/490 b/tests/xfs/490
index 8c3b0684..08a03261 100755
--- a/tests/xfs/490
+++ b/tests/xfs/490
@@ -37,7 +37,7 @@ filter_dmesg()
 # If enable free inode B+tree, this case will fail on xfs_dialloc_ag_update_inobt,
 # that's not what we want to test. Due to finobt feature is not necessary for this
 # test, so disable it directly.
-_scratch_mkfs_xfs -m finobt=0 | _filter_mkfs 2>$tmp.mkfs >> $seqres.full
+_scratch_mkfs_xfs -m finobt=0 | _xfs_filter_mkfs 2>$tmp.mkfs >> $seqres.full
 
 # On V5 filesystem, this case can't trigger bug because it doesn't read inodes
 # we are allocating from disk - it simply overwrites them with new inode
diff --git a/tests/xfs/502 b/tests/xfs/502
index fb9a82c1..464326cc 100755
--- a/tests/xfs/502
+++ b/tests/xfs/502
@@ -25,7 +25,7 @@ _require_xfs_io_error_injection "iunlink_fallback"
 _require_scratch
 _require_test_program "t_open_tmpfiles"
 
-_scratch_mkfs | _filter_mkfs 2> $tmp.mkfs > /dev/null
+_scratch_mkfs | _xfs_filter_mkfs 2> $tmp.mkfs > /dev/null
 cat $tmp.mkfs >> $seqres.full
 . $tmp.mkfs
 
diff --git a/tests/xfs/513 b/tests/xfs/513
index bfdfd4f6..a13f0a03 100755
--- a/tests/xfs/513
+++ b/tests/xfs/513
@@ -68,7 +68,7 @@ MKFS_OPTIONS=""
 do_mkfs()
 {
 	echo "FORMAT: $@" | filter_loop | tee -a $seqres.full
-	$MKFS_XFS_PROG -f $* $LOOP_DEV | _filter_mkfs >>$seqres.full 2>$tmp.mkfs
+	$MKFS_XFS_PROG -f $* $LOOP_DEV | _xfs_filter_mkfs >>$seqres.full 2>$tmp.mkfs
 	if [ "${PIPESTATUS[0]}" -ne 0 ]; then
 		_fail "Fails on _mkfs_dev $* $LOOP_DEV"
 	fi
diff --git a/tests/xfs/530 b/tests/xfs/530
index 9c6f44d7..925a7b49 100755
--- a/tests/xfs/530
+++ b/tests/xfs/530
@@ -38,7 +38,7 @@ _require_scratch_nocheck
 
 echo "* Test extending rt inodes"
 
-_scratch_mkfs | _filter_mkfs >> $seqres.full 2> $tmp.mkfs
+_scratch_mkfs | _xfs_filter_mkfs >> $seqres.full 2> $tmp.mkfs
 . $tmp.mkfs
 
 echo "Create fake rt volume"
diff --git a/tests/xfs/533 b/tests/xfs/533
index b85b5298..c7d470c9 100755
--- a/tests/xfs/533
+++ b/tests/xfs/533
@@ -23,7 +23,7 @@ _require_test_program "punch-alternating"
 _require_xfs_io_error_injection "reduce_max_iextents"
 _require_xfs_io_error_injection "bmap_alloc_minlen_extent"
 
-_scratch_mkfs_sized $((1024 * 1024 * 1024)) | _filter_mkfs >> $seqres.full 2> $tmp.mkfs
+_scratch_mkfs_sized $((1024 * 1024 * 1024)) | _xfs_filter_mkfs >> $seqres.full 2> $tmp.mkfs
 . $tmp.mkfs
 
 # Filesystems with directory block size greater than one FSB will not be tested,
