diff --git a/common/rc b/common/rc
index 25203bb4..39a2deb0 100644
--- a/common/rc
+++ b/common/rc
@@ -1959,16 +1959,9 @@ _run_aiodio()
     return $status
 }
 
-# this test requires y2038 sysfs switch and filesystem
-# timestamp ranges support.
-_require_y2038()
+_require_timestamp_range()
 {
 	local device=${1:-$TEST_DEV}
-	local sysfsdir=/proc/sys/fs/fs-timestamp-check-on
-
-	if [ ! -e $sysfsdir ]; then
-		_notrun "no kernel support for y2038 sysfs switch"
-	fi
 
 	local tsmin tsmax
 	read tsmin tsmax <<<$(_filesystem_timestamp_range $device)
@@ -1980,23 +1973,32 @@ _require_y2038()
 _filesystem_timestamp_range()
 {
 	local device=${1:-$TEST_DEV}
+	u32max=$(((1<<32)-1))
+	s32min=-$((1<<31))
+	s32max=$(((1<<31)-1))
+	s64max=$(((1<<63)-1))
+	s64min=$((1<<63))
+
 	case $FSTYP in
-	ext4)
+	ext2)
+		echo "$s32min $s32max"
+		;;
+	ext3|ext4)
 		if [ $(dumpe2fs -h $device 2>/dev/null | grep "Inode size:" | cut -d: -f2) -gt 128 ]; then
-			echo "-2147483648 15032385535"
+			printf "%d %d\n" $s32min 0x37fffffff
 		else
-			echo "-2147483648 2147483647"
+			echo "$s32min $s32max"
 		fi
 		;;
 
-	xfs)
-		echo "-2147483648 2147483647"
-		;;
 	jfs)
-		echo "0 4294967295"
+		echo "0 $u32max"
 		;;
-	f2fs)
-		echo "-2147483648 2147483647"
+	xfs)
+		echo "$s32min $s32max"
+		;;
+	btrfs)
+		echo "$s64min $s64max"
 		;;
 	*)
 		echo "-1 -1"
diff --git a/tests/generic/402 b/tests/generic/402
index f742fedd..dd136ec2 100755
--- a/tests/generic/402
+++ b/tests/generic/402
@@ -4,15 +4,10 @@
 #
 # FS QA Test 402
 #
-# Tests to verify policy for filesystem timestamps for
-# supported ranges:
-# 1. Verify filesystem rw mount according to sysctl
-# timestamp_supported.
-# 2. Verify timestamp clamping for timestamps beyond max
-# timestamp supported.
+# Test to verify filesystem timestamps for supported ranges.
 #
-# Exit status 1: either or both tests above fail.
-# Exit status 0: both the above tests pass.
+# Exit status 1: test failed.
+# Exit status 0: test passed.
 #
 seq=`basename $0`
 seqres=$RESULT_DIR/$seq
@@ -49,47 +44,59 @@ check_stat()
 	prev_timestamp="$timestamp;$timestamp"
 	if [ $prev_timestamp != $stat_timestamp ]; then
 		echo "$prev_timestamp != $stat_timestamp" | tee -a $seqres.full
+		return 1
 	fi
+	return 0
 }
 
 run_test_individual()
 {
+	fail=0
 	file=$1
 	timestamp=$2
 	update_time=$3
 
 	# check if the time needs update
 	if [ $update_time -eq 1 ]; then
-		echo "Updating file: $file to timestamp `date -d @$timestamp`"  >> $seqres.full
+		echo "Updating file: $file to timestamp $timestamp"  >> $seqres.full
 		$XFS_IO_PROG -f -c "utimes $timestamp 0 $timestamp 0" $file
 		if [ $? -ne 0 ]; then
 			echo "Failed to update times on $file" | tee -a $seqres.full
+			fail=1
 		fi
 	fi
 
-	tsclamp=$(($timestamp>$tsmax?$tsmax:$timestamp))
-	echo "Checking file: $file Updated timestamp is `date -d @$tsclamp`"  >> $seqres.full
-	check_stat $file $tsclamp
+	tsclamp=$((timestamp<tsmin?tsmin:timestamp>tsmax?tsmax:timestamp))
+	echo "Checking file: $file Updated timestamp is $tsclamp"  >> $seqres.full
+	if ! check_stat $file $tsclamp; then
+		fail=1
+	fi
+	return $fail
 }
 
 run_test()
 {
+	fail=0
 	update_time=$1
 
 	n=1
 
 	for TIME in "${TIMESTAMPS[@]}"; do
-		run_test_individual ${SCRATCH_MNT}/test_$n $TIME $update_time
+		if ! run_test_individual ${SCRATCH_MNT}/test_$n $TIME $update_time; then
+			fail=1
+		fi
 		((n++))
 	done
+
+	return $fail
 }
 
 _scratch_mkfs &>> $seqres.full 2>&1 || _fail "mkfs failed"
-_require_y2038 $SCRATCH_DEV
+_require_timestamp_range $SCRATCH_DEV
 
 read tsmin tsmax <<<$(_filesystem_timestamp_range $SCRATCH_DEV)
-echo min supported timestamp $tsmin $(date --date=@$tsmin) >> $seqres.full
-echo max supported timestamp $tsmax $(date --date=@$tsmax) >> $seqres.full
+echo min supported timestamp $tsmin >> $seqres.full
+echo max supported timestamp $tsmax >> $seqres.full
 
 # Test timestamps array
 
@@ -97,45 +104,14 @@ declare -a TIMESTAMPS=(
 	$tsmin
 	0
 	$tsmax
+	$((tsmax/2))
 	$((tsmax+1))
-	4294967295
-	8589934591
-	34359738367
 )
 
-# Max timestamp is hardcoded to Mon Jan 18 19:14:07 PST 2038
-sys_tsmax=2147483647
-echo "max timestamp that needs to be supported by fs for rw mount is" \
-	"$((sys_tsmax+1)) $(date --date=@$((sys_tsmax+1)))" >> $seqres.full
-
-read ts_check <<<$(cat /proc/sys/fs/fs-timestamp-check-on)
-
 _scratch_mount
 result=$?
 
-if [ $ts_check -ne 0 ]; then
-	echo "sysctl filesystem timestamp check is on" >> $seqres.full
-	# check for mount failure if the minimum requirement for max timestamp
-	# supported is not met.
-	if [ $sys_tsmax -ge $tsmax ]; then
-		if [ $result -eq 0 ]; then
-			echo "mount test failed"  | tee -a $seqres.full
-			exit
-		fi
-	else
-		if [ $result -ne 0 ]; then
-			echo "failed to mount $SCRATCH_DEV"  | tee -a $seqres.full
-			exit
-		fi
-	fi
-else
-	# if sysctl switch is off then mount should succeed always.
-	echo "sysctl filesystem timestamp check is off" >> $seqres.full
-	if [ $result -ne 0 ]; then
-		echo "failed to mount $SCRATCH_DEV and timestamp check is off"  >> $seqres.full
-		exit
-	fi
-fi
+status=0
 
 # Begin test case 1
 echo "In memory timestamps update test start" >> $seqres.full
@@ -143,7 +119,9 @@ echo "In memory timestamps update test start" >> $seqres.full
 # update time on the file
 update_time=1
 
-run_test $update_time
+if ! run_test $update_time; then
+	status=1
+fi
 
 echo "In memory timestamps update complete" >> $seqres.full
 
@@ -162,12 +140,13 @@ update_time=0
 echo "On disk timestamps update test start" >> $seqres.full
 
 # Re-run test
-run_test $update_time
+if ! run_test $update_time; then
+	status=1
+fi
 
 echo "On disk timestamps update test complete" >> $seqres.full
 
-echo "y2038 inode timestamp tests completed successfully"
+echo "inode timestamp tests completed status $status"
 
 # success, all done
-status=0
-exit
+exit $status
diff --git a/tests/generic/402.out b/tests/generic/402.out
index 6c5b9308..4500e6c7 100644
--- a/tests/generic/402.out
+++ b/tests/generic/402.out
@@ -1,2 +1,2 @@
 QA output created by 402
-y2038 inode timestamp tests completed successfully
+inode timestamp tests completed status 0
