diff --git a/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh b/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh
index 53828c912ca3..af6ac8d78e4e 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zpool_import/import_devices_missing.ksh
@@ -1,122 +1,122 @@
 #!/bin/ksh -p
 
 #
 # This file and its contents are supplied under the terms of the
 # Common Development and Distribution License ("CDDL"), version 1.0.
 # You may only use this file in accordance with the terms of version
 # 1.0 of the CDDL.
 #
 # A full copy of the text of the CDDL should have accompanied this
 # source.  A copy of the CDDL is also available via the Internet at
 # http://www.illumos.org/license/CDDL.
 #
 
 #
 # Copyright (c) 2016 by Delphix. All rights reserved.
 #
 
 . $STF_SUITE/tests/functional/cli_root/zpool_import/zpool_import.kshlib
 
 #
 # DESCRIPTION:
 #	A pool should be importable when up to 2 top-level devices are missing.
 #
 # STRATEGY:
 #	1. Create a pool.
 #	2. Write some data to the pool and checksum it.
 #	3. Add one or more devices.
 #	4. Write more data to the pool and checksum it.
 #	5. Export the pool.
 #	6. Move added devices out of the devices directory.
 #	7. Import the pool with missing devices.
 #	8. Verify that the first batch of data is intact.
 #	9. Verify that accessing the second batch of data doesn't suspend pool.
 #	10. Export the pool, move back missing devices, Re-import the pool.
 #	11. Verify that all the data is intact.
 #
 
 verify_runnable "global"
 
 function custom_cleanup
 {
 	log_must set_spa_load_verify_metadata 1
 	log_must set_spa_load_verify_data 1
 	log_must set_zfs_max_missing_tvds 0
 	log_must rm -rf $BACKUP_DEVICE_DIR
 	# Highly damaged pools may fail to be destroyed, so we export them.
 	poolexists $TESTPOOL1 && log_must zpool export $TESTPOOL1
 	cleanup
 }
 
 log_onexit custom_cleanup
 
 function test_devices_missing
 {
 	typeset poolcreate="$1"
 	typeset addvdevs="$2"
 	typeset missingvdevs="$3"
 	typeset -i missingtvds="$4"
 
 	log_note "$0: pool '$poolcreate', adding $addvdevs, then" \
 	    "moving away $missingvdevs."
 
 	log_must zpool create $TESTPOOL1 $poolcreate
 
 	log_must generate_data $TESTPOOL1 $MD5FILE "first"
 
 	log_must zpool add $TESTPOOL1 $addvdevs
 
 	log_must generate_data $TESTPOOL1 $MD5FILE2 "second"
 
-	log_must zpool export $TESTPOOL1
+	log_must_busy zpool export $TESTPOOL1
 
 	log_must mv $missingvdevs $BACKUP_DEVICE_DIR
 
 	# Tell zfs that it is ok to import a pool with missing top-level vdevs
 	log_must set_zfs_max_missing_tvds $missingtvds
 	# Missing devices means that data or metadata may be corrupted.
 	(( missingtvds > 1 )) && log_must set_spa_load_verify_metadata 0
 	log_must set_spa_load_verify_data 0
 	log_must zpool import -o readonly=on -d $DEVICE_DIR $TESTPOOL1
 
 	log_must verify_data_md5sums $MD5FILE
 
 	log_note "Try reading second batch of data, make sure pool doesn't" \
 	    "get suspended."
 	verify_data_md5sums $MD5FILE >/dev/null 2>&1
 
-	log_must zpool export $TESTPOOL1
+	log_must_busy zpool export $TESTPOOL1
 
 	typeset newpaths=$(echo "$missingvdevs" | \
 		sed "s:$DEVICE_DIR:$BACKUP_DEVICE_DIR:g")
 	log_must mv $newpaths $DEVICE_DIR
 	log_must set_spa_load_verify_metadata 1
 	log_must set_spa_load_verify_data 1
 	log_must set_zfs_max_missing_tvds 0
 	log_must zpool import -d $DEVICE_DIR $TESTPOOL1
 
 	log_must verify_data_md5sums $MD5FILE
 	log_must verify_data_md5sums $MD5FILE2
 
 	# Cleanup
 	log_must zpool destroy $TESTPOOL1
 
 	log_note ""
 }
 
 log_must mkdir -p $BACKUP_DEVICE_DIR
 
 test_devices_missing "$VDEV0" "$VDEV1" "$VDEV1" 1
 test_devices_missing "$VDEV0" "$VDEV1 $VDEV2" "$VDEV1" 1
 test_devices_missing "mirror $VDEV0 $VDEV1" "mirror $VDEV2 $VDEV3" \
     "$VDEV2 $VDEV3" 1
 test_devices_missing "$VDEV0 log $VDEV1" "$VDEV2" "$VDEV2" 1
 
 #
 # Note that we are testing for 2 non-consecutive missing devices.
 # Missing consecutive devices results in missing metadata. Because of
 # Missing metadata can cause the root dataset to fail to mount.
 #
 test_devices_missing "$VDEV0" "$VDEV1 $VDEV2 $VDEV3" "$VDEV1 $VDEV3" 2
 
 log_pass "zpool import succeeded with missing devices."