From 4f8b2356cc98a3cfed2da21c56789593dc8c684f Mon Sep 17 00:00:00 2001
From: Ryan Moeller <ryan@iXsystems.com>
Date: Wed, 27 May 2020 20:18:06 -0400
Subject: [PATCH] ZTS: Retry export/destroy when busy in zpool_import_012

It can take a moment for the NFS server to give up the mountpoint
after unsharing a filesystem.

Use log_must_busy to retry export/destroy a few times after switching
off sharenfs.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #10380
---
 .../functional/cli_root/zpool_import/zpool_import_012_pos.ksh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_012_pos.ksh b/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_012_pos.ksh
index 222c4aebe..a568948e3 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_012_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_012_pos.ksh
@@ -147,9 +147,9 @@ for option in "" "-Df"; do
 				while ((guid_bit <= 1)); do
 					typeset guid_flag="pool name"
 					if [[ -z $option ]]; then
-						log_must zpool export $pool
+						log_must_busy zpool export $pool
 					else
-						log_must zpool destroy $pool
+						log_must_busy zpool destroy $pool
 					fi
 
 					typeset target=$pool