From 88a5ee0706a27bae6209d0e6d061c9e9c55b219a Mon Sep 17 00:00:00 2001
From: Tino Reichardt <milky-zfs@mcmilk.de>
Date: Tue, 6 Aug 2024 01:18:07 +0200
Subject: [PATCH] ZTS: fix zfs_copies_006_pos test on Ubuntu 20.04 (#16409)

This test was failing before:
- FAIL cli_root/zfs_copies/zfs_copies_006_pos (expected PASS)

Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
---
 .../tests/functional/cli_root/zfs_copies/zfs_copies.kshlib      | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_copies/zfs_copies.kshlib b/tests/zfs-tests/tests/functional/cli_root/zfs_copies/zfs_copies.kshlib
index 9911ccdf53..a7a93a3046 100644
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_copies/zfs_copies.kshlib
+++ b/tests/zfs-tests/tests/functional/cli_root/zfs_copies/zfs_copies.kshlib
@@ -153,5 +153,7 @@ function do_vol_test
 		log_must umount $mntp
 	fi
 
+	# Ubuntu 20.04 wants a sync here
+	log_must sync
 	log_must zfs destroy $vol
 }