1#! /usr/bin/ksh -p
2#
3#
4# This file and its contents are supplied under the terms of the
5# Common Development and Distribution License ("CDDL"), version 1.0.
6# You may only use this file in accordance with the terms of version
7# 1.0 of the CDDL.
8#
9# A full copy of the text of the CDDL should have accompanied this
10# source.  A copy of the CDDL is also available via the Internet at
11# http://www.illumos.org/license/CDDL.
12#
13
14#
15# Copyright 2016 Nexenta Systems, Inc. All rights reserved.
16#
17
18. $STF_SUITE/include/libtest.shlib
19
20#
21# DESCRIPTION:
22# zfs umount should not fail because flushing of DNLC
23# uses async implementation of zfs_inactive
24#
25# STRATEGY:
26# 1. Call zfs unmount/mount to be sure DNLC is empty
27# 2. Create a lot of files
28# 3. Call zfs unmount command
29# 4. Make sure the file systems were unmounted
30# 5. Mount them back
31#
32
33for fs in 1 2 3; do
34	log_must mounted $TESTDIR.$fs
35	log_must zfs umount $TESTPOOL/$TESTFS.$fs
36	log_must unmounted $TESTDIR.$fs
37	log_must zfs mount $TESTPOOL/$TESTFS.$fs
38	log_must mounted $TESTDIR.$fs
39
40	for fn in $(seq 1 8096); do
41		log_must dd if=/dev/urandom of=$TESTDIR.$fs/file$fn bs=1024 \
42		    count=1
43	done
44
45	log_must zfs umount $TESTPOOL/$TESTFS.$fs
46	log_must unmounted $TESTDIR.$fs
47	log_must zfs mount $TESTPOOL/$TESTFS.$fs
48	log_must mounted $TESTDIR.$fs
49	log_must rm -f $TESTDIR.$fs/file*
50done
51
52log_pass "All file systems are unmounted"
53