cli_root/zfs_set/canmount_003_pos.ksh

#!/bin/ksh -p
#
# CDDL HEADER START
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# The contents of this file are subject to the terms of the
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# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
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# Copyright (c) 2012, 2016 by Delphix. All rights reserved.
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. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zfs_set/zfs_set_common.kshlib

#
# DESCRIPTION:
# While canmount=noauto and  the dataset is mounted,
# zfs must not attempt to unmount it.
#
# STRATEGY:
# 1. Setup a pool and create fs, volume, snapshot clone within it.
# 2. Set canmount=noauto for each dataset and check the return value
#    and check if it still can not be unmounted when the dataset is mounted
#

verify_runnable "both"

set -A dataset_pos "$TESTPOOL/$TESTFS" "$TESTPOOL/$TESTCLONE"

function cleanup
{
    i=0
    cd $pwd
    while (( i < ${#dataset_pos[*]} )); do
        ds=${dataset_pos[i]}
        if datasetexists $ds; then
            log_must zfs set mountpoint=${old_mnt[i]} $ds
            log_must zfs set canmount=${old_canmount[i]} $ds
        fi
        (( i = i + 1 ))
    done

    ds=$TESTPOOL/$TESTCLONE
    if datasetexists $ds; then
        mntp=$(get_prop mountpoint $ds)
        log_must zfs destroy $ds
        if [[ -d $mntp ]]; then
            log_must rm -fr $mntp
        fi
    fi

    if snapexists $TESTPOOL/$TESTFS@$TESTSNAP ; then
        log_must zfs destroy -R $TESTPOOL/$TESTFS@$TESTSNAP
    fi

    zfs unmount -a > /dev/null 2>&1
    log_must zfs mount -a
}

log_assert "While canmount=noauto and  the dataset is mounted,"\
        " zfs must not attempt to unmount it"
log_onexit cleanup

set -A old_mnt
set -A old_canmount
typeset ds
typeset pwd=$PWD

log_must zfs snapshot $TESTPOOL/$TESTFS@$TESTSNAP
log_must zfs clone $TESTPOOL/$TESTFS@$TESTSNAP $TESTPOOL/$TESTCLONE

typeset -i i=0
while (( i < ${#dataset_pos[*]} )); do
    ds=${dataset_pos[i]}
    old_mnt[i]=$(get_prop mountpoint $ds)
    old_canmount[i]=$(get_prop canmount $ds)
    (( i = i + 1 ))
done

i=0
while (( i < ${#dataset_pos[*]} )) ; do
    dataset=${dataset_pos[i]}
    if  ismounted $dataset; then
        log_must cd ${old_mnt[i]}
        set_n_check_prop "noauto" "canmount" "$dataset"
        log_must mounted $dataset
    fi
    (( i = i + 1 ))
done

log_pass "Setting canmount=noauto to filesystem while dataset busy pass."