cli_root/zfs_upgrade/zfs_upgrade.kshlib

	zfs_upgrade.kshlib revision 1d32ba663e202c24a5a1f2e5aef83fffb447cb7f
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
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# or http://www.opensolaris.org/os/licensing.
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
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#
# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# Copyright (c) 2016 by Delphix. All rights reserved.
#

. $STF_SUITE/include/libtest.shlib

#
# For zfs create.
#
set -A zpl_create_versions 3 4  5
set -A spa_create_versions 9 15 24

#
# For zfs upgrade
#
set -A zpl_upgrade_versions 3 4  5
set -A spa_upgrade_versions 9 15 24

function default_setup_datasets #rootfs
{
    typeset rootfs=$1
    typeset pool=${rootfs%%/*}
    typeset -i vp=$(get_pool_prop version $pool)
    typeset -i version
    typeset -i m
    typeset -i spa_version
    typeset -i zpl_version

    for version in $ZFS_ALL_VERSIONS ; do
        typeset verfs
        eval verfs=\$ZFS_VERSION_$version
        typeset current_fs=$rootfs/$verfs
        typeset current_snap=${current_fs}@snap
        typeset current_clone=$rootfs/clone$verfs

        (( m=0 ))
        (( spa_version=0 ))
        while (( m < ${#zpl_create_versions[@]} )); do
            (( zpl_version=${zpl_create_versions[m]} ))
            if (( version == zpl_version )); then
                (( spa_version=${spa_create_versions[m]} ))
                break
            fi
            (( m+=1 ))
        done
        if (( spa_version != 0 )) && (( vp < spa_version )); then
            log_mustnot zfs create -o version=${version} ${current_fs}
            continue
        fi
        log_must zfs create -o version=${version} ${current_fs}
        log_must zfs snapshot ${current_snap}
        log_must zfs clone ${current_snap} ${current_clone}

        for subversion in $ZFS_ALL_VERSIONS ; do
            typeset subverfs
            eval subverfs=\$ZFS_VERSION_$subversion

            (( m=0 ))
            (( spa_version=0 ))
            while (( m < ${#zpl_create_versions[@]} )); do
                (( zpl_version=${zpl_create_versions[m]} ))
                if (( subversion == zpl_version )); then
                    (( spa_version=${spa_create_versions[m]} ))
                    break
                fi
                (( m+=1 ))
            done
            if (( spa_version != 0 )) && (( vp < spa_version )); then
                log_mustnot zfs create -o \
                version=${subversion} ${current_fs}/$subverfs
            else
                log_must zfs create -o \
                version=${subversion} ${current_fs}/$subverfs
            fi
        done
    done
}

function default_cleanup_datasets #rootfs
{
    typeset rootfs=$1

    if datasetexists $rootfs ; then
        log_must zfs destroy -Rf $rootfs
    fi

    if datasetnonexists $rootfs ; then
        log_must zfs create $rootfs
    fi
}

function default_check_zfs_upgrade #rootfs
{
    typeset rootfs=$1
    typeset pool=${rootfs%%/*}
    typeset -i vp=$(get_pool_prop version $pool)
    typeset -i m
    typeset -i spa_version
    typeset -i zpl_version
    typeset newv
    typeset -i df_ret

    df -F zfs / > /dev/null 2>&1
    df_ret=$?

    for newv in "" $ZFS_VERSION; do
        default_setup_datasets $rootfs
        if [[ -n $newv ]]; then
            opt="-V $newv"
        else
            newv=$ZFS_VERSION
        fi

        (( m=0 ))
        (( spa_version=0 ))
        while (( m < ${#zpl_upgrade_versions[@]} )); do
            (( zpl_version=${zpl_upgrade_versions[m]} ))
            if (( newv == zpl_version )); then
                (( spa_version=${spa_upgrade_versions[m]} ))
                break
            fi
            (( m+=1 ))
        done

        if (( df_ret != 0 )); then
            if (( spa_version != 0 )) && (( vp < spa_version )); then
                log_mustnot eval 'zfs upgrade $opt -a > /dev/null 2>&1'
                log_must eval 'zpool upgrade $pool > /dev/null 2>&1'
                vp=$(get_pool_prop version $pool)
            fi

            log_must eval 'zfs upgrade $opt -a > /dev/null 2>&1'

            for fs in $(zfs list -rH -t filesystem -o name $rootfs) ; do
                log_must check_fs_version $fs $newv
            done
        fi

        default_cleanup_datasets $rootfs
    done
}

function check_fs_version #filesystem version
{
    typeset fs=$1
    typeset -i version=${2:-$ZFS_VERSION}

    if [[ -z $fs ]]; then
        log_fail "No filesystem specified."
    fi

    typeset -i curv=$(get_prop version $fs)
    if (( curv != version )); then
        return 1
    fi
    return 0
}