mirror_zfs/tests/zfs-tests/tests/functional/bclone/bclone_common.kshlib
Tony Hutter b62fd2cef9 ZTS: Skip cross-fs bclone tests if FreeBSD < 14.0
Skip cross filesystem block cloning tests on FreeBSD if running
less than version 14.0.  Cross filesystem copy_file_range() was
added in FreeBSD 14.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #15901
2024-02-16 09:33:26 -08:00

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#
# 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.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or https://opensource.org/licenses/CDDL-1.0.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# 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
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright (c) 2023 by Pawel Jakub Dawidek
#
. $STF_SUITE/tests/functional/bclone/bclone.cfg
export RECORDSIZE=$(zfs get -Hp -o value recordsize $TESTPOOL/$TESTFS)
MINBLKSIZE1=512
MINBLKSIZE2=1024
function verify_block_cloning
{
if is_linux && [[ $(linux_version) -lt $(linux_version "4.5") ]]; then
log_unsupported "copy_file_range not available before Linux 4.5"
fi
}
function verify_crossfs_block_cloning
{
if is_linux && [[ $(linux_version) -lt $(linux_version "5.3") ]]; then
log_unsupported "copy_file_range can't copy cross-filesystem before Linux 5.3"
fi
# Cross dataset block cloning only supported on FreeBSD 14+
# https://github.com/freebsd/freebsd-src/commit/969071be938c
if is_freebsd && [ $(freebsd_version) -lt $(freebsd_version 14.0) ] ; then
log_unsupported "Cloning across datasets not supported in $(uname -r)"
fi
}
# Unused.
function size_to_dsize
{
typeset -r size=$1
typeset -r dir=$2
typeset -r dataset=$(df $dir | tail -1 | awk '{print $1}')
typeset -r recordsize=$(get_prop recordsize $dataset)
typeset -r copies=$(get_prop copies $dataset)
typeset dsize
if [[ $size -le $recordsize ]]; then
dsize=$(( ((size - 1) / MINBLOCKSIZE + 1) * MINBLOCKSIZE ))
else
dsize=$(( ((size - 1) / recordsize + 1) * recordsize ))
fi
dsize=$((dsize*copies))
echo $dsize
}
function test_file_integrity
{
typeset -r original_checksum=$1
typeset -r clone=$2
typeset -r filesize=$3
typeset -r clone_checksum=$(sha256digest $clone)
if [[ $original_checksum != $clone_checksum ]]; then
log_fail "Clone $clone is corrupted with file size $filesize"
fi
}
function verify_pool_prop_eq
{
typeset -r prop=$1
typeset -r expected=$2
typeset -r value=$(get_pool_prop $prop $TESTPOOL)
if [[ $value != $expected ]]; then
log_fail "Pool property $prop is incorrect: expected $expected, got $value"
fi
}
function verify_pool_props
{
typeset -r dsize=$1
typeset -r ratio=$2
if [[ $dsize -eq 0 ]]; then
verify_pool_prop_eq bcloneused 0
verify_pool_prop_eq bclonesaved 0
verify_pool_prop_eq bcloneratio 1.00
else
if [[ $ratio -eq 1 ]]; then
verify_pool_prop_eq bcloneused 0
else
verify_pool_prop_eq bcloneused $dsize
fi
verify_pool_prop_eq bclonesaved $((dsize*(ratio-1)))
verify_pool_prop_eq bcloneratio "${ratio}.00"
fi
}
# Function to test file copying and integrity check.
function bclone_test
{
typeset -r datatype=$1
typeset filesize=$2
typeset -r embedded=$3
typeset -r srcdir=$4
typeset -r dstdir=$5
typeset dsize
typeset -r original="${srcdir}/original"
typeset -r clone="${dstdir}/clone"
log_note "Testing file copy with datatype $datatype, file size $filesize, embedded $embedded"
# Create a test file with known content.
case $datatype in
random|text)
sync_pool $TESTPOOL
if [[ $datatype = "random" ]]; then
dd if=/dev/urandom of=$original bs=$filesize count=1 2>/dev/null
else
filesize=$(((filesize/4)*4))
dd if=/dev/urandom bs=$(((filesize/4)*3)) count=1 | \
openssl base64 -A > $original
fi
sync_pool $TESTPOOL
clonefile -f $original "${clone}-tmp"
sync_pool $TESTPOOL
# It is hard to predict block sizes that will be used,
# so just do one clone and take it from bcloneused.
filesize=$(zpool get -Hp -o value bcloneused $TESTPOOL)
if [[ $embedded = "false" ]]; then
log_must test $filesize -gt 0
fi
rm -f "${clone}-tmp"
sync_pool $TESTPOOL
dsize=$filesize
;;
hole)
log_must truncate_test -s $filesize -f $original
dsize=0
;;
*)
log_fail "Unknown datatype $datatype"
;;
esac
if [[ $embedded = "true" ]]; then
dsize=0
fi
typeset -r original_checksum=$(sha256digest $original)
sync_pool $TESTPOOL
# Create a first clone of the entire file.
clonefile -f $original "${clone}0"
# Try to clone the clone in the same transaction group.
clonefile -f "${clone}0" "${clone}2"
# Clone the original again...
clonefile -f $original "${clone}1"
# ...and overwrite it in the same transaction group.
clonefile -f $original "${clone}1"
# Clone the clone...
clonefile -f "${clone}1" "${clone}3"
sync_pool $TESTPOOL
# ...and overwrite in the new transaction group.
clonefile -f "${clone}1" "${clone}3"
sync_pool $TESTPOOL
# Test removal of the pending clones (before they are committed to disk).
clonefile -f $original "${clone}4"
clonefile -f "${clone}4" "${clone}5"
rm -f "${clone}4" "${clone}5"
# Clone into one file, but remove another file, but with the same data in
# the same transaction group.
clonefile -f $original "${clone}5"
sync_pool $TESTPOOL
clonefile -f $original "${clone}4"
rm -f "${clone}5"
test_file_integrity $original_checksum "${clone}4" $filesize
sync_pool $TESTPOOL
test_file_integrity $original_checksum "${clone}4" $filesize
clonefile -f "${clone}4" "${clone}5"
# Verify integrity of the cloned file before it is committed to disk.
test_file_integrity $original_checksum "${clone}5" $filesize
sync_pool $TESTPOOL
# Verify integrity in the new transaction group.
test_file_integrity $original_checksum "${clone}0" $filesize
test_file_integrity $original_checksum "${clone}1" $filesize
test_file_integrity $original_checksum "${clone}2" $filesize
test_file_integrity $original_checksum "${clone}3" $filesize
test_file_integrity $original_checksum "${clone}4" $filesize
test_file_integrity $original_checksum "${clone}5" $filesize
verify_pool_props $dsize 7
# Clear cache and test after fresh import.
log_must zpool export $TESTPOOL
log_must zpool import $TESTPOOL
# Cloned uncached file.
clonefile -f $original "${clone}6"
# Cloned uncached clone.
clonefile -f "${clone}6" "${clone}7"
# Cache the file.
cat $original >/dev/null
clonefile -f $original "${clone}8"
clonefile -f "${clone}8" "${clone}9"
test_file_integrity $original_checksum "${clone}6" $filesize
test_file_integrity $original_checksum "${clone}7" $filesize
test_file_integrity $original_checksum "${clone}8" $filesize
test_file_integrity $original_checksum "${clone}9" $filesize
sync_pool $TESTPOOL
verify_pool_props $dsize 11
log_must zpool export $TESTPOOL
log_must zpool import $TESTPOOL
test_file_integrity $original_checksum "${clone}0" $filesize
test_file_integrity $original_checksum "${clone}1" $filesize
test_file_integrity $original_checksum "${clone}2" $filesize
test_file_integrity $original_checksum "${clone}3" $filesize
test_file_integrity $original_checksum "${clone}4" $filesize
test_file_integrity $original_checksum "${clone}5" $filesize
test_file_integrity $original_checksum "${clone}6" $filesize
test_file_integrity $original_checksum "${clone}7" $filesize
test_file_integrity $original_checksum "${clone}8" $filesize
test_file_integrity $original_checksum "${clone}9" $filesize
rm -f $original
rm -f "${clone}1" "${clone}3" "${clone}5" "${clone}7"
sync_pool $TESTPOOL
test_file_integrity $original_checksum "${clone}0" $filesize
test_file_integrity $original_checksum "${clone}2" $filesize
test_file_integrity $original_checksum "${clone}4" $filesize
test_file_integrity $original_checksum "${clone}6" $filesize
test_file_integrity $original_checksum "${clone}8" $filesize
test_file_integrity $original_checksum "${clone}9" $filesize
verify_pool_props $dsize 6
rm -f "${clone}0" "${clone}2" "${clone}4" "${clone}8" "${clone}9"
sync_pool $TESTPOOL
test_file_integrity $original_checksum "${clone}6" $filesize
verify_pool_props $dsize 1
rm -f "${clone}6"
sync_pool $TESTPOOL
verify_pool_props $dsize 1
}