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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (c) 2015 Fujitsu Ltd.
# Author: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
#
# Test mkswap command with some basic options.
TST_CNT=10
TST_SETUP=setup
TST_TESTFUNC=do_test
TST_NEEDS_ROOT=1
TST_NEEDS_DEVICE=1
TST_NEEDS_CMDS="uuidgen blkid blockdev mkswap"
. tst_test.sh
setup()
{
UUID=`uuidgen`
PAGE_SIZE=`tst_getconf PAGESIZE`
# Here get the size of the device and align it down to be the
# multiple of $PAGE_SIZE and use that as the size for testing.
real_size=`blockdev --getsize64 $TST_DEVICE`
DEVICE_SIZE=$((($real_size/$PAGE_SIZE * $PAGE_SIZE)/1024))
}
check_for_file()
{
local path="$1"
if [ -z "$path" -o -e "$path" ]; then
return
fi
return 1
}
mkswap_verify()
{
local mkswap_op="$1"
local op_arg="$2"
local swapfile="$3"
local dev_file="$5"
local before=`awk '/SwapTotal/ {print $2}' /proc/meminfo`
local swapsize=${4:-$DEVICE_SIZE}
if [ "$mkswap_op" = "-p" ]; then
local pagesize=$op_arg
else
local pagesize=$PAGE_SIZE
fi
if tst_kvcmp -lt "2.6.35" && [ -n "$dev_file" ]; then
tst_res TINFO "Waiting for $dev_file to appear"
tst_sleep 100ms
else
TST_RETRY_FUNC "check_for_file $dev_file" 0
fi
swapon $swapfile 2>/dev/null
if [ $? -ne 0 ]; then
tst_res TINFO "Can not do swapon on $swapfile."
if [ $pagesize -ne $PAGE_SIZE ]; then
tst_res TINFO "Page size specified by 'mkswap -p' \
is not equal to system's page size."
tst_res TINFO "Swapon failed expectedly."
return 0
fi
if [ $swapsize -gt $DEVICE_SIZE ]; then
tst_res TINFO "Device size specified by 'mkswap' \
greater than real size."
tst_res TINFO "Swapon failed expectedly."
return 0
fi
tst_res TINFO "Swapon failed unexpectedly."
return 1
fi
local after=`awk '/SwapTotal/ {print $2}' /proc/meminfo`
local diff=$((after-before))
local filesize=$((swapsize-pagesize/1024))
local ret=0
# In general, the swap increment by doing swapon should be equal to
# the device size minus a page size, however for some kernels, the
# increment we get is not exactly equal to that value, but is equal
# to the value minus an extra page size, e.g. on RHEL5.11GA.
if [ $diff -ne $filesize ] && \
[ $diff -ne $((filesize-pagesize/1024)) ]; then
ret=1
fi
swapoff $swapfile 2>/dev/null
if [ $? -ne 0 ]; then
tst_res TWARN "Can not do swapoff on $swapfile."
fi
return $ret
}
mkswap_test()
{
local mkswap_op="$1"
local op_arg="$2"
local device="$3"
local size="$4"
local dev_file="$5"
local mkswap_cmd="mkswap $mkswap_op $op_arg $TST_DEVICE $size"
${mkswap_cmd} >temp 2>&1
if [ $? -ne 0 ]; then
grep -q -E "unknown option|invalid option|Usage" temp
if [ $? -eq 0 ]; then
tst_res TCONF "'${mkswap_cmd}' not supported."
return
fi
tst_res TFAIL "'${mkswap_cmd}' failed."
cat temp
return
fi
udevadm trigger --name-match=$TST_DEVICE
if [ -n "$device" ]; then
mkswap_verify "$mkswap_op" "$op_arg" "$device" "$size" "$dev_file"
if [ $? -ne 0 ]; then
tst_res TFAIL "'${mkswap_cmd}' failed, not expected."
return
fi
fi
tst_res TPASS "'${mkswap_cmd}' passed."
}
do_test()
{
case $1 in
1) mkswap_test "" "" "$TST_DEVICE";;
2) mkswap_test "" "" "$TST_DEVICE" "$((DEVICE_SIZE-PAGE_SIZE/1024))";;
3) mkswap_test "-f" "" "$TST_DEVICE" "$((DEVICE_SIZE+PAGE_SIZE/1024))";;
4) mkswap_test "-c" "" "$TST_DEVICE";;
5) mkswap_test "-p" "2048" "$TST_DEVICE";;
6) mkswap_test "-L" "ltp_testswap" "-L ltp_testswap" "" "/dev/disk/by-label/ltp_testswap";;
7) mkswap_test "-v1" "" "$TST_DEVICE";;
8) mkswap_test "-U" "$UUID" "-U $UUID" "" "/dev/disk/by-uuid/$UUID";;
9) mkswap_test "-V";;
10) mkswap_test "-h";;
esac
}
tst_run