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https://github.com/linux-apfs/apfstests.git
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92 lines
2.5 KiB
Bash
92 lines
2.5 KiB
Bash
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#! /bin/bash
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# FS QA Test No. 472
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#
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# Test various swapfile activation oddities.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2018 Oracle. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#-----------------------------------------------------------------------
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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swapoff $swapfile 2> /dev/null
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch_swapfile
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_require_test_program mkswap
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_require_test_program swapon
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rm -f $seqres.full
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount >>$seqres.full 2>&1
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swapfile=$SCRATCH_MNT/swap
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len=$((2 * 1048576))
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page_size=$(get_page_size)
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swapfile_cycle() {
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local swapfile="$1"
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# Swap files must be nocow on Btrfs.
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$CHATTR_PROG +C $swapfile >> $seqres.full 2>&1
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"$here/src/mkswap" $swapfile >> $seqres.full
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"$here/src/swapon" $swapfile 2>&1 | _filter_scratch
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swapoff $swapfile 2>> $seeqres.full
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rm -f $swapfile
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}
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# Create a regular swap file
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echo "regular swap" | tee -a $seqres.full
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_pwrite_byte 0x58 0 $len $swapfile >> $seqres.full
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swapfile_cycle $swapfile
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# Create a swap file with a little too much junk on the end
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echo "too long swap" | tee -a $seqres.full
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_pwrite_byte 0x58 0 $((len + 3)) $swapfile >> $seqres.full
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swapfile_cycle $swapfile
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# Create a ridiculously small swap file. Each swap file must have at least
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# two pages after the header page.
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echo "tiny swap" | tee -a $seqres.full
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tiny_len=$((page_size * 3))
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_pwrite_byte 0x58 0 $tiny_len $swapfile >> $seqres.full
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swapfile_cycle $swapfile
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status=0
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exit
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