stress2: Update tool to list both DATA and HOLES in a file.
Added a regression test.
This commit is contained in:
Peter Holm
parent
d3975204e4
commit
799db59e9a
77
tools/test/stress2/misc/seekhole.sh
Executable file
77
tools/test/stress2/misc/seekhole.sh
Executable file
@ -0,0 +1,77 @@
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#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# A SEEK_HOLE / SEEK_DATA test scenario
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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prog=$(basename "$0" .sh)
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exp=/tmp/$prog.exp
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here=`pwd`
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log=/tmp/$prog.log
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cc -o /tmp/lsholes -Wall -Wextra -O2 $here/../tools/lsholes.c | exit 1
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cat > $exp <<EXP
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Min hole size is 32768, file size is 524288000.
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data #1 @ 0, size=32768)
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hole #2 @ 32768, size=32768
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data #3 @ 65536, size=32768)
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hole #4 @ 98304, size=32768
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data #5 @ 131072, size=32768)
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hole #6 @ 163840, size=524091392
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data #7 @ 524255232, size=32768)
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hole #8 @ 524288000, size=0
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EXP
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set -eu
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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mdconfig -s 2g -u $mdstart
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newfs -U /dev/md$mdstart > /dev/null
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mount /dev/md$mdstart $mntpoint
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set +e
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file=$mntpoint/file
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truncate -s 500m $file
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bs=`getconf MIN_HOLE_SIZE $file`
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printf "\001" | dd of=$file seek=$((0*bs)) bs=1 count=1 conv=notrunc status=none
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printf "\002" | dd of=$file seek=$((2*bs)) bs=1 count=1 conv=notrunc status=none
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printf "\003" | dd of=$file seek=$((4*bs)) bs=1 count=1 conv=notrunc status=none
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s1=0
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s2=0
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/tmp/lsholes $file > $log 2>&1; s1=$?
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cat $log
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cmp -s $exp $log || s2=1
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umount $mntpoint
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mdconfig -d -u $mdstart
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rm -f /tmp/lsholes $exp $log
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exit $((s1 + s2))
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@ -40,7 +40,8 @@ main(int argc, char *argv[])
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{
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struct stat st;
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off_t data, hole, pos;
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long mx;
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long mn;
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intmax_t siz;
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int fd, n;
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char *name;
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@ -54,33 +55,47 @@ main(int argc, char *argv[])
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err(1, "open(%s)", name);
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if (fstat(fd, &st))
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err(1, "fstat()");
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if ((mx = fpathconf(fd, _PC_MIN_HOLE_SIZE)) == -1)
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if ((mn = fpathconf(fd, _PC_MIN_HOLE_SIZE)) == -1)
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err(1, "fpathconf()");
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fprintf(stderr, "file \"%s\" size = %jd, _PC_MIN_HOLE_SIZE = %ld\n",
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name, (intmax_t)st.st_size, mx);
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fprintf(stderr, "Min hole size is %ld, file size is %jd.\n",
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mn, (intmax_t)st.st_size);
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n = 1;
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pos = 0;
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while (pos < st.st_size) {
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if ((hole = lseek(fd, pos, SEEK_HOLE)) == -1)
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hole = lseek(fd, pos, SEEK_HOLE);
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if (hole == -1 && errno != ENXIO)
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err(1, "lseek(SEEK_HOLE)");
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if ((data = lseek(fd, hole, SEEK_DATA)) == -1) {
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if (errno == ENXIO) {
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if (hole == st.st_size)
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break;
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fprintf(stderr,
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"No data after hole @ %jd\n",
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(intmax_t)hole);
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break;
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}
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err(1, "lseek(SEEK_DATA)");
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data = lseek(fd, pos, SEEK_DATA);
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if (data == -1 && errno != ENXIO)
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err(1, "lseek(SEEK_data)");
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if (hole >= 0 && data >= 0 && hole > data) {
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siz = hole - data;
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printf("data #%d @ %ld, size=%jd)\n",
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n, (intmax_t)data, siz);
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n++;
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pos += siz;
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}
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if (hole >= 0 && data >= 0 && hole < data) {
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siz = data - hole;
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printf("hole #%d @ %ld, size=%jd\n",
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n, (intmax_t)hole, siz);
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n++;
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pos += siz;
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}
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if (hole >= 0 && data == -1) {
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siz = st.st_size - hole;
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printf("hole #%d @ %ld, size=%jd\n",
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n, (intmax_t)hole, siz);
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n++;
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pos += siz;
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}
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pos = data;
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printf("hole #%d @ %jd (0x%jx), size=%jd (0x%jx)\n",
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n, (intmax_t)hole, (intmax_t)hole, (intmax_t)(data - hole),
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(intmax_t)(data - hole));
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n++;
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}
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if (hole == st.st_size) {
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/* EOF */
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printf("hole #%d @ %ld, size=%jd\n",
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n, (intmax_t)hole, 0L);
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}
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close(fd);
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if (hole != st.st_size)
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errx(1, "No implicit hole at EOF");
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}
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