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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
#
# FS QA Test No. 008
#
# randholes test
#
. ./common/preamble
_begin_fstest rw ioctl auto quick
status=0 # success is the default!
blksize=$(_get_file_block_size "$TEST_DIR")
# Override the default cleanup function.
_cleanup()
{
rm -f $tmp.*
rm -rf $TEST_DIR/randholes.$$.*
}
_filter()
{
sed -e "s/-b $blksize/-b BLKSIZE/g" \
-e "s/-l .* -c/-l FSIZE -c/g"
}
# Import common functions.
. ./common/filter
_do_test()
{
_n="$1"
_holes="$2"
_param="$3"
out=$TEST_DIR/randholes.$$.$_n
echo ""
echo "randholes.$_n : $_param" | _filter
echo "------------------------------------------"
if $here/src/randholes $_param $out >$tmp.out
then
# only check if we're not allocating in huge chunks (extsz flag)
if _test_inode_flag extsize $out || _test_inode_flag realtime $out
then
echo "holes is in range"
else
# quick check - how many holes did we get?
count=`xfs_bmap $out | grep -E -c ': hole'`
# blocks can end up adjacent, therefore number of holes varies
_within_tolerance "holes" $count $_holes 10% -v
fi
else
echo " randholes returned $? - see $seq.out.full"
echo "--------------------------------------" >>$seqres.full
echo "$_n - output from randholes:" >>$seqres.full
echo "--------------------------------------" >>$seqres.full
cat $tmp.out >>$seqres.full
echo "--------------------------------------" >>$seqres.full
echo "$_n - output from bmap:" >>$seqres.full
echo "--------------------------------------" >>$seqres.full
xfs_bmap -vvv $out >>$seqres.full
status=1
fi
}
# real QA test starts here
_supported_fs xfs
_require_test
# Note on special numbers here.
#
# We are trying to create roughly 50 or 100 holes in a file
# using random writes. Assuming a good distribution of 50 writes
# in a file, the file only needs to be 3-4x the size of the write
# size muliplied by the number of writes. Hence we use 200 * blksize
# for files we want 50 holes in and 400 * blksize for files we want
# 100 holes in. This keeps the runtime down as low as possible.
#
_do_test 1 50 "-l `expr 200 \* $blksize` -c 50 -b $blksize"
_do_test 2 100 "-l `expr 400 \* $blksize` -c 100 -b $blksize"
_do_test 3 100 "-l `expr 400 \* $blksize` -c 100 -b 512" # test partial blocks
# rinse, lather, repeat for direct IO
_do_test 4 50 "-d -l `expr 200 \* $blksize` -c 50 -b $blksize"
_do_test 5 100 "-d -l `expr 400 \* $blksize` -c 100 -b $blksize"
# todo: realtime.
# success, all done
exit
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