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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
#
# FS QA Test No. 216
#
# log size mkfs test - ensure the log size scaling works for small filesystems
#
. ./common/preamble
_begin_fstest log metadata auto quick
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs xfs
_require_scratch
_scratch_mkfs_xfs >/dev/null 2>&1
_scratch_mount
_require_loop
LOOP_DEV=$SCRATCH_MNT/test_fs
LOOP_MNT=$SCRATCH_MNT/test_fs_dir
loop_mkfs_opts=
$MKFS_XFS_PROG 2>&1 | grep -q rmapbt && \
loop_mkfs_opts="$loop_mkfs_opts -m rmapbt=0"
$MKFS_XFS_PROG 2>&1 | grep -q reflink && \
loop_mkfs_opts="$loop_mkfs_opts -m reflink=0"
# Decide which golden output file we're using. Starting with mkfs.xfs 5.15,
# the default minimum log size was raised to 64MB for all cases, so we detect
# that by test-formatting with a 512M filesystem. This is a little handwavy,
# but it's the best we can do.
choose_golden_output() {
local seqfull=$1
local file=$2
if $MKFS_XFS_PROG -f -b size=4096 -l version=2 \
-d name=$file,size=512m $loop_mkfs_opts | \
grep -q 'log.*blocks=16384'; then
_link_out_file_named $seqfull.out "64mblog"
else
_link_out_file_named $seqfull.out "classic"
fi
}
_do_mkfs()
{
for i in $*; do
echo -n "fssize=${i}g "
$MKFS_XFS_PROG -f -b size=4096 -l version=2 \
-d name=$LOOP_DEV,size=${i}g $loop_mkfs_opts |grep log
mount -o loop -t xfs $LOOP_DEV $LOOP_MNT
echo "test write" > $LOOP_MNT/test
umount $LOOP_MNT > /dev/null 2>&1
done
}
# make large holey file
$XFS_IO_PROG -f -c "truncate 256g" $LOOP_DEV
choose_golden_output $0 $LOOP_DEV
#make loopback mount dir
mkdir $LOOP_MNT
# walk over standard sizes (up to 256GB)
_do_mkfs 1 2 4 8 16 32 64 128 256
status=0
exit
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