blob: 4e8dac42a16a9a78d0af2f4c7b3195c3ac0de540 [file] [log] [blame]
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Google, Inc. All Rights Reserved.
#
# FS QA Test ext4/032
#
# Ext4 online resize tests of small and crucial resizes with bigalloc
# feature.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
BLK_SIZ=4096
CLUSTER_SIZ=4096
IMG_FILE=$SCRATCH_MNT/$seq.fs
IMG_MNT=$SCRATCH_MNT/$seq.mnt
## Num clusters to blocks.
c2b()
{
local clusters=$1
echo $(($clusters * $CLUSTER_SIZ / $BLK_SIZ))
}
ext4_online_resize()
{
## sizes are in number of blocks.
local original_size=$1
local final_size=$2
local check_if_supported=${3:-0}
## Start with a clean image file.
echo "" > ${IMG_FILE}
echo "+++ truncate image file to $final_size" | \
tee -a $seqres.full
$XFS_IO_PROG -f -c "truncate $(($final_size * $BLK_SIZ))" ${IMG_FILE}
LOOP_DEVICE=`_create_loop_device $IMG_FILE`
echo "+++ create fs on image file $original_size" | \
tee -a $seqres.full
${MKFS_PROG} -t ${FSTYP} -F -O bigalloc,resize_inode -C $CLUSTER_SIZ \
-b $BLK_SIZ ${LOOP_DEVICE} $original_size >> \
$seqres.full 2>&1 || _fail "mkfs failed"
echo "+++ mount image file" | tee -a $seqres.full
$MOUNT_PROG -t ${FSTYP} ${LOOP_DEVICE} ${IMG_MNT} > \
/dev/null 2>&1 || _fail "mount failed"
echo "+++ resize fs to $final_size" | tee -a $seqres.full
$RESIZE2FS_PROG -f ${LOOP_DEVICE} $final_size >$tmp.resize2fs 2>&1
if [ $? -ne 0 ]; then
if [ $check_if_supported -eq 1 ]; then
grep -iq "operation not supported" $tmp.resize2fs \
&& _notrun "online resizing not supported with bigalloc"
fi
_fail "resize failed"
fi
cat $tmp.resize2fs >> $seqres.full
echo "+++ umount fs" | tee -a $seqres.full
$UMOUNT_PROG ${IMG_MNT}
echo "+++ check fs" | tee -a $seqres.full
_check_generic_filesystem $LOOP_DEVICE >> $seqres.full 2>&1 || \
_fail "fsck should not fail"
_destroy_loop_device $LOOP_DEVICE && LOOP_DEVICE=
}
_cleanup()
{
cd /
[ -n "$LOOP_DEVICE" ] && _destroy_loop_device $LOOP_DEVICE > /dev/null 2>&1
rm -f $tmp.*
$UMOUNT_PROG ${IMG_MNT} > /dev/null 2>&1
rm -f ${IMG_FILE} > /dev/null 2>&1
}
# get standard environment and checks
. ./common/rc
# remove previous $seqres.full before test
rm -f $seqres.full
# real QA test starts here
_supported_fs ext4
_require_loop
_require_scratch
# We use resize_inode to make sure that block group descriptor table
# can be extended.
_require_scratch_ext4_feature "bigalloc,resize_inode"
_require_command "$RESIZE2FS_PROG" resize2fs
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount
rm -f $seqres.full
mkdir -p $IMG_MNT || _fail "cannot create loopback mount point"
# Check if online resizing with bigalloc is supported by the kernel
ext4_online_resize 4096 8192 1
## We perform resizing to various multiples of block group sizes to
## ensure that we cover maximum edge cases in the kernel code.
for CLUSTER_SIZ in 4096 16384 65536; do
echo "++ set cluster size to $CLUSTER_SIZ" | tee -a $seqres.full
##
## Extend last group tests
##
## Extending a 1/2 block group to a 2/3 block group.
ext4_online_resize $(c2b 16384) $(c2b 24576)
## Extending a 2/3rd block group to one cluster less than a
## full block group.
ext4_online_resize $(c2b 24576) $(c2b 32767)
## Extending a 2/3rd block group to a full block group.
ext4_online_resize $(c2b 24576) $(c2b 32768)
##
## Extend last group and add more block groups.
##
## Extending a 2/3rd block group to 2 block groups.
ext4_online_resize $(c2b 24576) $(c2b 65536)
## Extending a 2/3rd block group to 15 block groups and one
## cluster.
ext4_online_resize $(c2b 24576) $(c2b 491521)
## Extending a 2/3rd block group to 15 and a half block groups.
ext4_online_resize $(c2b 24576) $(c2b 507904)
## Extending a 2/3rd block group to 16 block groups.
ext4_online_resize $(c2b 24576) $(c2b 524288)
## Extending a 2/3rd block group to 160 block groups.
ext4_online_resize $(c2b 24576) $(c2b 5242880)
##
## Convert to meta_bg.
##
## Extending a 2/3rd block group to 1280 block groups.
ext4_online_resize $(c2b 24576) $(c2b 41943040)
done
status=0
exit