| #! /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 |