mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Leah Rumancik
66734233e5
Test for commit "ext4: add ioctl EXT4_IOC_CHECKPOINT". Tests journal checkpointing and journal erasing via EXT4_IOC_CHECKPOINT with flag EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT set. Signed-off-by: Leah Rumancik <leah.rumancik@gmail.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
116 lines
3.0 KiB
Bash
Executable File
116 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2021 Google, Inc. All Rights Reserved.
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#
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# FS QA Test No. 050
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#
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# Test checkpoint and zeroout of journal via ioctl EXT4_IOC_CHECKPOINT
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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status=1 # failure is the default!
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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_supported_fs ext4
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_require_scratch
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_require_command "$DEBUGFS_PROG" debugfs
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checkpoint_journal=$here/src/checkpoint_journal
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_require_test_program "checkpoint_journal"
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# convert output from stat<journal_inode> to list of block numbers
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get_journal_extents() {
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inode_info=$($DEBUGFS_PROG $SCRATCH_DEV -R "stat <8>" 2>> $seqres.full)
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echo -e "\nJournal info:" >> $seqres.full
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echo "$inode_info" >> $seqres.full
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extents_line=$(echo "$inode_info" | awk '/EXTENTS:/{ print NR; exit }')
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get_extents=$(echo "$inode_info" | sed -n "$(($extents_line + 1))"p)
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# get just the physical block numbers
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get_extents=$(echo "$get_extents" | perl -pe 's|\(.*?\):||g' | sed -e 's/, /\n/g' | perl -pe 's|(\d+)-(\d+)|\1 \2|g')
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echo "$get_extents"
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}
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# checks all extents are zero'd out except for the superblock
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# arg 1: extents (output of get_journal_extents())
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check_extents() {
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echo -e "\nChecking extents:" >> $seqres.full
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echo "$1" >> $seqres.full
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super_block="true"
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echo "$1" | while IFS= read line; do
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start_block=$(echo $line | cut -f1 -d' ')
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end_block=$(echo $line | cut -f2 -d' ' -s)
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# if first block of journal, shouldn't be wiped
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if [ "$super_block" == "true" ]; then
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super_block="false"
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#if super block only block in this extent, skip extent
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if [ -z "$end_block" ]; then
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continue;
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fi
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start_block=$(($start_block + 1))
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fi
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if [ ! -z "$end_block" ]; then
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blocks=$(($end_block - $start_block + 1))
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else
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blocks=1
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fi
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check=$(od $SCRATCH_DEV --skip-bytes=$(($start_block * $blocksize)) --read-bytes=$(($blocks * $blocksize)) -An -v | sed -e 's/[0 \t\n\r]//g')
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[ ! -z "$check" ] && echo "error" && break
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done
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}
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testdir="${SCRATCH_MNT}/testdir"
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_scratch_mkfs_sized $((64 * 1024 * 1024)) >> $seqres.full 2>&1
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_require_metadata_journaling $SCRATCH_DEV
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_scratch_mount >> $seqres.full 2>&1
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blocksize=$(_get_block_size $SCRATCH_MNT)
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mkdir $testdir
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# check if ioctl present, skip test if not present
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$checkpoint_journal $SCRATCH_MNT --dry-run || _notrun "journal checkpoint ioctl not present on device"
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# create some files to add some entries to journal
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for i in {1..100}; do
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echo > $testdir/$i
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done
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# make sure these files get to the journal
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sync --file-system $testdir/1
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# call ioctl to checkpoint and zero-fill journal blocks
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$checkpoint_journal $SCRATCH_MNT --erase=zeroout || _fail "ioctl returned error"
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extents=$(get_journal_extents)
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# check journal blocks zeroed out
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ret=$(check_extents "$extents")
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[ "$ret" = "error" ] && _fail "Journal was not zero-filled"
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_scratch_unmount >> $seqres.full 2>&1
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echo "Silence is golden"
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status=0
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exit
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