mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
a860a167d8
fstests only supports Linux, so get rid of this unnecessary predicate. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
125 lines
3.8 KiB
Bash
Executable File
125 lines
3.8 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (c) 2019, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 587
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#
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# Regression test to ensure that dquots are attached to the inode when we're
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# performing unwritten extent conversion after a directio write and the extent
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# mapping btree splits. On an unpatched kernel, the quota accounting will be
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# become incorrect.
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#
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# This test accompanies the commit 2815a16d7ff623 "xfs: attach dquots and
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# reserve quota blocks during unwritten conversion".
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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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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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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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. ./common/quota
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# real QA test starts here
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_supported_fs generic
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_require_user
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_require_quota
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_require_xfs_io_command "falloc"
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_require_scratch
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rm -f $seqres.full
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cat > $tmp.awk << ENDL
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{
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if (\$1 == qa_user && \$2 != blocks)
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printf("%s: quota blocks %dKiB, expected %dKiB!\n", qa_user, \$2, blocks);
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}
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ENDL
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# Make sure that the quota blocks accounting for qa_user on the scratch fs
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# matches the stat blocks counter for the only file on the scratch fs that
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# is owned by qa_user.
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check_quota_accounting()
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{
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# repquota rounds the raw numbers up to the nearest 1k when reporting
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# space usage. xfs_io stat always reports space usage in 512b units,
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# so use an awk script to round this number up to the nearest 1k, just
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# like repquota does.
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$XFS_IO_PROG -c stat $testfile > $tmp.out
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cat $tmp.out >> $seqres.full
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local stat_blocks=$(grep 'stat.blocks' $tmp.out | \
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awk '{printf("%d\n", ($3 + 1) / 2);}')
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_report_quota_blocks $SCRATCH_MNT > $tmp.out
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cat $tmp.out >> $seqres.full
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$AWK_PROG -v qa_user=$qa_user -v blocks=$stat_blocks -f $tmp.awk $tmp.out
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}
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_scratch_mkfs > $seqres.full
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# This test must have user quota enabled
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_qmount_option usrquota
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_qmount >> $seqres.full
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testfile=$SCRATCH_MNT/test-$seq
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touch $testfile
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chown $qa_user $testfile
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# Preallocate a file with just enough space that when we write every other
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# block of the file, the extent mapping tree will expand to a two-block tree.
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# Each tree block has a 56-byte header, and each mapping consumes 16 bytes.
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meta_blksz=$(_get_block_size $SCRATCH_MNT)
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file_blksz=$(_get_file_block_size $SCRATCH_MNT)
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mappings_per_bmbt_block=$(( (meta_blksz - 56) / 16))
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extents_needed=$((mappings_per_bmbt_block * 2))
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sz=$((extents_needed * file_blksz))
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$XFS_IO_PROG -f -c "falloc 0 $sz" $testfile >> $seqres.full
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check_quota_accounting
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# Cycle the mount to detach dquots and expand the bmbt to a single block.
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_qmount >> $seqres.full
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for ((i = 0; i < mappings_per_bmbt_block; i += 2)); do
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offset=$((i * file_blksz))
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$XFS_IO_PROG -d -c "pwrite $offset $file_blksz" $testfile >> $seqres.full
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done
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check_quota_accounting
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# Cycle the mount to detach dquots and expand the bmbt to multiple blocks.
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# A buggy kernel will forget to attach the dquots before the bmbt split and
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# this will cause us to lose a block in the quota accounting.
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_qmount >> $seqres.full
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for ((i = mappings_per_bmbt_block; i < extents_needed; i += 2)); do
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offset=$((i * file_blksz))
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$XFS_IO_PROG -d -c "pwrite $offset $file_blksz" $testfile >> $seqres.full
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done
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check_quota_accounting
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# Remove the test file, which (if the quota accounting is incorrect) will
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# also trigger assertions when we try to free more blocks from the dquot than
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# were accounted to the dquot. Only do this if assertions aren't going to be
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# fatal, since the check_quota_accounting above should be enough to fail the
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# test when the kernel is buggy.
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bug_on_assert="/sys/fs/xfs/debug/bug_on_assert"
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if [ -f $bug_on_assert ] && grep -q "0" $bug_on_assert; then
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rm -f $testfile
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fi
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echo Silence is golden.
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# success, all done
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status=0
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exit
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