mirror of
https://github.com/linux-apfs/apfstests.git
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Darrick J. Wong
7e98d41a6e
Refactor every test in the entire test suite to use the new boilerplate functions. This also migrates all the test group information into the test files. This patch has been autogenerated via the command: ./tools/convert-group btrfs ceph cifs ext4 f2fs generic nfs ocfs2 overlay perf shared udf xfs Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Allison Henderson <allison.henderson@oracle.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
137 lines
4.9 KiB
Bash
Executable File
137 lines
4.9 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 421
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#
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# Test SEEK_HOLE/SEEK_DATA into a region that is marked CoW'd for
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# speculative preallocation in the CoW fork and isn't backed by
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# data fork extents.
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#
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# - Set a huge cowextsize hint.
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# - Create a file "DD " (two data blocks, six hole blocks)
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# - Reflink copy this file to a second file.
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# - dio write to the first block of the second file to create a single
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# large CoW reservation covering the whole file.
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# - dio write to block 3, which should be a hole in the data fork.
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# - Display the SEEK_HOLE/SEEK_DATA info for the second file to confirm
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# that we see the data in blocks 0-1, the hole at block 2, the data
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# at block 3, and the hole for the rest of the file.
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#
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# Basically we want to create a file with the following data/CoW forks:
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#
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# data: DD------
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# cow: dddddddd
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# ^--^---------- these blocks are dirty
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#
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# And then check that SEEK_HOLE and SEEK_DATA actually find that second
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# dirty block even though we've never had a data fork extent mapping the
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# second dirty block. We need the huge cowextsize so that the hole
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# area receives preallocation in the CoW fork.
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#
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. ./common/preamble
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_begin_fstest auto quick clone punch seek
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# Import common functions.
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. ./common/filter
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. ./common/reflink
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# real QA test starts here
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_supported_fs xfs
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_require_scratch_reflink
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_require_cp_reflink
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_require_xfs_io_command "cowextsize"
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_require_xfs_io_command "fpunch"
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echo "Format and mount"
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_scratch_mkfs > $seqres.full 2>&1
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_scratch_mount >> $seqres.full 2>&1
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testdir=$SCRATCH_MNT/test-$seq
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mkdir $testdir
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blksz=65536
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nr=8
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filesize=$((blksz * nr))
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echo "Create the original files"
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$XFS_IO_PROG -c "cowextsize" $testdir >> $seqres.full
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$XFS_IO_PROG -c "cowextsize $filesize" $testdir >> $seqres.full
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$XFS_IO_PROG -c "cowextsize" $testdir >> $seqres.full
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$XFS_IO_PROG -f -c "pwrite -S 0x61 0 $((blksz * 2))" -c "truncate $filesize" -c "fpunch $((blksz * 2)) $((blksz * (nr - 2) ))" $testdir/file1 >> $seqres.full
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_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
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$XFS_IO_PROG -f -c "pwrite -S 0 0 $filesize" -c "pwrite -S 0x61 0 $((blksz * 2))" $testdir/file3 >> $seqres.full
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_scratch_cycle_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file2 | _filter_scratch
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md5sum $testdir/file3 | _filter_scratch
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# drop caches to make sure the page cache for the unwritten extents is clean
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echo 1 > /proc/sys/vm/drop_caches
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echo "CoW the shared part then write into the empty part" | tee -a $seqres.full
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$XFS_IO_PROG -c "cowextsize" $testdir/file1 >> $seqres.full
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$XFS_IO_PROG -c "cowextsize" $testdir/file2 >> $seqres.full
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$XFS_IO_PROG -d -c "pwrite -S 0x63 0 $blksz" $testdir/file2 >> $seqres.full
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$XFS_IO_PROG -d -c "pwrite -S 0x63 $((blksz * 3)) $blksz" $testdir/file2 >> $seqres.full
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$XFS_IO_PROG -d -c "pwrite -S 0x63 0 $blksz" $testdir/file3 >> $seqres.full
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$XFS_IO_PROG -d -c "pwrite -S 0x63 $((blksz * 3)) $blksz" $testdir/file3 >> $seqres.full
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file1 >> $seqres.full 2>&1
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file2 >> $seqres.full 2>&1
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file3 >> $seqres.full 2>&1
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echo "Seek holes and data in file1"
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$XFS_IO_PROG -c "seek -a -r 0" $testdir/file1
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echo "Seek holes and data in file2"
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$XFS_IO_PROG -c "seek -a -r 0" $testdir/file2
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file2 | _filter_scratch
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md5sum $testdir/file3 | _filter_scratch
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# drop caches to make sure the page cache for the unwritten extents is clean
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echo 1 > /proc/sys/vm/drop_caches
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echo "sync filesystem" | tee -a $seqres.full
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sync
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file1 >> $seqres.full 2>&1
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file2 >> $seqres.full 2>&1
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file3 >> $seqres.full 2>&1
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echo "Seek holes and data in file1"
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$XFS_IO_PROG -c "seek -a -r 0" $testdir/file1
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echo "Seek holes and data in file2"
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$XFS_IO_PROG -c "seek -a -r 0" $testdir/file2
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file2 | _filter_scratch
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md5sum $testdir/file3 | _filter_scratch
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# drop caches to make sure the page cache for the unwritten extents is clean
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echo 1 > /proc/sys/vm/drop_caches
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echo "Remount" | tee -a $seqres.full
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_scratch_cycle_mount
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file1 >> $seqres.full 2>&1
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file2 >> $seqres.full 2>&1
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$XFS_IO_PROG -c "bmap -ev" -c "bmap -cv" $testdir/file3 >> $seqres.full 2>&1
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echo "Seek holes and data in file1"
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$XFS_IO_PROG -c "seek -a -r 0" $testdir/file1
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echo "Seek holes and data in file2"
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$XFS_IO_PROG -c "seek -a -r 0" $testdir/file2
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file2 | _filter_scratch
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md5sum $testdir/file3 | _filter_scratch
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# success, all done
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status=0
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exit
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