| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2017 Oracle, Inc. All Rights Reserved. |
| # |
| # FS QA Test No. 414 |
| # |
| # Check that reflinking adjacent blocks in a file produces a single |
| # block mapping extent. |
| # |
| 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 7 15 |
| |
| _cleanup() |
| { |
| cd / |
| rm -rf $tmp.* |
| wait |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/reflink |
| |
| # real QA test starts here |
| _supported_fs generic |
| _require_scratch_reflink |
| _require_xfs_io_command "falloc" |
| _require_xfs_io_command "fiemap" |
| |
| echo "Format and mount" |
| _scratch_mkfs > $seqres.full 2>&1 |
| _scratch_mount >> $seqres.full 2>&1 |
| |
| testdir=$SCRATCH_MNT/test-$seq |
| mkdir $testdir |
| |
| blocks=32 |
| blksz=65536 |
| sz=$((blocks * blksz)) |
| |
| echo "Create the original files" |
| $XFS_IO_PROG -f -c "falloc 0 $sz" $testdir/file1 >> $seqres.full |
| _pwrite_byte 0x61 0 $sz $testdir/file1 >> $seqres.full |
| seq 0 $blksz $((sz - blksz)) | while read offset; do |
| _reflink_range $testdir/file1 $offset $testdir/file2 $offset $blksz >> $seqres.full |
| done |
| |
| echo "Compare files" |
| md5sum $testdir/file1 | _filter_scratch |
| md5sum $testdir/file2 | _filter_scratch |
| |
| echo "Check extent counts" |
| f1=$(_count_extents $testdir/file1) |
| f2=$(_count_extents $testdir/file2) |
| s1=$($XFS_IO_PROG -c 'fiemap -v' $testdir/file1 | awk '{print $5}' | grep -c '0x.*[2367aAbBfF]...$') |
| s2=$($XFS_IO_PROG -c 'fiemap -v' $testdir/file2 | awk '{print $5}' | grep -c '0x.*[2367aAbBfF]...$') |
| |
| # Did the fs combine the extent mappings when we made f2? |
| test $f1 -eq $f2 || echo "f1 ($f1) != f2 ($f2)" |
| test $s1 -eq $s2 || echo "s1 ($s1) != s2 ($s2)" |
| test $f1 -eq $s1 || echo "f1 ($f1) != s1 ($f1)" |
| test $f2 -eq $s2 || echo "f2 ($f2) != s2 ($f2)" |
| |
| _scratch_cycle_mount |
| |
| echo "Compare files after remounting" |
| md5sum $testdir/file1 | _filter_scratch |
| md5sum $testdir/file2 | _filter_scratch |
| |
| echo "Check extent counts" |
| f1=$(_count_extents $testdir/file1) |
| f2=$(_count_extents $testdir/file2) |
| s1=$($XFS_IO_PROG -c 'fiemap -v' $testdir/file1 | awk '{print $5}' | grep -c '0x.*[2367aAbBfF]...$') |
| s2=$($XFS_IO_PROG -c 'fiemap -v' $testdir/file2 | awk '{print $5}' | grep -c '0x.*[2367aAbBfF]...$') |
| |
| # Are the mappings still combined? |
| test $f1 -eq $f2 || echo "f1 ($f1) != f2 ($f2)" |
| test $s1 -eq $s2 || echo "s1 ($s1) != s2 ($s2)" |
| test $f1 -eq $s1 || echo "f1 ($f1) != s1 ($f1)" |
| test $f2 -eq $s2 || echo "f2 ($f2) != s2 ($f2)" |
| |
| # success, all done |
| status=0 |
| exit |