| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 175 |
| # |
| # See how well reflink handles reflinking the same block a million times. |
| # |
| 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 |
| |
| _cleanup() |
| { |
| cd / |
| rm -rf "$tmp".* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/attr |
| . ./common/reflink |
| |
| # real QA test starts here |
| _require_scratch_reflink |
| _require_cp_reflink |
| |
| rm -f "$seqres.full" |
| |
| echo "Format and mount" |
| _scratch_mkfs > "$seqres.full" 2>&1 |
| _scratch_mount >> "$seqres.full" 2>&1 |
| |
| testdir="$SCRATCH_MNT/test-$seq" |
| mkdir "$testdir" |
| |
| echo "Create a one block file" |
| blksz="$(_get_file_block_size $testdir)" |
| _pwrite_byte 0x61 0 $blksz "$testdir/file1" >> "$seqres.full" |
| |
| fnr=19 |
| echo "Create extents" |
| truncate -s $(( (2 ** i) * blksz)) "$testdir/file1" |
| for i in $(seq 0 $fnr); do |
| echo " ++ Reflink size $i, $((2 ** i)) blocks" >> "$seqres.full" |
| n=$(( (2 ** i) * blksz)) |
| _reflink_range "$testdir/file1" 0 "$testdir/file1" $n $n >> "$seqres.full" |
| done |
| _scratch_cycle_mount |
| |
| echo "Reflink the big file" |
| blks=$((2 ** (fnr + 1) )) |
| bytes=$((blks * blksz)) |
| echo "reflinking $blks blocks, $bytes bytes" >> "$seqres.full" |
| _reflink_range "$testdir/file1" 0 "$testdir/file2" 0 $bytes >> "$seqres.full" |
| |
| # success, all done |
| status=0 |
| exit |