| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 139 |
| # |
| # Try to ENOSPC while expanding the refcntbt by CoWing every block |
| # of a file that eats the whole AG. |
| # |
| 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.* $testdir |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/reflink |
| |
| # real QA test starts here |
| # Below agsize (16384 * $blksz) is too small for a large fs, and it's not |
| # necessary to test on large fs |
| _require_no_large_scratch_dev |
| _require_scratch_reflink |
| _require_cp_reflink |
| |
| rm -f $seqres.full |
| |
| _scratch_mkfs >/dev/null 2>&1 |
| _scratch_mount |
| blksz=$(_get_file_block_size $SCRATCH_MNT) |
| _scratch_unmount |
| |
| echo "Format and mount" |
| _scratch_mkfs -d agsize=$((16384 * $blksz)) > $seqres.full 2>&1 |
| _scratch_mount >> $seqres.full 2>&1 |
| |
| testdir=$SCRATCH_MNT/test-$seq |
| mkdir $testdir |
| |
| echo "Create the original files" |
| sz=$((20480 * $blksz)) |
| _pwrite_byte 0x61 0 $sz $testdir/file1 >> $seqres.full |
| _cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "CoW every other block" |
| _pwrite_byte 0x62 0 $sz $testdir/file1 >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "Compare files" |
| od -t x1 $testdir/file1 | _filter_od |
| od -t x1 $testdir/file2 | _filter_od |
| #filefrag -v $testdir/file1 $testdir/file2 |
| |
| # success, all done |
| status=0 |
| exit |