| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0-or-later |
| # Copyright (c) 2022 Oracle. All Rights Reserved. |
| # |
| # FS QA Test No. 709 |
| # |
| # Can we use exchangerange to make the quota accounting incorrect? |
| |
| . ./common/preamble |
| _begin_fstest auto quick fiexchange quota |
| |
| # Import common functions. |
| . ./common/filter |
| . ./common/quota |
| |
| _require_xfs_io_command exchangerange |
| _require_user |
| _require_nobody |
| _require_quota |
| _require_xfs_quota |
| _require_scratch |
| |
| # Format filesystem and set up quota limits |
| _scratch_mkfs > $seqres.full |
| _qmount_option "usrquota,grpquota" |
| _qmount >> $seqres.full |
| |
| # Set up initial files |
| $XFS_IO_PROG -f -c 'pwrite -S 0x58 0 256k -b 1m' $SCRATCH_MNT/a >> $seqres.full |
| chown $qa_user $SCRATCH_MNT/a |
| $XFS_IO_PROG -f -c 'pwrite -S 0x59 0 64k -b 64k' -c 'truncate 256k' $SCRATCH_MNT/b >> $seqres.full |
| chown nobody $SCRATCH_MNT/b |
| |
| echo before exchangerange >> $seqres.full |
| $XFS_QUOTA_PROG -x -c 'report -a' $SCRATCH_MNT >> $seqres.full |
| stat $SCRATCH_MNT/* >> $seqres.full |
| |
| # Now try to swap the extents of the two files. The command is allowed to |
| # fail with -EINVAL (since that's what the first kernel fix does) or succeed |
| # (because subsequent rewrites can handle quota). Whatever the outcome, the |
| # quota usage check at the end should never show a discrepancy. |
| $XFS_IO_PROG -c "exchangerange $SCRATCH_MNT/b" $SCRATCH_MNT/a &> $tmp.swap |
| cat $tmp.swap >> $seqres.full |
| grep -v 'Invalid argument' $tmp.swap |
| |
| echo after exchangerange >> $seqres.full |
| $XFS_QUOTA_PROG -x -c 'report -a' $SCRATCH_MNT >> $seqres.full |
| stat $SCRATCH_MNT/* >> $seqres.full |
| |
| _check_quota_usage |
| |
| # success, all done |
| status=0 |
| exit |
