| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test No. btrfs/122 |
| # |
| # Test that qgroup counts are valid after snapshot creation. This has |
| # been broken in btrfs since Linux v4.1 |
| # |
| . ./common/preamble |
| _begin_fstest auto quick snapshot qgroup |
| |
| . ./common/filter |
| |
| _require_scratch |
| _require_btrfs_qgroup_report |
| |
| _scratch_mkfs >> $seqres.full |
| _scratch_mount |
| _btrfs quota enable $SCRATCH_MNT |
| |
| mkdir "$SCRATCH_MNT/snaps" |
| |
| # First make some simple snapshots - the bug was initially reproduced like this |
| _btrfs subvolume snapshot $SCRATCH_MNT "$SCRATCH_MNT/snaps/empty1" |
| _btrfs subvolume snapshot $SCRATCH_MNT "$SCRATCH_MNT/snaps/empty2" |
| |
| # This forces the fs tree out past level 0, adding at least one tree |
| # block which must be properly accounted for when we make our next |
| # snapshots. |
| mkdir "$SCRATCH_MNT/data" |
| for i in `seq 0 640`; do |
| $XFS_IO_PROG -f -c "pwrite 0 1M" "$SCRATCH_MNT/data/file$i" > /dev/null 2>&1 |
| done |
| |
| # Snapshot twice. |
| _btrfs subvolume snapshot $SCRATCH_MNT "$SCRATCH_MNT/snaps/snap1" |
| _btrfs subvolume snapshot $SCRATCH_MNT "$SCRATCH_MNT/snaps/snap2" |
| |
| _scratch_unmount |
| |
| # qgroup will be checked by fstest at _check_scratch_fs() |
| status=0 |
| exit |
