| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test btrfs/193 |
| # |
| # Test if btrfs is going to leak qgroup reserved data space when |
| # falloc on multiple holes fails. |
| # The fix is titled: |
| # "btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space" |
| # |
| . ./common/preamble |
| _begin_fstest auto quick qgroup enospc limit prealloc |
| |
| . ./common/filter |
| |
| _require_scratch |
| _require_xfs_io_command falloc |
| |
| _scratch_mkfs > /dev/null |
| _scratch_mount |
| |
| $BTRFS_UTIL_PROG quota enable "$SCRATCH_MNT" > /dev/null |
| _qgroup_rescan "$SCRATCH_MNT" > /dev/null |
| $BTRFS_UTIL_PROG qgroup limit -e 256M "$SCRATCH_MNT" |
| |
| # Create a file with the following layout: |
| # 0 128M 256M 384M |
| # | Hole |4K| Hole |4K| Hole | |
| # The total hole size will be 384M - 8k |
| truncate -s 384m "$SCRATCH_MNT/file" |
| $XFS_IO_PROG -c "pwrite 128m 4k" -c "pwrite 256m 4k" \ |
| "$SCRATCH_MNT/file" | _filter_xfs_io |
| |
| # Falloc 0~384M range, it's going to fail due to the qgroup limit |
| $XFS_IO_PROG -c "falloc 0 384m" "$SCRATCH_MNT/file" | _filter_xfs_io_error |
| rm -f "$SCRATCH_MNT/file" |
| |
| # Ensure above delete reaches disk and free some space |
| sync |
| |
| # We should be able to write at least 3/4 of the limit |
| $XFS_IO_PROG -f -c "pwrite 0 192m" "$SCRATCH_MNT/file" | _filter_xfs_io |
| |
| # success, all done |
| status=0 |
| exit |
