2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved.
7 # Ensure that we don't leak quota inodes when CoW recovery fails.
9 # Use xfs_fsr to inject bmap redo items in the log for a linked file and
10 # an unlinked file; enable quota so that we always mount with the quota
11 # inodes; and then corrupt the refcount btree to ensure that the CoW
12 # garbage collection (and therefore the mount) fail.
14 # On a subsequent mount attempt, we should be able to replay the bmap
15 # items for the linked and unlinked files without prematurely truncating
16 # the unlinked inode and without leaking the linked inode, and we should
17 # be able to release the quota inodes when we're aborting the mount. We
18 # also should not leak dquots.
21 seqres="$RESULT_DIR/$seq"
22 echo "QA output created by $seq"
26 status=1 # failure is the default!
27 trap "_cleanup; exit \$status" 0 1 2 3 15
35 # get standard environment, filters and checks
44 # real QA test starts here
47 _require_loadable_fs_module "xfs"
49 _require_scratch_reflink
51 _require_command "$XFS_FSR_PROG" "xfs_fsr"
52 _require_xfs_io_error_injection "bmap_finish_one"
53 _require_xfs_scratch_rmapbt
57 echo "Format and mount"
58 _scratch_mkfs > "$seqres.full" 2>&1
59 _scratch_mount -o noquota >> "$seqres.full" 2>&1
61 testdir="$SCRATCH_MNT/test-$seq"
66 echo "Create a many-block file"
67 _pwrite_byte 0x62 0 $((blksz * blks)) $testdir/file1 >> $seqres.full
68 _pwrite_byte 0x63 0 $blksz $testdir/file2 >> $seqres.full
69 _reflink_range $testdir/file2 0 $testdir/file1 $blksz $blksz >> $seqres.full
70 _scratch_cycle_mount noquota
73 _scratch_inject_error "bmap_finish_one"
75 echo "Defrag the file"
76 $XFS_FSR_PROG -v -d $testdir/file1 >> $seqres.full 2>&1
78 echo "FS should be shut down, touch will fail"
79 touch $SCRATCH_MNT/badfs 2>&1 | _filter_scratch
81 echo "Remount to replay log" | tee /dev/ttyprintk
83 _scratch_dump_log >> $seqres.full
84 _scratch_xfs_db -x -c 'agf 0' -c 'addr refcntroot' -c 'fuzz -d recs[1].startblock ones' >> $seqres.full
85 _scratch_xfs_db -x -c 'agf 0' -c 'addr refcntroot' -c p >> $seqres.full
87 # Suddenly enable quota to test if we can leak the quotacheck dquots!
88 _try_scratch_mount -o quota >> $seqres.full 2>&1
89 _scratch_unmount 2> /dev/null
90 rm -f ${RESULT_DIR}/require_scratch
93 _reload_fs_module "xfs"