2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
5 # FS QA Test No. btrfs/128
7 # Test that, under a particular scenario, an incremental send operation does
8 # not leak memory (which used to emit a warning in dmesg/syslog).
11 seqres=$RESULT_DIR/$seq
12 echo "QA output created by $seq"
15 status=1 # failure is the default!
16 trap "_cleanup; exit \$status" 0 1 2 3 15
21 rm -fr $send_files_dir
25 # get standard environment, filters and checks
29 # real QA test starts here
36 send_files_dir=$TEST_DIR/btrfs-test-$seq
39 rm -fr $send_files_dir
42 _scratch_mkfs >>$seqres.full 2>&1
46 mkdir $SCRATCH_MNT/tmp
47 mkdir $SCRATCH_MNT/del
48 mv $SCRATCH_MNT/tmp $SCRATCH_MNT/del
49 mkdir $SCRATCH_MNT/a/c
50 mkdir $SCRATCH_MNT/del/x
51 mkdir $SCRATCH_MNT/del/y
53 # Filesystem looks like:
64 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
66 # It used to be that when attempting to issue an rmdir operation for inode 259,
67 # the kernel allocated an orphan_dir_info structure so that later after doing
68 # the delayed rename operation for inode 258 (which happened once inode 260 was
69 # renamed) it would check if it could finally issue a rmdir instruction for
70 # inode 259. If it couldn't, it would not release the previously allocated
71 # orphan_dir_info structure immediately. Instead it would only release it once
72 # it finished the send stream and it would emit a warning in dmesg/syslog.
74 mv $SCRATCH_MNT/a/c $SCRATCH_MNT
75 mv $SCRATCH_MNT/del/x $SCRATCH_MNT/a
76 mv $SCRATCH_MNT/del/y $SCRATCH_MNT/a
77 mv $SCRATCH_MNT/del/tmp $SCRATCH_MNT/c
78 rmdir $SCRATCH_MNT/del
80 # Filesystem now looks like:
90 _run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
92 run_check $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
93 run_check $FSSUM_PROG -A -f -w $send_files_dir/2.fssum \
94 -x $SCRATCH_MNT/mysnap2/mysnap1 $SCRATCH_MNT/mysnap2
96 _run_btrfs_util_prog send -f $send_files_dir/1.snap $SCRATCH_MNT/mysnap1
97 _run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \
100 # Now recreate the filesystem by receiving both send streams and verify we get
101 # the same content that the original filesystem had.
103 _scratch_mkfs >>$seqres.full 2>&1
106 _run_btrfs_util_prog receive -f $send_files_dir/1.snap $SCRATCH_MNT
107 run_check $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
108 _run_btrfs_util_prog receive -f $send_files_dir/2.snap $SCRATCH_MNT
109 run_check $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
111 echo "Silence is golden"