2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2018 The University of Texas at Austin. All Rights Reserved.
7 # Test case created by CrashMonkey
9 # Test if we create a hard link to a file and persist either of the files, all
13 seqres=$RESULT_DIR/$seq
14 echo "QA output created by $seq"
18 status=1 # failure is the default!
19 trap "_cleanup; exit \$status" 0 1 2 3 15
28 # get standard environment, filters and checks
34 fssize=$((2**20 * 256))
36 # remove previous $seqres.full before test
39 # real QA test starts here
42 _require_scratch_nocheck
43 _require_dm_target flakey
45 # initialize scratch device
46 _scratch_mkfs_sized $fssize >> $seqres.full 2>&1
47 _require_metadata_journaling $SCRATCH_DEV
50 stat_opt='-c "blocks: %b size: %s inode: %i links: %h"'
55 # Using _scratch_mkfs instead of cleaning up the working directory,
56 # adds about 10 seconds of delay in total for the 37 tests.
60 rm -rf $(find $SCRATCH_MNT/* | grep -v "lost+found")
66 _flakey_drop_and_remount
69 after=`stat "$stat_opt" $1`
72 if [ "$before" != "$after" ] && [ $2 -ne 1 ]; then
73 echo "Before: $before"
78 _check_scratch_fs $FLAKEY_DEV
81 # create a hard link $2 to file $1, and fsync $3, followed by power-cut
85 local src=$SCRATCH_MNT/$1
86 local dest=$SCRATCH_MNT/$2
90 if [ "$3" == "./" ]; then
96 echo -ne "\n=== link $src $dest with fsync $fsync ===\n" | \
100 # Now execute the workload
101 # Create the directory in which the source and destination files
104 mkdir -p "${dest%/*}"
108 # If the file being persisted is a sibling, create it first
109 if [ ! -f $fsync ]; then
114 $XFS_IO_PROG -c "fsync" $fsync
116 if [ $sibling -ne 1 ]; then
117 before=`stat "$stat_opt" $src`
120 check_consistency $src $sibling
124 # create a hard link $2 to file $1, and sync, followed by power-cut
127 local src=$SCRATCH_MNT/$1
128 local dest=$SCRATCH_MNT/$2
131 echo -ne "\n=== link $src $dest with sync ===\n" | _filter_scratch
134 # now execute the workload
135 # Create the directory in which the source and destination files
138 mkdir -p "${dest%/*}"
142 before=`stat "$stat_opt" $src`
144 check_consistency $src 0
149 # Create different combinations to run the link test
150 # Group 0: Both files within root directory
151 file_names[0]="foo bar"
152 fsync_names[0]="./ foo bar"
154 # Group 1: Create hard link in a sub directory
155 file_names[1]="foo A/bar"
156 fsync_names[1]="./ foo bar A A/bar A/foo"
158 # Group 2: Create hard link in parent directory
159 file_names[2]="A/foo bar"
160 fsync_names[2]="./ foo bar A A/bar A/foo"
162 # Group 3: Both files within a directory other than root
163 file_names[3]="A/foo A/bar"
164 fsync_names[3]="./ A A/bar A/foo"
166 #Group 4: Exercise name reuse : Link file in sub-directory
167 file_names[4]="bar A/bar"
168 fsync_names[4]="./ foo bar A A/bar A/foo"
170 #Group 5: Exercise name reuse : Link file in parent directory
171 file_names[5]="A/bar bar"
172 fsync_names[5]="./ foo bar A A/bar A/foo"
174 for ((test_group = 0; test_group < 6; test_group++)); do
175 for file in ${fsync_names[$test_group]}; do
176 test_link_fsync ${file_names[$test_group]} $file
178 test_link_sync ${file_names[$test_group]}