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
41 _require_scratch_nocheck
42 _require_dm_target flakey
44 # initialize scratch device
45 _scratch_mkfs_sized $fssize >> $seqres.full 2>&1
46 _require_metadata_journaling $SCRATCH_DEV
49 stat_opt='-c "blocks: %b size: %s inode: %i links: %h"'
54 # Using _scratch_mkfs instead of cleaning up the working directory,
55 # adds about 10 seconds of delay in total for the 37 tests.
59 rm -rf $(find $SCRATCH_MNT/* | grep -v "lost+found")
65 _flakey_drop_and_remount
68 after=`stat "$stat_opt" $1`
71 if [ "$before" != "$after" ] && [ $2 -ne 1 ]; then
72 echo "Before: $before"
77 _check_scratch_fs $FLAKEY_DEV
80 # create a hard link $2 to file $1, and fsync $3, followed by power-cut
84 local src=$SCRATCH_MNT/$1
85 local dest=$SCRATCH_MNT/$2
89 if [ "$3" == "./" ]; then
95 echo -ne "\n=== link $src $dest with fsync $fsync ===\n" | \
99 # Now execute the workload
100 # Create the directory in which the source and destination files
103 mkdir -p "${dest%/*}"
107 # If the file being persisted is a sibling, create it first
108 if [ ! -f $fsync ]; then
113 $XFS_IO_PROG -c "fsync" $fsync
115 if [ $sibling -ne 1 ]; then
116 before=`stat "$stat_opt" $src`
119 check_consistency $src $sibling
123 # create a hard link $2 to file $1, and sync, followed by power-cut
126 local src=$SCRATCH_MNT/$1
127 local dest=$SCRATCH_MNT/$2
130 echo -ne "\n=== link $src $dest with sync ===\n" | _filter_scratch
133 # now execute the workload
134 # Create the directory in which the source and destination files
137 mkdir -p "${dest%/*}"
141 before=`stat "$stat_opt" $src`
143 check_consistency $src 0
148 # Create different combinations to run the link test
149 # Group 0: Both files within root directory
150 file_names[0]="foo bar"
151 fsync_names[0]="./ foo bar"
153 # Group 1: Create hard link in a sub directory
154 file_names[1]="foo A/bar"
155 fsync_names[1]="./ foo bar A A/bar A/foo"
157 # Group 2: Create hard link in parent directory
158 file_names[2]="A/foo bar"
159 fsync_names[2]="./ foo bar A A/bar A/foo"
161 # Group 3: Both files within a directory other than root
162 file_names[3]="A/foo A/bar"
163 fsync_names[3]="./ A A/bar A/foo"
165 #Group 4: Exercise name reuse : Link file in sub-directory
166 file_names[4]="bar A/bar"
167 fsync_names[4]="./ foo bar A A/bar A/foo"
169 #Group 5: Exercise name reuse : Link file in parent directory
170 file_names[5]="A/bar bar"
171 fsync_names[5]="./ foo bar A A/bar A/foo"
173 for ((test_group = 0; test_group < 6; test_group++)); do
174 for file in ${fsync_names[$test_group]}; do
175 test_link_fsync ${file_names[$test_group]} $file
177 test_link_sync ${file_names[$test_group]}