2 # Common btrfs specific functions
10 $BTRFS_UTIL_PROG sub list $mnt | grep $name | awk '{ print $2 }'
13 # _require_btrfs_command <command> [<subcommand>|<option>]
14 # We check for btrfs and (optionally) features of the btrfs command
15 # It can both subfunction like "inspect-internal dump-tree" and
16 # options like "check --qgroup-report"
17 _require_btrfs_command()
23 _require_command "$BTRFS_UTIL_PROG" btrfs
27 $BTRFS_UTIL_PROG $cmd --help &> /dev/null
28 [ $? -eq 0 ] || _notrun "$BTRFS_UTIL_PROG too old (must support $cmd)"
30 test -z "$param" && return
32 # If $param is an option, replace leading "-"s for grep
33 if [ ${param:0:1} == "-" ]; then
34 safe_param=$(echo $param | sed 's/^-*//')
35 $BTRFS_UTIL_PROG $cmd --help | grep -wq $safe_param || \
36 _notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param)"
40 $BTRFS_UTIL_PROG $cmd $param --help &> /dev/null
41 [ $? -eq 0 ] || _notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param)"
44 # Require extra check on btrfs qgroup numbers
45 _require_btrfs_qgroup_report()
47 _require_btrfs_command check --qgroup-report
48 touch ${RESULT_DIR}/require_scratch.require_qgroup_report
51 _run_btrfs_util_prog()
53 run_check $BTRFS_UTIL_PROG $*
56 _require_btrfs_send_stream_version()
58 $BTRFS_UTIL_PROG send 2>&1 | \
59 grep '^[ \t]*\-\-stream\-version <version>' > /dev/null 2>&1
61 _notrun "Missing btrfs-progs send --stream-version command line option, skipped this test"
64 # test if btrfs kernel supports send stream version 2
65 if [ ! -f /sys/fs/btrfs/send/stream_version ]; then
66 _notrun "Missing btrfs kernel patch for send stream version 2, skipped this test"
70 _require_btrfs_mkfs_feature()
73 echo "Missing feature name argument for _require_btrfs_mkfs_feature"
77 $MKFS_BTRFS_PROG -O list-all 2>&1 | \
78 grep '^[ \t]*'"$feat"'\b' > /dev/null 2>&1
80 _notrun "Feature $feat not supported in the available version of mkfs.btrfs"
83 _require_btrfs_fs_feature()
86 echo "Missing feature name argument for _require_btrfs_fs_feature"
90 modprobe btrfs > /dev/null 2>&1
91 [ -e /sys/fs/btrfs/features/$feat ] || \
92 _notrun "Feature $feat not supported by the available btrfs version"
95 _check_btrfs_filesystem()
99 # If type is set, we're mounted
100 type=`_fs_type $device`
103 if [ "$type" = "$FSTYP" ]; then
105 mountpoint=`_umount_or_remount_ro $device`
108 if [ -f ${RESULT_DIR}/require_scratch.require_qgroup_report ]; then
109 $BTRFS_UTIL_PROG check $device --qgroup-report > $tmp.qgroup_report 2>&1
110 if grep -qE "Counts for qgroup.*are different" $tmp.qgroup_report ; then
111 echo "_check_btrfs_filesystem: filesystem on $device has wrong qgroup numbers (see $seqres.full)"
112 echo "_check_btrfs_filesystem: filesystem on $device has wrong qgroup numbers" \
114 echo "*** qgroup_report.$FSTYP output ***" >>$seqres.full
115 cat $tmp.qgroup_report >>$seqres.full
116 echo "*** qgroup_report.$FSTYP output ***" >>$seqres.full
118 rm -f $tmp.qgroup_report
121 $BTRFS_UTIL_PROG check $device >$tmp.fsck 2>&1
122 if [ $? -ne 0 ]; then
123 echo "_check_btrfs_filesystem: filesystem on $device is inconsistent (see $seqres.full)"
125 echo "_check_btrfs_filesystem: filesystem on $device is inconsistent" >>$seqres.full
126 echo "*** fsck.$FSTYP output ***" >>$seqres.full
127 cat $tmp.fsck >>$seqres.full
128 echo "*** end fsck.$FSTYP output" >>$seqres.full
134 if [ $ok -eq 0 ]; then
135 echo "*** mount output ***" >>$seqres.full
136 _mount >>$seqres.full
137 echo "*** end mount output" >>$seqres.full
138 elif [ "$type" = "$FSTYP" ]; then
140 _mount_or_remount_rw "$MOUNT_OPTIONS" $device $mountpoint
144 if [ $ok -eq 0 ]; then
146 if [ "$iam" != "check" ]; then
155 _require_btrfs_dev_del_by_devid()
157 $BTRFS_UTIL_PROG device delete --help | egrep devid > /dev/null 2>&1
158 [ $? -eq 0 ] || _notrun "$BTRFS_UTIL_PROG too old "\
159 "(must support 'btrfs device delete <devid> /<mnt>')"
162 # get btrfs profile configs being tested
164 # A set of pre-set profile configs are exported via _btrfs_profile_configs
165 # array. Default configs can be overridden by setting BTRFS_PROFILE_CONFIGS
166 # var in the format "metadata_profile:data_profile", multiple configs can be
167 # seperated by space, e.g.
168 # export BTRFS_PROFILE_CONFIGS="raid0:raid0 raid1:raid1 dup:single"
169 _btrfs_get_profile_configs()
171 if [ "$FSTYP" != "btrfs" ]; then
175 if [ -z "$BTRFS_PROFILE_CONFIGS" ]; then
176 # Default configurations to test.
188 # User-provided configurations.
189 local configs=(${BTRFS_PROFILE_CONFIGS[@]})
192 _btrfs_profile_configs=()
193 for cfg in "${configs[@]}"; do
195 local profiles=(${cfg/:/ })
196 if [ "$1" == "replace" ]; then
197 # We can't do replace with these profiles because they
198 # imply only one device ($SCRATCH_DEV), and we need to
199 # keep $SCRATCH_DEV around for _scratch_mount
200 # and _check_scratch_fs.
204 elif [ "$1" == "replace-missing" ]; then
205 # We can't replace missing devices with these profiles
206 # because there isn't enough redundancy.
215 for unsupp in "${unsupported[@]}"; do
216 if [ "${profiles[0]}" == "$unsupp" -o "${profiles[1]}" == "$unsupp" ]; then
217 if [ -z "$BTRFS_PROFILE_CONFIGS" ]; then
218 # For the default config, just omit it.
221 # For user-provided config, don't run the test.
222 _notrun "Profile $unsupp not supported for $1"
226 if "$supported"; then
227 _btrfs_profile_configs+=("-m ${profiles[0]} -d ${profiles[1]}")
230 export _btrfs_profile_configs
233 # stress btrfs by running balance operation in a loop
234 _btrfs_stress_balance()
238 $BTRFS_UTIL_PROG balance start $options
242 # stress btrfs by creating/mounting/umounting/deleting subvolume in a loop
243 _btrfs_stress_subvolume()
252 while [ ! -e $stop_file ]; do
253 $BTRFS_UTIL_PROG subvolume create $btrfs_mnt/$subvol_name
254 $MOUNT_PROG -o subvol=$subvol_name $btrfs_dev $subvol_mnt
255 $UMOUNT_PROG $subvol_mnt
256 $BTRFS_UTIL_PROG subvolume delete $btrfs_mnt/$subvol_name
260 # stress btrfs by running scrub in a loop
261 _btrfs_stress_scrub()
265 $BTRFS_UTIL_PROG scrub start -B $btrfs_mnt
269 # stress btrfs by defragmenting every file/dir in a loop and compress file
270 # contents while defragmenting if second argument is not "nocompress"
271 _btrfs_stress_defrag()
277 if [ "$compress" == "nocompress" ]; then
278 find $btrfs_mnt \( -type f -o -type d \) -exec \
279 $BTRFS_UTIL_PROG filesystem defrag {} \;
281 find $btrfs_mnt \( -type f -o -type d \) -exec \
282 $BTRFS_UTIL_PROG filesystem defrag -clzo {} \;
283 find $btrfs_mnt \( -type f -o -type d \) -exec \
284 $BTRFS_UTIL_PROG filesystem defrag -czlib {} \;
289 # stress btrfs by remounting it with different compression algorithms in a loop
290 # run this with fsstress running at background could exercise the compression
291 # code path and ensure no race when switching compression algorithm with constant
293 _btrfs_stress_remount_compress()
297 for algo in no zlib lzo; do
298 $MOUNT_PROG -o remount,compress=$algo $btrfs_mnt
303 # stress btrfs by replacing devices in a loop
304 # Note that at least 3 devices are needed in SCRATCH_DEV_POOL and the last
305 # device should be free(not used by btrfs)
306 _btrfs_stress_replace()
310 # The device number in SCRATCH_DEV_POOL should be at least 3,
311 # one is SCRATCH_DEV, one is to be replaced, one is free device
312 # we won't replace SCRATCH_DEV, see below for reason
313 if [ "`echo $SCRATCH_DEV_POOL | wc -w`" -lt 3 ]; then
314 echo "_btrfs_stress_replace requires at least 3 devices in SCRATCH_DEV_POOL"
318 # take the last device as the first free_dev
319 local free_dev="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $NF}'`"
321 # free_dev should be really free
322 if $BTRFS_UTIL_PROG filesystem show $btrfs_mnt | grep -q "$free_dev"; then
323 echo "_btrfs_stress_replace: $free_dev is used by btrfs"
327 # dev_pool is device list being currently used by btrfs (excluding SCRATCH_DEV)
328 # and can be replaced. We don't replace SCRATCH_DEV because it will be used in
329 # _scratch_mount and _check_scratch_fs etc.
330 local dev_pool=`echo $SCRATCH_DEV_POOL | sed -e "s# *$SCRATCH_DEV *##" \
331 -e "s# *$free_dev *##"`
333 # set the first device in dev_pool as the first src_dev to be replaced
334 local src_dev=`echo $dev_pool | $AWK_PROG '{print $1}'`
336 echo "dev_pool=$dev_pool"
337 echo "free_dev=$free_dev, src_dev=$src_dev"
339 echo "Replacing $src_dev with $free_dev"
340 $BTRFS_UTIL_PROG replace start -fB $src_dev $free_dev $btrfs_mnt
341 if [ $? -ne 0 ]; then
342 # don't update src_dev and free_dev if replace failed
345 dev_pool="$dev_pool $free_dev"
346 dev_pool=`echo $dev_pool | sed -e "s# *$src_dev *##"`
348 src_dev=`echo $dev_pool | $AWK_PROG '{print $1}'`
352 # find the right option to force output in bytes, older versions of btrfs-progs
353 # print that by default, newer print human readable numbers with unit suffix
354 _btrfs_qgroup_units()
356 $BTRFS_UTIL_PROG qgroup show --help 2>&1 | grep -q -- --raw && echo "--raw"
359 _require_btrfs_loadable()
361 modprobe -r btrfs || _notrun "btrfs unloadable"
362 modprobe btrfs || _notrun "Can't load btrfs"
367 modprobe -r btrfs || _fail "btrfs unload failed"
368 modprobe btrfs || _fail "btrfs load failed"