2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (C) 2013 STRATO. All rights reserved.
5 # FSQA Test No. btrfs/011
7 # Test of the btrfs replace operation.
9 # The amount of tests done depends on the number of devices in the
10 # SCRATCH_DEV_POOL. For full test coverage, at least 5 devices should
11 # be available (e.g. 5 partitions).
13 # The source and target devices for the replace operation are
14 # arbitrarily chosen out of SCRATCH_DEV_POOl. Since the target device
15 # mustn't be smaller than the source device, the requirement for this
16 # test is that all devices have _exactly_ the same size. If this is
17 # not the case, this test is not run.
19 # To check the filesystems after replacing a device, a scrub run is
20 # performed, a btrfsck run, and finally the filesystem is remounted.
23 seqres=$RESULT_DIR/$seq
24 echo "QA output created by $seq"
33 if [ $noise_pid -ne 0 ] && ps -p $noise_pid | grep -q $noise_pid; then
38 # we need this umount and couldn't rely on _require_scratch to umount
39 # it from next test, because we would replace SCRATCH_DEV, which is
40 # needed by _require_scratch, and make it umounted.
41 _scratch_unmount > /dev/null 2>&1
43 trap "_cleanup; exit \$status" 0 1 2 3 15
45 # get standard environment, filters and checks
49 # real QA test starts here
51 _require_scratch_nocheck
52 _require_scratch_dev_pool 5
53 _require_scratch_dev_pool_equal_size
54 _require_command "$WIPEFS_PROG" wipefs
59 echo "*** test btrfs replace"
69 # Fill inline extents.
70 for i in `seq 1 500`; do
71 _ddt of=$SCRATCH_MNT/s$i bs=3800 count=1
75 for i in `seq 1 500`; do
76 _ddt of=$SCRATCH_MNT/l$i bs=16385 count=1
78 _ddt of=$SCRATCH_MNT/t0 bs=1M count=1 > /dev/null 2>&1
79 for i in `seq $fssize`; do
80 cp $SCRATCH_MNT/t0 $SCRATCH_MNT/t$i || _fail "cp failed"
81 done > /dev/null 2>> $seqres.full
83 # Ensure we have enough data so that dev-replace would take at least
84 # 2 * $wait_time, allowing we cancel the running replace.
86 # - Use XFS_IO_PROG instead of dd
87 # fstests wraps dd, making it pretty hard to kill the real dd pid
88 # - Use 64K block size with Direct IO
89 # 64K is the same stripe size used in replace/scrub. Using Direct IO
90 # ensure the IO speed is near device limit and comparable to replace
92 $XFS_IO_PROG -f -d -c "pwrite -b 64k 0 1E" "$SCRATCH_MNT/t_filler" &>\
95 sleep $((2 * $wait_time))
96 kill -KILL $filler_pid &> /dev/null
97 wait $filler_pid &> /dev/null
99 # If the system is too fast and the fs is too small, then skip the test
100 if grep -q "No space left" $tmp.filler_result; then
101 ls -alh $SCRATCH_MNT >> $seqres.full
102 cat $tmp.filler_result >> $seqres.full
103 _notrun "fs too small for this test"
105 cat $tmp.filler_result
111 local mkfs_options="$1"
112 local num_devs4raid="$2"
113 local with_cancel="$3"
115 local source_dev="`echo ${SCRATCH_DEV_POOL} | awk '{print $1}'`"
118 [[ $fssize != 64 ]] && quick="thorough"
120 echo -e "\\n---------workout \"$1\" $2 $3 $4-----------" >> $seqres.full
122 $WIPEFS_PROG -a $SCRATCH_DEV_POOL > /dev/null 2>&1
123 _scratch_dev_pool_get $num_devs4raid
126 _scratch_pool_mkfs $mkfs_options >> $seqres.full 2>&1 ||\
130 _require_fs_space $SCRATCH_MNT $((2 * 512 * 1024)) #2.5G
133 _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
135 echo -e "Replace from $source_dev to $SPARE_DEV\\n" >> $seqres.full
136 btrfs_replace_test $source_dev $SPARE_DEV "" $with_cancel $quick
138 _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
140 # Skip -r test for configs without mirror OR replace cancel
141 if echo $mkfs_options | egrep -qv "raid1|raid5|raid6|raid10" || \
142 [ "${with_cancel}Q" = "cancelQ" ]; then
143 _scratch_unmount > /dev/null 2>&1
144 _scratch_dev_pool_put
149 # Due to above replace, now SPARE_DEV is part of the FS, check that.
150 $BTRFS_UTIL_PROG filesystem show -m $SCRATCH_MNT |\
151 grep -qs $SPARE_DEV$ ||\
152 _fail "$SPARE_DEV is not part of SCRATCH_FS"
154 btrfs_replace_test $SPARE_DEV $source_dev "-r" $with_cancel $quick
156 _scratch_unmount > /dev/null 2>&1
157 _scratch_dev_pool_put
163 local source_dev="$1"
164 local target_dev="$2"
165 local replace_options="$3"
166 local with_cancel="$4"
169 # generate some (slow) background traffic in parallel to the
170 # replace operation. It is not a problem if cat fails early
172 cat /dev/urandom | od > $SCRATCH_MNT/noise 2>> $seqres.full &
175 if [ "${with_cancel}Q" = "cancelQ" ]; then
176 # background the replace operation (no '-B' option given)
177 _run_btrfs_util_prog replace start -f $replace_options $source_dev $target_dev $SCRATCH_MNT
179 _run_btrfs_util_prog replace cancel $SCRATCH_MNT
181 # 'replace status' waits for the replace operation to finish
182 # before the status is printed
183 $BTRFS_UTIL_PROG replace status $SCRATCH_MNT > $tmp.tmp 2>&1
184 cat $tmp.tmp >> $seqres.full
185 grep -q canceled $tmp.tmp || _fail "btrfs replace status (canceled) failed"
187 if [ "${quick}Q" = "thoroughQ" ]; then
188 # The thorough test runs around 2 * $wait_time seconds.
189 # This is a chance to force a sync in the middle of the
191 (sleep $wait_time; sync) > /dev/null 2>&1 &
193 _run_btrfs_util_prog replace start -Bf $replace_options $source_dev $target_dev $SCRATCH_MNT
195 $BTRFS_UTIL_PROG replace status $SCRATCH_MNT > $tmp.tmp 2>&1
196 cat $tmp.tmp >> $seqres.full
197 grep -q finished $tmp.tmp || _fail "btrfs replace status (finished) failed"
200 if ps -p $noise_pid | grep -q $noise_pid; then
201 kill -TERM $noise_pid 2> /dev/null
206 # scrub tests on-disk data, that's the reason for the sync.
207 # With the '-B' option (don't background), any type of error causes
208 # exit values != 0, including detected correctable and uncorrectable
209 # errors on the device.
211 _run_btrfs_util_prog scrub start -B $SCRATCH_MNT
213 # Two tests are performed, the 1st is to btrfsck the filesystem,
214 # and the 2nd test is to mount the filesystem.
215 # Usually _check_btrfs_filesystem would perform the mount test,
216 # but it gets confused by the mount output that shows SCRATCH_MNT
217 # mounted but not being mounted to SCRATCH_DEV. This happens
218 # because in /proc/mounts the 2nd device of the filesystem is
219 # shown after the replace operation. Let's just do the mount
220 # test manually after _check_btrfs_filesystem is finished.
221 _scratch_unmount > /dev/null 2>&1
222 if [ "${with_cancel}Q" != "cancelQ" ]; then
223 # after the replace operation, use the target_dev for everything
224 echo "_check_btrfs_filesystem $target_dev" >> $seqres.full
225 _check_btrfs_filesystem $target_dev
226 _mount -t $FSTYP `_scratch_mount_options | sed "s&${SCRATCH_DEV}&${target_dev}&"`
228 _check_btrfs_filesystem $source_dev
233 workout "-m single -d single" 1 no 64
234 workout "-m single -d single -M" 1 no 64
235 workout "-m dup -d single" 1 no 64
236 workout "-m dup -d single" 1 cancel 1024
237 workout "-m dup -d dup -M" 1 no 64
238 workout "-m raid0 -d raid0" 2 no 64
239 workout "-m raid1 -d raid1" 2 no 2048
240 workout "-m raid5 -d raid5" 2 no 64
241 workout "-m raid6 -d raid6" 3 no 64
242 workout "-m raid10 -d raid10" 4 no 64