4 # Purpose of this test is to check FITRIM argument handling to make sure
5 # that the argument processing is right and that it does not overflow.
7 #-----------------------------------------------------------------------
8 # Copyright 2011 (C) Red Hat, Inc., Lukas Czerner <lczerner@redhat.com>
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation.
14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
25 seqres=$RESULT_DIR/$seq
26 echo "QA output created by $seq"
31 trap "exit \$status" 0 1 2 3 15
35 # get standard environment, filters and checks
39 # real QA test starts here
45 _scratch_mkfs >/dev/null 2>&1
48 _require_batched_discard $SCRATCH_MNT
50 fssize=$($DF_PROG -k | grep "$SCRATCH_MNT" | grep "$SCRATCH_DEV" | awk '{print $3}')
52 beyond_eofs=$(_math "$fssize*2048")
53 max_64bit=$(_math "2^64 - 1")
55 # All these tests should return EINVAL
56 # since the start is beyond the end of
59 echo "[+] Start beyond the end of fs (should fail)"
60 out=$($FSTRIM_PROG -o $beyond_eofs $SCRATCH_MNT 2>&1)
61 [ $? -eq 0 ] && status=1
62 echo $out | _filter_scratch
64 echo "[+] Start beyond the end of fs with len set (should fail)"
65 out=$($FSTRIM_PROG -o $beyond_eofs -l1M $SCRATCH_MNT 2>&1)
66 [ $? -eq 0 ] && status=1
67 echo $out | _filter_scratch
69 echo "[+] Start = 2^64-1 (should fail)"
70 out=$($FSTRIM_PROG -o $max_64bit $SCRATCH_MNT 2>&1)
71 [ $? -eq 0 ] && status=1
72 echo $out | _filter_scratch
74 echo "[+] Start = 2^64-1 and len is set (should fail)"
75 out=$($FSTRIM_PROG -o $max_64bit -l1M $SCRATCH_MNT 2>&1)
76 [ $? -eq 0 ] && status=1
77 echo $out | _filter_scratch
80 _scratch_mkfs >/dev/null 2>&1
83 # All these tests should succeed
84 # since the length should be truncated
86 echo "[+] Default length (should succeed)"
87 $FSTRIM_PROG $SCRATCH_MNT
88 [ $? -ne 0 ] && status=1
89 echo "[+] Default length with start set (should succeed)"
90 $FSTRIM_PROG -o10M $SCRATCH_MNT
91 [ $? -ne 0 ] && status=1
92 echo "[+] Length beyond the end of fs (should succeed)"
93 $FSTRIM_PROG -l $beyond_eofs $SCRATCH_MNT
94 [ $? -ne 0 ] && status=1
95 echo "[+] Length beyond the end of fs with start set (should succeed)"
96 $FSTRIM_PROG -o10M -l $beyond_eofs $SCRATCH_MNT
97 [ $? -ne 0 ] && status=1
100 _scratch_mkfs >/dev/null 2>&1
103 # This is a bit fuzzy, but since the file system is fresh
104 # there should be at least (fssize/2) free space to trim.
105 # This is supposed to catch wrong FITRIM argument handling
106 bytes=$($FSTRIM_PROG -v -o10M $SCRATCH_MNT | _filter_fstrim)
108 if [ $bytes -gt $(_math "$fssize*1024") ]; then
110 echo "After the full fs discard $bytes bytes were discarded"\
111 "however the file system is $(_math "$fssize*1024") bytes long."
114 # Btrfs is special and this test does not apply to it
115 # It is because btrfs does not have not-yet-used parts of the device
116 # mapped and since we got here right after the mkfs, there is not
117 # enough free extents in the root tree.
118 if [ $bytes -le $(_math "$fssize*512") ] && [ $FSTYP != "btrfs" ]; then
120 echo "After the full fs discard $bytes bytes were discarded"\
121 "however the file system is $(_math "$fssize*1024") bytes long."
124 # Now to catch overflows due to fsblk->allocation group number conversion
125 # This is different for every file system and it also apply just to some of
126 # them. In order to add check specific for file system you're interested in
127 # compute the arguments as you need and make the file system with proper
130 # (2^32-1) + 2 (this is set to overflow 32bit variable by 2)
131 base=$(_math "2^32+1")
137 start=$(_math "$base*$agsize*$bsize")
139 export MKFS_OPTIONS="-F -b $bsize -g $agsize"
144 start=$(_math "$base*$agsize*$bsize")
146 export MKFS_OPTIONS="-f -d agsize=$(_math "$agsize*$bsize") -b size=$bsize"
149 # (2^32-1) * 4096 * 65536 == 32bit max size * block size * ag size
150 start=$(_math "(2^32 - 1) * 4096 * 65536")
156 _scratch_mkfs >/dev/null 2>&1
158 # It should fail since $start is beyond the end of file system
159 $FSTRIM_PROG -o$start -l10M $SCRATCH_MNT &> /dev/null
160 if [ $? -eq 0 ]; then
162 echo "It seems that fs logic handling start"\
167 _scratch_mkfs >/dev/null 2>&1
170 # len should be big enough to cover the whole file system, so if the
171 # number of discarded bytes is smaller than file system size/2 then it
172 # most likely overflowed
173 # Btrfs is special and this test does not apply to it
174 # It is because btrfs does not have not-yet-used parts of the device
175 # mapped and since we got here right after the mkfs, there is not
176 # enough free extents in the root tree.
177 bytes=$($FSTRIM_PROG -v -l$len $SCRATCH_MNT | _filter_fstrim)
178 if [ $bytes -le $(_math "$fssize*512") ] && [ $FSTYP != "btrfs" ]; then
180 echo "It seems that fs logic handling len argument overflows"