2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2011 Oracle All Rights Reserved.
5 # FS QA Test No. btrfs/002
7 # Extented btrfs snapshot test cases
10 seqres=$RESULT_DIR/$seq
11 echo "QA output created by $seq"
15 status=1 # failure is the default!
22 trap "_cleanup ; exit \$status" 0 1 2 3 15
24 # get standard environment, filters and checks
31 _scratch_mkfs > /dev/null 2>&1 || _fail "mkfs failed"
34 # Create and save sha256sum
35 # arg1 FS to generate sha256
36 # arg2 File name to save the sha256 output
42 for i in `find . -type f`; do sha256sum $i >> $2; done
46 # Verify the sha256sum for a FS
47 # arg1 FS to be tested
52 [ -f $2 ] || _fail "checksum file $2 not found"
53 sha256sum -c $2 | grep "FAILED"
59 # Return snapshot name in the SNAPNAME
63 [ -d $1 ] || _fail "Destination dir $1 not present"
64 SNAPNAME=`mktemp -u $SCRATCH_MNT/snap.XXXXXX`
65 $BTRFS_UTIL_PROG subvolume snapshot $1 $SNAPNAME > /dev/null || _fail "snapshot create failed"
68 # Reads and writes new data but does not allocate new blocks
69 # arg1 FS to be modified
74 for i in `find $1 -type f`
76 FSIZE=`stat -t $i | cut -d" " -f2`
77 dd if=$i of=/dev/null obs=$FSIZE count=1 status=noxfer 2>/dev/null &
78 _ddt of=$i obs=$FSIZE count=1 status=noxfer 2>/dev/null &
83 # Fills the allocated blocks
93 for i in `find /$1 -type f`
95 FSIZE=`stat -t $i | cut -d" " -f2`
96 BLKS=`stat -c "%B" $i`
97 NBLK=`stat -c "%b" $i`
98 FALLOC=$(($BLKS * $NBLK))
99 WS=$(($FALLOC - $FSIZE))
100 _ddt of=$i oseek=$FSIZE obs=$WS count=1 status=noxfer 2>/dev/null &
105 # Append a random size to the files
106 # arg1 : FS in question
114 for i in `find $1 -type f`
118 FSIZE=`stat -t $X | cut -d" " -f2`
119 dd if=$X of=$X seek=1 bs=$FSIZE obs=$FSIZE count=1 status=noxfer 2>/dev/null &
123 FSIZE=`stat -t $i | cut -d" " -f2`
124 dd if=$X of=$i seek=1 bs=$FSIZE obs=$FSIZE count=1 status=noxfer 2>/dev/null &
130 ##################### real QA test starts here###################################
131 # sv1 - is just a name nothing spl
132 firstvol="$SCRATCH_MNT/sv1"
133 $BTRFS_UTIL_PROG subvolume create $firstvol > /dev/null || _fail "btrfs subvolume create $firstvol failed"
134 dirp=`mktemp -duq $firstvol/dir.XXXXXX`
135 _populate_fs -n 1 -f 20 -d 10 -r $dirp -s 10 -c
137 _create_snap $firstvol
138 _save_checksum $firstvol $tmp.sv1.sum
139 _verify_checksum $SNAPNAME $tmp.sv1.sum
143 _verify_checksum $firstvol $tmp.sv1.sum
146 _append_file $SNAPNAME
147 _verify_checksum $firstvol $tmp.sv1.sum
150 _read_modify_write $SNAPNAME
151 _verify_checksum $firstvol $tmp.sv1.sum
153 #nested snapshot test
155 for i in `seq 1 7`; do
157 _create_snap $src_vol
158 _verify_checksum $SNAPNAME $tmp.sv1.sum
164 _create_snap $firstvol
165 tname=`echo $SNAPNAME | rev | cut -d"/" -f1 | rev`
166 _save_checksum $SNAPNAME $tmp.$tname.sum
168 _verify_checksum $SNAPNAME $tmp.$tname.sum
170 _scratch_unmount || _fail "unmount failed"
172 echo "Silence is golden"