2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
7 # Exercise IO at large file offsets.
10 seqres=$RESULT_DIR/$seq
11 echo "QA output created by $seq"
16 status=1 # failure is the default!
22 _scratch_unmount 2>/dev/null
24 trap "_cleanup; exit \$status" 0 1 2 3 15
26 # get standard environment, filters and checks
30 bitsperlong=`$here/src/feature -w`
31 # link correct .out file
33 if [ "$bitsperlong" -eq 32 ]; then
34 ln -s $seq.out.32 $seqfull.out
36 ln -s $seq.out.64 $seqfull.out
41 sed -e "s/$dbsize/1FSB/g" -e '/.* ops; /d'
46 sed -e "s/$1/<OFFSET>/g" | _filter_io
51 sed -e "s/pwrite.*: Invalid argument/pwrite: File too large/g"
56 sed -e "s/pread.*: Invalid argument/read 0\/$bytes bytes at offset <OFFSET>/g" | _filter_io
67 [ `$direct` ] && flags=-d
69 echo "Writing $bytes bytes, offset is $words (direct=$direct)" | _filter_io
70 echo "Writing $bytes bytes at $location $words (direct=$direct)" >>$seqres.full
71 $XFS_IO_PROG -c "pwrite $offset 512" $flags $SCRATCH_MNT/$seq \
72 2>&1 | _filter_off $offset | tee -a $seqres.full | _filter_pwrite
73 xfs_bmap -v $SCRATCH_MNT/$seq >>$seqres.full
75 echo "Reading $bytes bytes (direct=$direct)" | _filter_io
76 echo "Reading $bytes bytes at $location (direct=$direct)" >>$seqres.full
77 $XFS_IO_PROG -c "pread $offset $bytes" $flags $SCRATCH_MNT/$seq \
78 2>&1 | _filter_off $offset | tee -a $seqres.full | _filter_pread
80 $XFS_IO_PROG -c "pread -v $offset $bytes" $flags $SCRATCH_MNT/$seq >>$seqres.full 2>&1
82 echo | tee -a $seqres.full
85 # real QA test starts here
89 [ -n "$XFS_IO_PROG" ] || _notrun "xfs_io executable not found"
92 _scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
97 # Okay... filesize limit depends on blocksize, bits per long and
98 # also if large block device patch is enabled (can't dynamically
99 # check that, so use env var USE_LBD_PATCH to override default).
102 # We check from 1Tb below our guessed limit to 1Tb above it, and
103 # see what happens for each 1Tb increment along the way (first
104 # half should succeed, second half should fail to create a file).
105 # So, number calculated here is not the actual limit, its a ways
106 # above that, hopefully.
108 if [ "$bitsperlong" -eq 32 ]; then
109 upperbound=`expr $dbsize / 512`
110 # which is 8(TB) for 4K, 4(TB) for 2k, ... etc.
111 [ "$USE_LBD_PATCH" = yes ] && upperbound=16
112 # limited by page cache index when LBD patch onboard.
114 upperbound=`echo 8 \* 1024 \* 1024 | bc`
115 # 8 exabytes (working in TBs below)
118 # Step from (upperbound-1)(Tb) through (upperbound+1(Tb), &
119 # seeks/writes/reads on each boundary (using holey files) -
120 # 1byte back from the boundary, and 1FSB back from the same
121 # boundary (and stash xfs_bmap output), before moving onto
122 # each new test point.
124 $XFS_IO_PROG -c "truncate 0" -f $SCRATCH_MNT/$seq
126 oneTB=`echo 1024 \* 1024 \* 1024 \* 1024 | bc`
127 count=`expr $upperbound - 1`
128 upperbound=`expr $upperbound + 1`
130 while [ $count -le $upperbound ]
133 offset=`echo $oneTB \* $count | bc`
134 write_block $count "+0" $offset 512 false
135 offset=`echo $oneTB \* $count \- 1 | bc`
136 write_block $count "minus 1 byte" $offset 512 false
137 offset=`echo $oneTB \* $count \- $dbsize | bc`
138 write_block $count "minus 1FSB" $offset 512 false
139 write_block $count "minus 1FSB" $offset 1 false
142 offset=`echo $oneTB \* $count | bc`
143 write_block $count "+0" $offset $dbsize true
144 offset=`echo $oneTB \* $count \- 1 | bc`
145 write_block $count "minus 1FSB" $offset $dbsize true
147 echo === Iterating, `expr $upperbound - $count` remains