fstests: update sparse file & negative timestamp tests for exfat
[xfstests-dev.git] / common / rc
index 0c3359fd5539804b5f4b1c80dcdc7e4a6eb3c634..b25cad0ed8b098c51807e878a465247679ae618c 100644 (file)
--- a/common/rc
+++ b/common/rc
@@ -1,37 +1,10 @@
 ##/bin/bash
-#-----------------------------------------------------------------------
-#  Copyright (c) 2000-2006 Silicon Graphics, Inc.  All Rights Reserved.
-#  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation; either version 2 of the License, or
-#  (at your option) any later version.
-#
-#  This program is distributed in the hope that it will be useful,
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#  GNU General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software
-#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
-#  USA
-#
-#  Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane,
-#  Mountain View, CA 94043, USA, or: http://www.sgi.com
-#-----------------------------------------------------------------------
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2000-2006 Silicon Graphics, Inc.  All Rights Reserved.
 
-BC=$(which bc 2> /dev/null) || BC=
+. common/config
 
-# Valid test names start with 3 digits "NNN":
-#  "[0-9]\{3\}"
-# followed by an optional "-":
-#  "-\?"
-# followed by an optional combination of alphanumeric and "-" chars:
-#  "[[:alnum:]-]*"
-# e.g. 999-the-mark-of-fstests
-#
-VALID_TEST_ID="[0-9]\{3\}"
-VALID_TEST_NAME="$VALID_TEST_ID-\?[[:alnum:]-]*"
+BC=$(which bc 2> /dev/null) || BC=
 
 # Some tests are not relevant or functional when testing XFS realtime
 # subvolumes along with the rtinherit=1 mkfs option.  In these cases,
@@ -110,26 +83,22 @@ _ls_l()
        ls -l $* | sed "s/\(^[-rwxdlbcpsStT]*\)\. /\1 /" | grep -v 'lost+found'
 }
 
-# we need common/config
-if [ "$iam" != "check" ]
-then
-    if ! . ./common/config
-        then
-        echo "$iam: failed to source common/config"
-        exit 1
-    fi
-fi
-
 _dump_err()
 {
     _err_msg="$*"
     echo "$_err_msg"
 }
 
+_dump_err_cont()
+{
+    _err_msg="$*"
+    echo -n "$_err_msg"
+}
+
 _dump_err2()
 {
     _err_msg="$*"
-    >2& echo "$_err_msg"
+    >&2 echo "$_err_msg"
 }
 
 _log_err()
@@ -149,6 +118,7 @@ case "$FSTYP" in
         [ "$XFS_REPAIR_PROG" = "" ] && _fatal "xfs_repair not found"
         [ "$XFS_DB_PROG" = "" ] && _fatal "xfs_db not found"
         [ "$MKFS_XFS_PROG" = "" ] && _fatal "mkfs_xfs not found"
+        [ "$XFS_INFO_PROG" = "" ] && _fatal "xfs_info not found"
 
         . ./common/xfs
         ;;
@@ -195,6 +165,11 @@ if [ ! -z "$REPORT_LIST" ]; then
        _assert_report_list
 fi
 
+_get_filesize()
+{
+    stat -c %s "$1"
+}
+
 _mount()
 {
     $MOUNT_PROG `_mount_ops_filter $*`
@@ -214,6 +189,12 @@ _get_mount()
 
        _mount $scratch_opts $*
        if [ $? -eq 0 ]; then
+               # mount --move operation updates the mountpoint, so remove
+               # the old one and insert the new one
+               if [[ "$*" =~ --move|-M ]]; then
+                       MOUNTED_POINT_STACK=`echo $MOUNTED_POINT_STACK | \
+                                               cut -d\  -f2-`
+               fi
                MOUNTED_POINT_STACK="$mnt_point $MOUNTED_POINT_STACK"
        else
                return 1
@@ -333,7 +314,7 @@ _supports_filetype()
        local fstyp=`$DF_PROG $dir | tail -1 | $AWK_PROG '{print $2}'`
        case "$fstyp" in
        xfs)
-               xfs_info $dir | grep -q "ftype=1"
+               $XFS_INFO_PROG $dir | grep -q "ftype=1"
                ;;
        ext2|ext3|ext4)
                local dev=`$DF_PROG $dir | tail -1 | $AWK_PROG '{print $1}'`
@@ -343,7 +324,7 @@ _supports_filetype()
                local testfile=$dir/$$.ftype
                touch $testfile
                # look for DT_UNKNOWN files
-               local unknowns=$(src/t_dir_type $dir u | wc -l)
+               local unknowns=$($here/src/t_dir_type $dir u | wc -l)
                rm $testfile
                # 0 unknowns is success
                return $unknowns
@@ -387,7 +368,7 @@ _scratch_remount()
     local opts="$1"
 
     if test -n "$opts"; then
-       mount -o "remount,$opts" $SCRATCH_MNT
+       _try_scratch_mount "-o remount,$opts"
     fi
 }
 
@@ -416,10 +397,21 @@ _scratch_shutdown()
                if [ -z $OVL_BASE_SCRATCH_DEV ]; then
                        _fail "_scratch_shutdown: call _require_scratch_shutdown first in test"
                else
-                       src/godown $* $OVL_BASE_SCRATCH_MNT
+                       $here/src/godown $* $OVL_BASE_SCRATCH_MNT
                fi
        else
-               src/godown $* $SCRATCH_MNT
+               $here/src/godown $* $SCRATCH_MNT
+       fi
+}
+
+# Return a file path that can be used to shut down the scratch filesystem.
+# Caller should _require_scratch_shutdown before using this.
+_scratch_shutdown_handle()
+{
+       if [ $FSTYP = "overlay" ]; then
+               echo $OVL_BASE_SCRATCH_MNT
+       else
+               echo $SCRATCH_MNT
        fi
 }
 
@@ -622,6 +614,9 @@ _test_mkfs()
     9p)
        # do nothing for 9p
        ;;
+    virtiofs)
+       # do nothing for virtiofs
+       ;;
     ceph)
        # do nothing for ceph
        ;;
@@ -659,6 +654,9 @@ _mkfs_dev()
     9p)
        # do nothing for 9p
        ;;
+    virtiofs)
+       # do nothing for virtiofs
+       ;;
     overlay)
        # do nothing for overlay
        ;;
@@ -723,7 +721,7 @@ _scratch_mkfs()
        local mkfs_status
 
        case $FSTYP in
-       nfs*|cifs|ceph|overlay|glusterfs|pvfs2|9p)
+       nfs*|cifs|ceph|overlay|glusterfs|pvfs2|9p|virtiofs)
                # unable to re-create this fstyp, just remove all files in
                # $SCRATCH_MNT to avoid EEXIST caused by the leftover files
                # created in previous runs
@@ -904,13 +902,7 @@ _scratch_pool_mkfs()
 {
     case $FSTYP in
     btrfs)
-        # if dup profile is in mkfs options call _scratch_mkfs instead
-        # because dup profile only works with single device
-        if [[ "$*" =~ dup ]]; then
-            _scratch_mkfs $*
-        else
-            $MKFS_BTRFS_PROG $MKFS_OPTIONS $* $SCRATCH_DEV_POOL > /dev/null
-        fi
+        $MKFS_BTRFS_PROG $MKFS_OPTIONS $* $SCRATCH_DEV_POOL > /dev/null
         ;;
     *)
         echo "_scratch_pool_mkfs is not implemented for $FSTYP" 1>&2
@@ -924,6 +916,17 @@ _free_memory_bytes()
     free -b | grep ^Mem | awk '{print $4}'
 }
 
+_available_memory_bytes()
+{
+       nf=`free -b | grep ^Mem | awk '{print NF}'`
+       if [[ nf -lt 7 ]]; then
+               # Doesn't have available field. Fallback.
+               _free_memory_bytes
+       else
+               free -b | grep ^Mem | awk '{print $7}'
+       fi
+}
+
 # Create fs of certain size on scratch device
 # _scratch_mkfs_sized <size in bytes> [optional blocksize]
 _scratch_mkfs_sized()
@@ -999,7 +1002,10 @@ _scratch_mkfs_sized()
        ;;
     btrfs)
        local mixed_opt=
-       (( fssize <= 1024 * 1024 * 1024 )) && mixed_opt='--mixed'
+       # minimum size that's needed without the mixed option.
+       # Ref: btrfs-prog: btrfs_min_dev_size()
+       # Non mixed mode is also the default option.
+       (( fssize < $((256 * 1024 *1024)) )) && mixed_opt='--mixed'
        $MKFS_BTRFS_PROG $MKFS_OPTIONS $mixed_opt -b $fssize $SCRATCH_DEV
        ;;
     jfs)
@@ -1128,11 +1134,20 @@ _repair_scratch_fs()
        return $res
         ;;
     *)
-        # Let's hope fsck -y suffices...
-        fsck -t $FSTYP -y $SCRATCH_DEV 2>&1
+       local dev=$SCRATCH_DEV
+       local fstyp=$FSTYP
+       if [ $FSTYP = "overlay" -a -n "$OVL_BASE_SCRATCH_DEV" ]; then
+               _repair_overlay_scratch_fs
+               # Fall through to repair base fs
+               dev=$OVL_BASE_SCRATCH_DEV
+               fstyp=$OVL_BASE_FSTYP
+               $UMOUNT_PROG $OVL_BASE_SCRATCH_MNT
+       fi
+       # Let's hope fsck -y suffices...
+       fsck -t $fstyp -y $dev 2>&1
        local res=$?
        case $res in
-       0|1|2)
+       $FSCK_OK|$FSCK_NONDESTRUCT|$FSCK_REBOOT)
                res=0
                ;;
        *)
@@ -1169,27 +1184,6 @@ _get_pids_by_name()
        -e "/[0-9]:[0-9][0-9]  *$1 /s/ .*//p"
 }
 
-# fix malloc libs output
-#
-_fix_malloc()
-{
-    # filter out the Electric Fence notice
-    $PERL_PROG -e '
-        while (<>) {
-            if (defined $o && /^\s+Electric Fence/) {
-                chomp($o);
-                print "$o";
-                undef $o;
-                next;
-            }
-            print $o if (defined $o);
-
-            $o=$_;
-        }
-        print $o if (defined $o);
-    '
-}
-
 #
 # _df_device : get an IRIX style df line for a given device
 #
@@ -1323,7 +1317,7 @@ _is_block_dev()
     fi
 
     if [ -b "$dev" ]; then
-        src/lstat64 "$dev" | $AWK_PROG '/Device type:/ { print $9 }'
+        $here/src/lstat64 "$dev" | $AWK_PROG '/Device type:/ { print $9 }'
     fi
 }
 
@@ -1342,7 +1336,7 @@ _is_char_dev()
        fi
 
        if [ -c "$dev" ]; then
-               src/lstat64 "$dev" | $AWK_PROG '/Device type:/ { print $9 }'
+               $here/src/lstat64 "$dev" | $AWK_PROG '/Device type:/ { print $9 }'
        fi
 }
 
@@ -1372,7 +1366,7 @@ _do()
     (eval "echo '---' \"$cmd\"") >>$seqres.full
     (eval "$cmd") >$tmp._out 2>&1
     local ret=$?
-    cat $tmp._out | _fix_malloc >>$seqres.full
+    cat $tmp._out >>$seqres.full
     rm -f $tmp._out
     if [ $# -eq 2 ]; then
        if [ $ret -eq 0 ]; then
@@ -1501,7 +1495,7 @@ _require_scratch_nocheck()
                        _notrun "this test requires a valid \$SCRATCH_MNT"
                fi
                ;;
-       9p)
+       9p|virtiofs)
                if [ -z "$SCRATCH_DEV" ]; then
                        _notrun "this test requires a valid \$SCRATCH_DEV"
                fi
@@ -1600,6 +1594,16 @@ _require_scratch()
        touch ${RESULT_DIR}/require_scratch
 }
 
+# require a scratch dev of a minimum size (in kb)
+_require_scratch_size()
+{
+       [ $# -eq 1 ] || _fail "_require_scratch_size: expected size param"
+
+       _require_scratch
+       local devsize=`_get_device_size $SCRATCH_DEV`
+       [ $devsize -lt $1 ] && _notrun "scratch dev too small"
+}
+
 
 # this test needs a test partition - check we're ok & mount it
 #
@@ -1615,7 +1619,7 @@ _require_test()
                        _notrun "this test requires a valid \$TEST_DIR"
                fi
                ;;
-       9p)
+       9p|virtiofs)
                if [ -z "$TEST_DEV" ]; then
                        _notrun "this test requires a valid \$TEST_DEV"
                fi
@@ -1870,6 +1874,17 @@ _require_dm_target()
        _require_sane_bdev_flush $SCRATCH_DEV
        _require_command "$DMSETUP_PROG" dmsetup
 
+       echo $MOUNT_OPTIONS | grep -q dax
+       if [ $? -eq 0 ]; then
+               case $target in
+               stripe|linear|log-writes)
+                       ;;
+               *)
+                       _notrun "Cannot run tests with DAX on $target devices."
+                       ;;
+               esac
+       fi
+
        modprobe dm-$target >/dev/null 2>&1
 
        $DMSETUP_PROG targets 2>&1 | grep -q ^$target
@@ -1937,10 +1952,10 @@ _require_aiodio()
 {
     if [ -z "$1" ]
     then
-        AIO_TEST=src/aio-dio-regress/aiodio_sparse2
+        AIO_TEST=$here/src/aio-dio-regress/aiodio_sparse2
         [ -x $AIO_TEST ] || _notrun "aio-dio utilities required"
     else
-        AIO_TEST=src/aio-dio-regress/$1
+        AIO_TEST=$here/src/aio-dio-regress/$1
         [ -x $AIO_TEST ] || _notrun "$AIO_TEST not built"
     fi
     _require_aio
@@ -1952,7 +1967,7 @@ _require_aiodio()
 #
 _require_test_program()
 {
-    local prog=src/$1
+    local prog=$here/src/$1
     [ -x $prog ] || _notrun "$prog not built"
 }
 
@@ -1977,44 +1992,61 @@ _run_aiodio()
     return $status
 }
 
-# this test requires y2038 sysfs switch and filesystem
-# timestamp ranges support.
-_require_y2038()
+_require_timestamp_range()
 {
        local device=${1:-$TEST_DEV}
-       local sysfsdir=/proc/sys/fs/fs-timestamp-check-on
-
-       if [ ! -e $sysfsdir ]; then
-               _notrun "no kernel support for y2038 sysfs switch"
-       fi
 
        local tsmin tsmax
        read tsmin tsmax <<<$(_filesystem_timestamp_range $device)
        if [ $tsmin -eq -1 -a $tsmax -eq -1 ]; then
                _notrun "filesystem $FSTYP timestamp bounds are unknown"
        fi
+
+       # expect console warning from rw scratch mount if fs limit is near
+       if [ $tsmax -le $((1<<31)) ] && \
+               ! _check_dmesg_for "filesystem being mounted at .* supports timestamps until"
+       then
+               _notrun "Kernel does not support timestamp limits"
+       fi
 }
 
 _filesystem_timestamp_range()
 {
        local device=${1:-$TEST_DEV}
-       case $FSTYP in
-       ext4)
+       local fstyp=${2:-$FSTYP}
+       u32max=$(((1<<32)-1))
+       s32min=-$((1<<31))
+       s32max=$(((1<<31)-1))
+       s64max=$(((1<<63)-1))
+       s64min=$((1<<63))
+
+       case $fstyp in
+       ext2)
+               echo "$s32min $s32max"
+               ;;
+       ext3|ext4)
                if [ $(dumpe2fs -h $device 2>/dev/null | grep "Inode size:" | cut -d: -f2) -gt 128 ]; then
-                       echo "-2147483648 15032385535"
+                       printf "%d %d\n" $s32min 0x37fffffff
                else
-                       echo "-2147483648 2147483647"
+                       echo "$s32min $s32max"
                fi
                ;;
 
+       jfs)
+               echo "0 $u32max"
+               ;;
        xfs)
-               echo "-2147483648 2147483647"
+               echo "$s32min $s32max"
                ;;
-       jfs)
-               echo "0 4294967295"
+       btrfs)
+               echo "$s64min $s64max"
                ;;
-       f2fs)
-               echo "-2147483648 2147483647"
+       overlay)
+               if [ ! -z $OVL_BASE_FSTYP -a $OVL_BASE_FSTYP != "overlay" ]; then
+                       _filesystem_timestamp_range $OVL_BASE_TEST_DEV $OVL_BASE_FSTYP
+               else
+                       echo "-1 -1"
+               fi
                ;;
        *)
                echo "-1 -1"
@@ -2029,7 +2061,9 @@ _yp_active()
        local dn
        dn=$(domainname 2>/dev/null)
        local ypcat=$(type -P ypcat)
-       test -n "${dn}" -a "${dn}" != "(none)" -a "${dn}" != "localdomain" -a -n "${ypcat}"
+       local rpcinfo=$(type -P rpcinfo)
+       test -n "${dn}" -a "${dn}" != "(none)" -a "${dn}" != "localdomain" -a -n "${ypcat}" -a -n "${rpcinfo}" && \
+               "${rpcinfo}" -p localhost 2>/dev/null | grep -q ypbind
        echo $?
 }
 
@@ -2100,24 +2134,41 @@ _require_xfs_io_command()
        local command=$1
        shift
        local param="$*"
-       local param_checked=0
+       local param_checked=""
        local opts=""
 
        local testfile=$TEST_DIR/$$.xfs_io
        local testio
        case $command in
+       "chattr")
+               if [ -z "$param" ]; then
+                       param=s
+               fi
+               # Test xfs_io chattr support AND
+               # filesystem FS_IOC_FSSETXATTR support
+               testio=`$XFS_IO_PROG -F -f -c "chattr +$param" $testfile 2>&1`
+               $XFS_IO_PROG -F -f -r -c "chattr -$param" $testfile 2>&1
+               param_checked="+$param"
+               ;;
        "chproj")
                testio=`$XFS_IO_PROG -F -f -c "chproj 0" $testfile 2>&1`
                ;;
        "copy_range")
                local testcopy=$TEST_DIR/$$.copy.xfs_io
+               local copy_opts=$testfile
+               if [ "$param" == "-f" ]; then
+                       # source file is the open destination file
+                       testcopy=$testfile
+                       copy_opts="0 -d 4k -l 4k"
+               fi
                $XFS_IO_PROG -F -f -c "pwrite 0 4k" $testfile > /dev/null 2>&1
-               testio=`$XFS_IO_PROG -F -f -c "copy_range $testfile" $testcopy 2>&1`
+               testio=`$XFS_IO_PROG -F -f -c "copy_range $param $copy_opts" $testcopy 2>&1`
                rm -f $testcopy > /dev/null 2>&1
+               param_checked="$param"
                ;;
        "falloc" )
                testio=`$XFS_IO_PROG -F -f -c "falloc $param 0 1m" $testfile 2>&1`
-               param_checked=1
+               param_checked="$param"
                ;;
        "fpunch" | "fcollapse" | "zero" | "fzero" | "finsert" | "funshare")
                local blocksize=$(_get_block_size $TEST_DIR)
@@ -2135,19 +2186,29 @@ _require_xfs_io_command()
                fi
                testio=`$XFS_IO_PROG -F -f -c "pwrite 0 20k" -c "fsync" \
                        -c "fiemap -v $param" $testfile 2>&1`
-               param_checked=1
+               param_checked="$param"
                ;;
-       "flink" )
-               testio=`$XFS_IO_PROG -T -F -c "flink $testfile" \
-                       $TEST_DIR 2>&1`
+       "flink")
+               local testlink=$TEST_DIR/$$.link.xfs_io
+               testio=`$XFS_IO_PROG -F -f -c "flink $testlink" $testfile 2>&1`
+               rm -f $testlink > /dev/null 2>&1
+               ;;
+       "-T")
+               # Check O_TMPFILE support in xfs_io, kernel and fs
+               testio=`$XFS_IO_PROG -T -c quit $TEST_DIR 2>&1`
                echo $testio | egrep -q "invalid option|Is a directory" && \
                        _notrun "xfs_io $command support is missing"
+               echo $testio | grep -q "Operation not supported" && \
+                       _notrun "O_TMPFILE is not supported"
                ;;
-       "fsmap" )
+       "fsmap")
                testio=`$XFS_IO_PROG -f -c "fsmap" $testfile 2>&1`
                echo $testio | grep -q "Inappropriate ioctl" && \
                        _notrun "xfs_io $command support is missing"
                ;;
+       "label")
+               testio=`$XFS_IO_PROG -c "label" $TEST_DIR 2>&1`
+               ;;
        "open")
                # -c "open $f" is broken in xfs_io <= 4.8. Along with the fix,
                # a new -C flag was introduced to execute one shot commands.
@@ -2165,15 +2226,15 @@ _require_xfs_io_command()
                fi
                testio=`$XFS_IO_PROG -f $opts -c \
                        "pwrite $pwrite_opts $param 0 4k" $testfile 2>&1`
-               param_checked=1
+               param_checked="$pwrite_opts $param"
                ;;
        "scrub"|"repair")
-               testio=`$XFS_IO_PROG -x -c "$command probe 0" $TEST_DIR 2>&1`
+               testio=`$XFS_IO_PROG -x -c "$command probe" $TEST_DIR 2>&1`
                echo $testio | grep -q "Inappropriate ioctl" && \
                        _notrun "xfs_io $command support is missing"
                ;;
        "utimes" )
-               testio=`$XFS_IO_PROG -f -c "utimes" 0 0 0 0 $testfile 2>&1`
+               testio=`$XFS_IO_PROG -f -c "utimes 0 0 0 0" $testfile 2>&1`
                ;;
        "syncfs")
                touch $testfile
@@ -2185,20 +2246,20 @@ _require_xfs_io_command()
 
        rm -f $testfile 2>&1 > /dev/null
        echo $testio | grep -q "not found" && \
-               _notrun "xfs_io $command support is missing"
-       echo $testio | grep -q "Operation not supported" && \
-               _notrun "xfs_io $command failed (old kernel/wrong fs?)"
+               _notrun "xfs_io $command $param_checked support is missing"
+       echo $testio | grep -q "Operation not supported\|Inappropriate ioctl" && \
+               _notrun "xfs_io $command $param_checked failed (old kernel/wrong fs?)"
        echo $testio | grep -q "Invalid" && \
-               _notrun "xfs_io $command failed (old kernel/wrong fs/bad args?)"
+               _notrun "xfs_io $command $param_checked failed (old kernel/wrong fs/bad args?)"
        echo $testio | grep -q "foreign file active" && \
-               _notrun "xfs_io $command not supported on $FSTYP"
+               _notrun "xfs_io $command $param_checked not supported on $FSTYP"
        echo $testio | grep -q "Function not implemented" && \
-               _notrun "xfs_io $command support is missing (missing syscall?)"
+               _notrun "xfs_io $command $param_checked support is missing (missing syscall?)"
 
        [ -n "$param" ] || return
 
-       if [ $param_checked -eq 0 ]; then
-               $XFS_IO_PROG -c "help $command" | grep -q "^ $param --" || \
+       if [ -z "$param_checked" ]; then
+               $XFS_IO_PROG -c "help $command" | grep -E -q "^ $param ([a-zA-Z_]+ )?--" || \
                        _notrun "xfs_io $command doesn't support $param"
        else
                # xfs_io could result in "command %c not supported" if it was
@@ -2211,10 +2272,13 @@ _require_xfs_io_command()
 # check that kernel and filesystem support direct I/O
 _require_odirect()
 {
-       if [ $FSTYP = "ext4" ] ; then
+       if [ $FSTYP = "ext4" ] || [ $FSTYP = "f2fs" ] ; then
                if echo "$MOUNT_OPTIONS" | grep -q "test_dummy_encryption"; then
-                       _notrun "ext4 encryption doesn't support O_DIRECT"
-               elif echo "$MOUNT_OPTIONS" | grep -q "data=journal"; then
+                       _notrun "$FSTYP encryption doesn't support O_DIRECT"
+               fi
+       fi
+       if [ $FSTYP = "ext4" ] ; then
+               if echo "$MOUNT_OPTIONS" | grep -q "data=journal"; then
                        _notrun "ext4 data journaling doesn't support O_DIRECT"
                fi
        fi
@@ -2226,19 +2290,43 @@ _require_odirect()
        rm -f $testfile 2>&1 > /dev/null
 }
 
+_format_swapfile() {
+       local fname="$1"
+       local sz="$2"
+
+       rm -f "$fname"
+       touch "$fname"
+       chmod 0600 "$fname"
+       # Swap files must be nocow on Btrfs.
+       $CHATTR_PROG +C "$fname" > /dev/null 2>&1
+       _pwrite_byte 0x61 0 "$sz" "$fname" >> $seqres.full
+       $MKSWAP_PROG "$fname" >> $seqres.full
+}
+
 # Check that the filesystem supports swapfiles
 _require_scratch_swapfile()
 {
        _require_scratch
+       _require_command "$MKSWAP_PROG" "mkswap"
 
        _scratch_mkfs >/dev/null
+
+       # With mounting SELinux context(e.g. system_u:object_r:root_t:s0),
+       # standard mkswap tried to reset the type of default context to
+       # swapfile_t if it's not swapfile_t, and then it failed and returned
+       # ENOTSUP expectedly as we don't want to create any SELinux attr on
+       # purpose.  standard mkswap ignored this relabel error by commit
+       # d97dc0e of util-linux, but it still reported the error before
+       # commit d97dc0e.  We mount swapfile context directly to skip the
+       # reset step.
+       [ -n "$SELINUX_MOUNT_OPTIONS" ] && export \
+               SELINUX_MOUNT_OPTIONS="-o context=system_u:object_r:swapfile_t:s0"
+
        _scratch_mount
 
        # Minimum size for mkswap is 10 pages
-       local size=$(($(get_page_size) * 10))
+       _format_swapfile "$SCRATCH_MNT/swap" $(($(get_page_size) * 10))
 
-       _pwrite_byte 0x61 0 "$size" "$SCRATCH_MNT/swap" >/dev/null 2>&1
-       mkswap "$SCRATCH_MNT/swap" >/dev/null 2>&1
        if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
                _scratch_unmount
                _notrun "swapfiles are not supported"
@@ -2269,7 +2357,7 @@ _require_fs_space()
 _require_sparse_files()
 {
     case $FSTYP in
-    hfsplus)
+    hfsplus|exfat)
         _notrun "Sparse files not supported by this filesystem type: $FSTYP"
        ;;
     *)
@@ -2287,7 +2375,7 @@ _require_fail_make_request()
 {
     [ -f "$DEBUGFS_MNT/fail_make_request/probability" ] \
        || _notrun "$DEBUGFS_MNT/fail_make_request \
- not found. Seems that CONFIG_FAIL_MAKE_REQUEST kernel config option not enabled"
+ not found. Seems that CONFIG_FAULT_INJECTION_DEBUG_FS kernel config option not enabled"
 }
 
 # Disable extent zeroing for ext4 on the given device
@@ -2300,6 +2388,60 @@ _ext4_disable_extent_zeroout()
                echo 0 >/sys/fs/ext4/$sdev/extent_max_zeroout_kb
 }
 
+# The default behavior of SEEK_HOLE is to always return EOF.
+# Filesystems that implement non-default behavior return the offset
+# of holes with SEEK_HOLE. There is no way to query the filesystem
+# of which behavior it is implementing.
+# We use this whitelist FSTYP, to set expectation and avoid silent
+# regression of filesystem seek hole behavior.
+#
+# Return 0 for true
+_fstyp_has_non_default_seek_data_hole()
+{
+       if [ -z $1 ]; then
+               local fstyp=$FSTYP
+       else
+               local fstyp=$1
+       fi
+
+       case "$fstyp" in
+       btrfs|ext4|xfs|cifs|f2fs|gfs2|ocfs2|tmpfs)
+               return 0
+               ;;
+       nfs*)
+               # NFSv2 and NFSv3 only support default behavior of SEEK_HOLE,
+               # while NFSv4 supports non-default behavior
+               local nfsvers=`_df_device $TEST_DEV | $AWK_PROG '{ print $2 }'`
+               [ "$nfsvers" = "nfs4" ]
+               return $?
+               ;;
+       overlay)
+               if [ ! -z $OVL_BASE_FSTYP -a $OVL_BASE_FSTYP != "overlay" ]; then
+                       _fstyp_has_non_default_seek_data_hole $OVL_BASE_FSTYP
+                       return $?
+               else
+                       # Assume that base fs has default behavior
+                       return 1
+               fi
+               ;;
+       *)
+               # by default fstyp has default SEEK_HOLE behavior;
+               # if your fs has non-default behavior, add it to whitelist above!
+               return 1
+               ;;
+       esac
+}
+
+# Run seek sanity test with predefined expectation for SEEK_DATA/HOLE behavior
+_run_seek_sanity_test()
+{
+       local testseekargs
+       if _fstyp_has_non_default_seek_data_hole; then
+               testseekargs+="-f"
+       fi
+       $here/src/seek_sanity_test $testseekargs $*
+}
+
 # Check if the file system supports seek_data/hole
 _require_seek_data_hole()
 {
@@ -2603,6 +2745,9 @@ _check_test_fs()
     9p)
        # no way to check consistency for 9p
        ;;
+    virtiofs)
+       # no way to check consistency for virtiofs
+       ;;
     ceph)
        # no way to check consistency for CephFS
        ;;
@@ -2661,6 +2806,9 @@ _check_scratch_fs()
     9p)
        # no way to check consistency for 9p
        ;;
+    virtiofs)
+       # no way to check consistency for virtiofs
+       ;;
     ceph)
        # no way to check consistency for CephFS
        ;;
@@ -2712,7 +2860,7 @@ _full_platform_details()
 {
      local os=`uname -s`
      local host=`hostname -s`
-     local kernel=`uname -r`
+     local kernel=`uname -rv`
      local platform=`uname -m`
      echo "$os/$platform $host $kernel"
 }
@@ -2765,7 +2913,7 @@ _link_out_file()
        local features
 
        if [ $# -eq 0 ]; then
-               features="$(_get_os_name)"
+               features="$(_get_os_name),$FSTYP"
                if [ -n "$MOUNT_OPTIONS" ]; then
                        features=$features,${MOUNT_OPTIONS##"-o "}
                fi
@@ -2963,18 +3111,6 @@ _require_scratch_dev_pool_equal_size()
        done
 }
 
-# We will check if the device is deletable
-_require_deletable_scratch_dev_pool()
-{
-       local i
-       local x
-       for i in $SCRATCH_DEV_POOL; do
-               x=`echo $i | cut -d"/" -f 3`
-               if [ ! -f /sys/class/block/${x}/device/delete ]; then
-                       _notrun "$i is a device which is not deletable"
-               fi
-       done
-}
 
 # Check that fio is present, and it is able to execute given jobfile
 _require_fio()
@@ -3012,7 +3148,7 @@ _require_exportfs()
 # Does shutdown work on this fs?
 _require_scratch_shutdown()
 {
-       [ -x src/godown ] || _notrun "src/godown executable not found"
+       [ -x $here/src/godown ] || _notrun "src/godown executable not found"
 
        _scratch_mkfs > /dev/null 2>&1 || _notrun "_scratch_mkfs failed on $SCRATCH_DEV"
        _scratch_mount
@@ -3023,13 +3159,13 @@ _require_scratch_shutdown()
                        # SCRATCH_DEV, in this case OVL_BASE_SCRATCH_DEV
                        # will be null, so check OVL_BASE_SCRATCH_DEV before
                        # running shutdown to avoid shutting down base fs accidently.
-                       _notrun "$SCRATCH_DEV is not a block device"
+                       _notrun "This test requires a valid $OVL_BASE_SCRATCH_DEV as ovl base fs"
                else
-                       src/godown -f $OVL_BASE_SCRATCH_MNT 2>&1 \
+                       $here/src/godown -f $OVL_BASE_SCRATCH_MNT 2>&1 \
                        || _notrun "Underlying filesystem does not support shutdown"
                fi
        else
-               src/godown -f $SCRATCH_MNT 2>&1 \
+               $here/src/godown -f $SCRATCH_MNT 2>&1 \
                        || _notrun "$FSTYP does not support shutdown"
        fi
 
@@ -3066,7 +3202,7 @@ _require_norecovery()
 # It's possible that TEST_DEV and SCRATCH_DEV have different features (it'd be
 # odd, but possible) so check $TEST_DEV by default, but we can optionall pass
 # any dev we want.
-_require_metadata_journaling()
+_has_metadata_journaling()
 {
        if [ -z $1 ]; then
                local dev=$TEST_DEV
@@ -3075,43 +3211,72 @@ _require_metadata_journaling()
        fi
 
        case "$FSTYP" in
-       ext2|vfat|msdos|udf)
-               _notrun "$FSTYP does not support metadata journaling"
+       ext2|vfat|msdos|udf|exfat)
+               echo "$FSTYP does not support metadata journaling"
+               return 1
                ;;
        ext4)
                # ext4 could be mkfs'd without a journal...
                _require_dumpe2fs
-               $DUMPE2FS_PROG -h $dev 2>&1 | grep -q has_journal || \
-                       _notrun "$FSTYP on $dev not configured with metadata journaling"
+               $DUMPE2FS_PROG -h $dev 2>&1 | grep -q has_journal || {
+                       echo "$FSTYP on $dev not configured with metadata journaling"
+                       return 1
+               }
                # ext4 might not load a journal
-               _exclude_scratch_mount_option "noload"
+               if _normalize_mount_options | grep -qw "noload"; then
+                       echo "mount option \"noload\" not allowed in this test"
+                       return 1
+               fi
                ;;
        overlay)
                # metadata journaling check is based on base filesystem configurations
                # and  because -overlay option saves those configurations to OVL_BASE_*,
                # adding restore/override the configurations before/after the check.
                if [ ! -z $OVL_BASE_FSTYP -a $OVL_BASE_FSTYP != "overlay" ]; then
+                       local ret
+
                        _overlay_config_restore
-                       _require_metadata_journaling
+                       _has_metadata_journaling
+                       ret=$?
                        _overlay_config_override
+                       return $ret
                else
-                       _notrun "No metadata journaling support for legacy overlay setup"
+                       echo "No metadata journaling support for legacy overlay setup"
+                       return 1
                fi
                ;;
        *)
                # by default we pass; if you need to, add your fs above!
                ;;
        esac
+       return 0
+}
+
+_require_metadata_journaling()
+{
+       local msg=$(_has_metadata_journaling $@)
+       if [ -n "$msg" ]; then
+               _notrun "$msg"
+       fi
 }
 
 _count_extents()
 {
-       $XFS_IO_PROG -c "fiemap" $1 | tail -n +2 | grep -v hole | wc -l
+       $XFS_IO_PROG -r -c "fiemap" $1 | tail -n +2 | grep -v hole | wc -l
+}
+
+# Similar to _count_extents() but if any extent is shared multiples times in
+# the file (reflinked to different file offsets), it is accounted as 1 extent
+# instead of N extents.
+_count_exclusive_extents()
+{
+       $XFS_IO_PROG -r -c "fiemap" $1 | tail -n +2 | grep -v hole | \
+               cut -d ' ' -f 3 | sort | uniq | wc -l
 }
 
 _count_holes()
 {
-       $XFS_IO_PROG -c "fiemap" $1 | tail -n +2 | grep hole | wc -l
+       $XFS_IO_PROG -r -c "fiemap" $1 | tail -n +2 | grep hole | wc -l
 }
 
 _count_attr_extents()
@@ -3246,9 +3411,12 @@ _exclude_scratch_mount_option()
 _require_atime()
 {
        _exclude_scratch_mount_option "noatime"
-       if [ "$FSTYP" == "nfs" ]; then
-               _notrun "atime related mount options have no effect on NFS"
-       fi
+       case $FSTYP in
+       nfs|cifs)
+               _notrun "atime related mount options have no effect on $FSTYP"
+               ;;
+       esac
+
 }
 
 _require_relatime()
@@ -3261,8 +3429,8 @@ _require_relatime()
 
 _require_userns()
 {
-       [ -x src/nsexec ] || _notrun "src/nsexec executable not found"
-       src/nsexec -U true 2>/dev/null || _notrun "userns not supported by this kernel"
+       [ -x $here/src/nsexec ] || _notrun "src/nsexec executable not found"
+       $here/src/nsexec -U true 2>/dev/null || _notrun "userns not supported by this kernel"
 }
 
 _create_loop_device()
@@ -3289,7 +3457,7 @@ _scale_fsstress_args()
         esac
         shift
     done
-    echo $args
+    printf '%s\n' "$args"
 }
 
 #
@@ -3313,7 +3481,7 @@ run_check()
        "$@" >> $seqres.full 2>&1 || _fail "failed: '$@'"
 }
 
-_require_test_symlinks()
+_require_symlinks()
 {
        local target=`mktemp -p $TEST_DIR`
        local link=`mktemp -p $TEST_DIR -u`
@@ -3325,6 +3493,18 @@ _require_test_symlinks()
        rm -f $target $link
 }
 
+_require_hardlinks()
+{
+       local target=`mktemp -p $TEST_DIR`
+       local link=`mktemp -p $TEST_DIR -u`
+       ln $target $link
+       if [ "$?" -ne 0 ]; then
+               rm -f $target
+               _notrun "No hardlink support"
+       fi
+       rm -f $target $link
+}
+
 _require_test_fcntl_advisory_locks()
 {
        [ "$FSTYP" != "cifs" ] && return 0
@@ -3333,6 +3513,14 @@ _require_test_fcntl_advisory_locks()
                _notrun "Require fcntl advisory locks support"
 }
 
+_require_test_fcntl_setlease()
+{
+       _require_test_program "locktest"
+       touch $TEST_DIR/setlease_testfile
+       $here/src/locktest -t $TEST_DIR/setlease_testfile >/dev/null 2>&1
+       [ $? -eq 22 ] && _notrun "Require fcntl setlease support"
+}
+
 _require_ofd_locks()
 {
        # Give a test run by getlk wrlck on testfile.
@@ -3340,7 +3528,7 @@ _require_ofd_locks()
        # EINVAL will be returned.
        _require_test_program "t_ofd_locks"
        touch $TEST_DIR/ofd_testfile
-       src/t_ofd_locks -t $TEST_DIR/ofd_testfile > /dev/null 2>&1
+       $here/src/t_ofd_locks -t $TEST_DIR/ofd_testfile > /dev/null 2>&1
        [ $? -eq 22 ] && _notrun "Require OFD locks support"
 }
 
@@ -3433,7 +3621,7 @@ _get_available_space()
 # return device size in kb
 _get_device_size()
 {
-       grep `_short_dev $1` /proc/partitions | awk '{print $3}'
+       grep -w `_short_dev $1` /proc/partitions | awk '{print $3}'
 }
 
 # Make sure we actually have dmesg checking set up.
@@ -3461,6 +3649,16 @@ _check_dmesg_for()
        _dmesg_since_test_start | egrep -q "$1"
 }
 
+# Default filter for dmesg scanning.
+# Ignore lockdep complaining about its own bugginess when scanning dmesg
+# output, because we shouldn't be failing filesystem tests on account of
+# lockdep.
+_check_dmesg_filter()
+{
+       egrep -v -e "BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low" \
+               -e "BUG: MAX_STACK_TRACE_ENTRIES too low"
+}
+
 # check dmesg log for WARNING/Oops/etc.
 _check_dmesg()
 {
@@ -3472,12 +3670,12 @@ _check_dmesg()
        # default filter is a simple cat command, caller could provide a
        # customized filter and pass the name through the first argument, to
        # filter out intentional WARNINGs or Oopses
-       local filter=${1:-cat}
+       local filter=${1:-_check_dmesg_filter}
 
        _dmesg_since_test_start | $filter >$seqres.dmesg
        egrep -q -e "kernel BUG at" \
             -e "WARNING:" \
-            -e "BUG:" \
+            -e "\bBUG:" \
             -e "Oops:" \
             -e "possible recursive locking detected" \
             -e "Internal error" \
@@ -3491,7 +3689,9 @@ _check_dmesg()
                _dump_err "_check_dmesg: something found in dmesg (see $seqres.dmesg)"
                return 1
        else
-               rm -f $seqres.dmesg
+               if [ "$KEEP_DMESG" != "yes" ]; then
+                       rm -f $seqres.dmesg
+               fi
                return 0
        fi
 }
@@ -3499,7 +3699,7 @@ _check_dmesg()
 # capture the kmemleak report
 _capture_kmemleak()
 {
-       local kern_knob="${DEBUGFS_MNT}/kmemleak"
+       local kern_knob="$DEBUGFS_MNT/kmemleak"
        local leak_file="$1"
 
        # Tell the kernel to scan for memory leaks.  Apparently the write
@@ -3520,10 +3720,20 @@ ENDL
        echo "clear" > "$kern_knob"
 }
 
-# set up kmemleak
-_init_kmemleak()
+# Figure out if the running kernel supports kmemleak; if it does, clear out
+# anything that leaked before we even started testing.  The leak checker only
+# needs to be primed like this once per ./check invocation.
+_detect_kmemleak()
 {
-       local kern_knob="${DEBUGFS_MNT}/kmemleak"
+       local kern_knob="$DEBUGFS_MNT/kmemleak"
+       KMEMLEAK_CHECK_FILE="/tmp/check_kmemleak"
+
+       # Since kernel v4.19-rc3, the kmemleak knob exists even if kmemleak is
+       # disabled, but returns EBUSY on write. So instead of relying on
+       # existance of writable knob file, we use a test file to indicate that
+       # _check_kmemleak() is enabled only if we actually managed to write to
+       # the knob file.
+       rm -f "$KMEMLEAK_CHECK_FILE"
 
        if [ ! -w "$kern_knob" ]; then
                return 0
@@ -3531,17 +3741,28 @@ _init_kmemleak()
 
        # Disable the automatic scan so that we can control it completely,
        # then dump all the leaks recorded so far.
-       echo "scan=off" > "$kern_knob"
-       _capture_kmemleak /dev/null
+       if echo "scan=off" > "$kern_knob" 2>/dev/null; then
+               _capture_kmemleak /dev/null
+               touch "$KMEMLEAK_CHECK_FILE"
+       fi
 }
 
-# check kmemleak log
+# Kick the kmemleak checker to scan for leaks.  Background leak scan mode is
+# not enabled, so we must call the kernel to ask for a scan and deal with the
+# results appropriately.  This we do after every test completes, whether or not
+# it was successful.
 _check_kmemleak()
 {
-       local kern_knob="${DEBUGFS_MNT}/kmemleak"
-       local leak_file="${seqres}.kmemleak"
+       local kern_knob="$DEBUGFS_MNT/kmemleak"
+       local leak_file="$seqres.kmemleak"
 
-       if [ ! -w "$kern_knob" ]; then
+       if [ ! -f "$KMEMLEAK_CHECK_FILE" ]; then
+               return 0
+       fi
+
+       # Not enabled, so discard any report of leaks found.
+       if [ "$USE_KMEMLEAK" != "yes" ]; then
+               _capture_kmemleak /dev/null
                return 0
        fi
 
@@ -3564,10 +3785,6 @@ _disable_dmesg_check()
 
 init_rc()
 {
-       if [ "$iam" == new ]
-       then
-               return
-       fi
        # make some further configuration checks here
        if [ "$TEST_DEV" = ""  ]
        then
@@ -3792,6 +4009,206 @@ _require_scratch_feature()
        esac
 }
 
+# Get the maximum size of a file in $TEST_DIR (s_maxbytes).  On ext4 this will
+# be UINT32_MAX * block_size, but other filesystems may allow up to LLONG_MAX.
+_get_max_file_size()
+{
+       local testfile=$TEST_DIR/maxfilesize.$seq
+       local l=0
+       local r=9223372036854775807 # LLONG_MAX
+
+       rm -f $testfile
+       while (( l < r )); do
+               # Use _math() to avoid signed integer overflow.
+               local m=$(_math "($l + $r + 1) / 2")
+               if $XFS_IO_PROG -f -c "truncate $m" $testfile \
+                       |& grep -q 'File too large'
+               then
+                       r=$(( m - 1 ))
+               else
+                       l=$m
+               fi
+       done
+       echo $l
+}
+
+# get MAX_LFS_FILESIZE
+_get_max_lfs_filesize()
+{
+       case "$(getconf LONG_BIT)" in
+       "32")
+               local ulong_max=$(getconf ULONG_MAX)
+               local page_size=$(getconf PAGE_SIZE)
+               echo $(( ulong_max * page_size ))
+               ;;
+       "64")
+               echo 9223372036854775807
+               ;;
+       *)
+               _fail "sizeof(long) == $(getconf LONG_BIT)?"
+               ;;
+       esac
+}
+
+# The maximum filesystem label length, /not/ including terminating NULL
+_label_get_max()
+{
+       case $FSTYP in
+       xfs)
+               echo 12
+               ;;
+       btrfs)
+               echo 255
+               ;;
+       f2fs)
+               echo 255
+               ;;
+       *)
+               _notrun "$FSTYP does not define maximum label length"
+               ;;
+       esac
+}
+
+# Helper to check above early in a script
+_require_label_get_max()
+{
+       # Just call _label_get_max which will notrun if appropriate
+       dummy=$(_label_get_max)
+}
+
+_dmsetup_remove()
+{
+       $UDEV_SETTLE_PROG >/dev/null 2>&1
+       $DMSETUP_PROG remove "$@" >>$seqres.full 2>&1
+       $DMSETUP_PROG mknodes >/dev/null 2>&1
+}
+
+_dmsetup_create()
+{
+       $DMSETUP_PROG create "$@" >>$seqres.full 2>&1 || return 1
+       $DMSETUP_PROG mknodes >/dev/null 2>&1
+       $UDEV_SETTLE_PROG >/dev/null 2>&1
+}
+
+_require_btime()
+{
+       # Note: filesystems are not required to report btime (creation time)
+       # if the caller doesn't ask for it, so we define STATX_BTIME here and
+       # pass it in to the statx command.
+       export STATX_BTIME=0x800
+       $XFS_IO_PROG -f $TEST_DIR/test_creation_time -c "statx -m $STATX_BTIME -v" \
+               | grep btime >>$seqres.full 2>&1 || \
+               _notrun "inode creation time not supported by this filesystem"
+       rm -f $TEST_DIR/test_creation_time
+}
+
+_require_scratch_btime()
+{
+       _require_scratch
+       _scratch_mkfs > /dev/null 2>&1
+       _scratch_mount
+
+       # Note: filesystems are not required to report btime (creation time)
+       # if the caller doesn't ask for it, so we define STATX_BTIME here and
+       # pass it in to the statx command.
+       export STATX_BTIME=0x800
+       $XFS_IO_PROG -f $SCRATCH_MNT/test_creation_time -c "statx -m $STATX_BTIME -v" \
+               | grep btime >>$seqres.full 2>&1 || \
+               _notrun "inode creation time not supported by this filesystem"
+
+       _scratch_unmount
+}
+
+_require_inode_limits()
+{
+       if [ $(_get_free_inode $TEST_DIR) -eq 0 ]; then
+               _notrun "$FSTYP does not have a fixed number of inodes available"
+       fi
+}
+
+_require_filefrag_options()
+{
+       _require_command "$FILEFRAG_PROG" filefrag
+
+       local options=$1
+       local file="$TEST_DIR/options_testfile"
+
+       echo "XX" > $file
+       ${FILEFRAG_PROG} -$options $file 2>&1 | grep -q "invalid option" && \
+               _notrun "filefrag doesn't support $options option"
+       rm -f $file
+}
+
+_require_fibmap()
+{
+       _require_filefrag_options "B"
+
+       local file="$TEST_DIR/fibmap_testfile"
+
+       echo "XX" > $file
+       ${FILEFRAG_PROG} -B $file 2>&1 | grep -q "FIBMAP[[:space:]]*unsupported"
+       if [ $? -eq 0 ]; then
+               _notrun "FIBMAP not supported by this filesystem"
+       fi
+       rm -f $file
+}
+
+_try_wipe_scratch_devs()
+{
+       test -x "$WIPEFS_PROG" || return 0
+
+       # Do specified filesystem wipe at first
+       case "$FSTYP" in
+       "xfs")
+               _try_wipe_scratch_xfs
+               ;;
+       esac
+
+       # Then do wipefs on all scratch devices
+       for dev in $SCRATCH_DEV_POOL $SCRATCH_DEV $SCRATCH_LOGDEV $SCRATCH_RTDEV; do
+               test -b $dev && $WIPEFS_PROG -a $dev
+       done
+}
+
+# Only run this on xfs if xfs_scrub is available and has the unicode checker
+_check_xfs_scrub_does_unicode() {
+       [ "${FSTYP}" == "xfs" ] || return 1
+
+       local mount="$1"
+       local dev="$2"
+
+       _supports_xfs_scrub "${mount}" "${dev}" || return 1
+
+       # We only care if xfs_scrub has unicode string support...
+       if ! type ldd > /dev/null 2>&1 || \
+          ! ldd "${XFS_SCRUB_PROG}" | grep -q libicui18n; then
+               return 1
+       fi
+
+       return 0
+}
+
+# exfat timestamps start at 1980 and cannot be prior to epoch
+_require_negative_timestamps() {
+       case "$FSTYP" in
+       ceph|exfat)
+               _notrun "$FSTYP does not support negative timestamps"
+               ;;
+       esac
+}
+
+# Require the 'accton' userspace tool and CONFIG_BSD_PROCESS_ACCT=y.
+_require_bsd_process_accounting()
+{
+       _require_command "$ACCTON_PROG" accton
+       $ACCTON_PROG on &> $tmp.test_accton
+       cat $tmp.test_accton >> $seqres.full
+       if grep 'Function not implemented' $tmp.test_accton; then
+               _notrun "BSD process accounting support unavailable"
+       fi
+       $ACCTON_PROG off >> $seqres.full
+}
+
 init_rc
 
 ################################################################################