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git://sourceware.org/git/lvm2.git
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128 lines
3.1 KiB
Bash
128 lines
3.1 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2019 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# no automatic extensions, just umount
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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mntdir="${PREFIX}mnt with space"
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PERCENT=70
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cleanup_mounted_and_teardown()
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{
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test -z "$PID_SLEEP" || { kill "$PID_SLEEP" || true ; }
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umount "$mntdir" 2>/dev/null || true
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vgremove -ff $vg
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aux teardown
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}
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is_lv_opened_()
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{
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test "$(get lv_field "$1" lv_device_open --binary)" = 1
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}
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#
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# Main
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#
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which mkfs.ext4 || skip
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export MKE2FS_CONFIG="$TESTDIR/lib/mke2fs.conf"
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aux have_vdo 6 2 0 || skip
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# Simple implementation of umount when lvextend fails
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# Script enforces failing exit, so dmeventd tries several times
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# repeatedly to invoke this for given percentage
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cat <<- EOF >testcmd.sh
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#!/bin/sh
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echo "VDO Pool: \$DMEVENTD_VDO_POOL"
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"$TESTDIR/lib/lvextend" --use-policies \$1 || {
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umount "$mntdir" && exit 0
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touch $PWD/TRIED_UMOUNT
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}
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test "\$($TESTDIR/lib/lvs -o selected -S "data_percent>=$PERCENT" --noheadings \$1)" -eq 0 || {
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echo "Percentage still above $PERCENT"
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}
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exit 1
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EOF
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chmod +x testcmd.sh
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# Show prepared script
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cat testcmd.sh
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# Use autoextend percent 0 - so extension fails and triggers umount...
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aux lvmconf "activation/vdo_pool_autoextend_percent = 0" \
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"activation/vdo_pool_autoextend_threshold = $PERCENT" \
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"dmeventd/vdo_command = \"$PWD/testcmd.sh\"" \
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"allocation/vdo_slab_size_mb = 128"
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aux prepare_dmeventd
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aux prepare_vg 1 9000
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lvcreate --vdo -L4G -V2G -n $lv1 $vg/vpool
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mkfs.ext4 -E nodiscard "$DM_DEV_DIR/$vg/$lv1"
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lvchange --monitor y $vg/vpool
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mkdir "$mntdir"
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trap 'cleanup_mounted_and_teardown' EXIT
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mount "$DM_DEV_DIR/$vg/$lv1" "$mntdir"
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# Check both LV is opened (~mounted)
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is_lv_opened_ "$vg/$lv1"
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touch "$mntdir/file$$"
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sync
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# Running 'keeper' process sleep holds the block device still in use
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sleep 60 < "$mntdir/file$$" >/dev/null 2>&1 &
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PID_SLEEP=$!
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lvs -a $vg
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# Fill pool above 95% (to cause 'forced lazy umount)
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dd if=/dev/urandom of="$mntdir/file$$" bs=256K count=200 oflag=direct
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lvs -a $vg
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# Could loop here for a few secs so dmeventd can do some work
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# In the worst case check only happens every 10 seconds :(
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for i in $(seq 1 12) ; do
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is_lv_opened_ "$vg/$lv1" || break
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test ! -f "TRIED_UMOUNT" || continue # finish loop quickly
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sleep 1
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done
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rm -f "TRIED_UMOUNT"
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test "$i" -eq 12 || die "$mntdir should NOT have been unmounted by dmeventd!"
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lvs -a $vg
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# Kill device holding process - umount should work now
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kill "$PID_SLEEP"
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PID_SLEEP=
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wait
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# Could loop here for a few secs so dmeventd can do some work
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# In the worst case check only happens every 10 seconds :(
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for i in $(seq 1 12) ; do
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is_lv_opened_ "$vg/$lv1" || break
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test "$i" -lt 12 || die "$mntdir should have been unmounted by dmeventd!"
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sleep 1
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done
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# vgremove is managed through cleanup_mounted_and_teardown()
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