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lvm2/test/t-lvextend-snapshot-dmeventd.sh
Petr Rockai 1b7c4b9bce Substantial rework of the functional test support code. Some new features:
- somewhat neater, more consistent and more readable output
- possible to set any lvm.conf value: aux lvmconf "section/key = value"
- LVM_TEST_NODEBUG to suppress the (lengthy) "## DEBUG" output
- back-substitution on test output ($TESTDIR/$PREFIX -> @TESTDIR@/@PREFIX@)
- support code moved from test/ to test/lib/ --> less clutter
2011-01-05 00:16:18 +00:00

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#!/bin/bash
# Copyright (C) 2010 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# 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
. lib/test
extend() {
lvextend --use-policies --config "activation { snapshot_extend_threshold = $1 }" $vg/snap
}
write() {
mount $DM_DEV_DIR/$vg/snap mnt
dd if=/dev/zero of=mnt/file$1 bs=1k count=$2
umount mnt
}
percent() {
lvs $vg/snap -o snap_percent --noheadings | cut -c4- | cut -d. -f1
}
which mkfs.ext2 || exit 200
aux prepare_vg 2
aux prepare_dmeventd
lvcreate -l 8 -n base $vg
mkfs.ext2 $DM_DEV_DIR/$vg/base
lvcreate -s -l 4 -n snap $vg/base
lvchange --monitor y $vg/snap
mkdir mnt
write 1 4096
pre=`percent`
sleep 10 # dmeventd only checks every 10 seconds :(
post=`percent`
test $pre = $post
write 2 5000
pre=`percent`
sleep 10 # dmeventd only checks every 10 seconds :(
post=`percent`
test $pre -gt $post