| #! /bin/bash |
| # FS QA Test No. 254 |
| # |
| # Test btrfs's subvolume and snapshot support |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2011 Red Hat. 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. |
| # |
| # This program is distributed in the hope that it would 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 the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| # |
| #----------------------------------------------------------------------- |
| # |
| # creator |
| owner=josef@redhat.com |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| rm -f $tmp.* |
| } |
| |
| trap "_cleanup ; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| |
| # real QA test starts here |
| _supported_fs btrfs |
| _supported_os Linux |
| _require_scratch |
| |
| _scratch_mkfs > /dev/null 2>&1 |
| _scratch_mount |
| |
| # First test basic snapshotting |
| echo "Creating file foo in root dir" |
| dd if=/dev/zero of=$SCRATCH_MNT/foo bs=1M count=1 &> /dev/null |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| echo "Creating snapshot of root dir" |
| btrfs subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | _filter_scratch |
| echo "List root dir after snapshot" |
| ls $SCRATCH_MNT |
| echo "List snapshot dir" |
| ls $SCRATCH_MNT/snap |
| rm -f $SCRATCH_MNT/foo |
| echo "List root dir after rm of foo" |
| ls $SCRATCH_MNT |
| echo "List snapshot dir" |
| ls $SCRATCH_MNT/snap |
| |
| # Test creating a normal subvolme |
| btrfs subvolume create $SCRATCH_MNT/subvol | _filter_scratch |
| echo "Listing root dir" |
| ls $SCRATCH_MNT |
| echo "Listing subvol" |
| ls $SCRATCH_MNT/subvol |
| |
| # Test setting a default mount |
| echo "Creating file bar in subvol" |
| dd if=/dev/zero of=$SCRATCH_MNT/subvol/bar bs=1M count=1 &> /dev/null |
| echo "Setting subvol to the default" |
| btrfs subvolume set-default $SCRATCH_MNT/subvol $SCRATCH_MNT/subvol | _filter_scratch |
| _scratch_remount |
| echo "List root dir which is now subvol" |
| ls $SCRATCH_MNT |
| _scratch_unmount |
| echo "Mounting sbuvolid=0 for the root dir" |
| _scratch_mount "-o subvolid=0" |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| echo "Setting the root dir as the default again" |
| btrfs subvolume set-default $SCRATCH_MNT $SCRATCH_MNT | _filter_scratch |
| _scratch_remount |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| |
| # Test listing the subvolumes |
| echo "Listing subvolumes" |
| btrfs subvolume list $SCRATCH_MNT | _filter_scratch |
| |
| # Delete the snapshot |
| btrfs subvolume delete $SCRATCH_MNT/snap | _filter_scratch |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| _scratch_remount |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| |
| status=0 ; exit |