| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2011 Red Hat. All Rights Reserved. |
| # |
| # FS QA Test No. btrfs/001 |
| # |
| # Test btrfs's subvolume and snapshot support |
| # |
| . ./common/preamble |
| _begin_fstest auto quick subvol snapshot |
| |
| . ./common/filter |
| . ./common/filter.btrfs |
| |
| _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 |
| 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_UTIL_PROG 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" |
| subvolid=$(_btrfs_get_subvolid $SCRATCH_MNT subvol) |
| $BTRFS_UTIL_PROG subvolume set-default $subvolid $SCRATCH_MNT | _filter_scratch |
| _scratch_cycle_mount |
| 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_UTIL_PROG subvolume set-default 0 $SCRATCH_MNT | _filter_scratch |
| _scratch_cycle_mount |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| |
| # Test listing the subvolumes |
| echo "Listing subvolumes" |
| $BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{ print $NF }' |
| |
| # Delete the snapshot |
| $BTRFS_UTIL_PROG subvolume delete $SCRATCH_MNT/snap | _filter_btrfs_subvol_delete |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| _scratch_cycle_mount |
| echo "List root dir" |
| ls $SCRATCH_MNT |
| |
| status=0 ; exit |
