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Theodore Ts'o
76c21d6815
This makes it clear when we are using "mount ; umount" versus "mount
-o remount" for most file systems. The reason for this distinction is
(a) tests may want to test the difference between what happens on the
remount versus the munt paths, (b) with tmpfs, "mount ; umount" will
cause the contents of all of the files to disappear which makes many
tests sad, and (c) some mount options may not be changed using "mount
-o remount".
Currently _scratch_mount performs "_scratch_mount ; _scratch_umount"
so mechnically rename this function to _scratch_cycle_mount. This was
done mechnically using the script fragment:
git grep "_scratch_remount" | \
awk -F: '{print $1}' | sort -u | \
xargs sed -i 's/_scratch_remount/_scratch_cycle_mount/g'
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
110 lines
3.0 KiB
Bash
Executable File
110 lines
3.0 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. btrfs/001
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#
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# Test btrfs's subvolume and snapshot support
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2011 Red Hat. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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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 the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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rm -f $tmp.*
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}
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trap "_cleanup ; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/filter.btrfs
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# real QA test starts here
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch
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_scratch_mkfs > /dev/null 2>&1
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_scratch_mount
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# First test basic snapshotting
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echo "Creating file foo in root dir"
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dd if=/dev/zero of=$SCRATCH_MNT/foo bs=1M count=1 &> /dev/null
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echo "List root dir"
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ls $SCRATCH_MNT
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echo "Creating snapshot of root dir"
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$BTRFS_UTIL_PROG subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap | _filter_scratch
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echo "List root dir after snapshot"
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ls $SCRATCH_MNT
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echo "List snapshot dir"
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ls $SCRATCH_MNT/snap
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rm -f $SCRATCH_MNT/foo
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echo "List root dir after rm of foo"
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ls $SCRATCH_MNT
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echo "List snapshot dir"
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ls $SCRATCH_MNT/snap
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# Test creating a normal subvolme
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$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol | _filter_scratch
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echo "Listing root dir"
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ls $SCRATCH_MNT
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echo "Listing subvol"
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ls $SCRATCH_MNT/subvol
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# Test setting a default mount
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echo "Creating file bar in subvol"
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dd if=/dev/zero of=$SCRATCH_MNT/subvol/bar bs=1M count=1 &> /dev/null
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echo "Setting subvol to the default"
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subvolid=$(_btrfs_get_subvolid $SCRATCH_MNT subvol)
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$BTRFS_UTIL_PROG subvolume set-default $subvolid $SCRATCH_MNT | _filter_scratch
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_scratch_cycle_mount
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echo "List root dir which is now subvol"
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ls $SCRATCH_MNT
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_scratch_unmount
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echo "Mounting sbuvolid=0 for the root dir"
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_scratch_mount "-o subvolid=0"
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echo "List root dir"
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ls $SCRATCH_MNT
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echo "Setting the root dir as the default again"
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$BTRFS_UTIL_PROG subvolume set-default 0 $SCRATCH_MNT | _filter_scratch
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_scratch_cycle_mount
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echo "List root dir"
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ls $SCRATCH_MNT
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# Test listing the subvolumes
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echo "Listing subvolumes"
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$BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | awk '{ print $NF }'
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# Delete the snapshot
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$BTRFS_UTIL_PROG subvolume delete $SCRATCH_MNT/snap | _filter_btrfs_subvol_delete
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echo "List root dir"
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ls $SCRATCH_MNT
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_scratch_cycle_mount
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echo "List root dir"
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ls $SCRATCH_MNT
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status=0 ; exit
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