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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 SUSE. All Rights Reserved.
#
# FS QA Test No. btrfs/085
#
# Tests to ensure that orphan items are properly created and cleaned up
# on next mount.
#
# There are three cases where orphan items may be cleaned up:
# 1) Default subvolume is fs tree root (mkfs default)
# 2) Default subvolume is explicitly created subvolume
# (i.e. btrfs subvol set-default)
# 3) Non-default subvolume lookup
#
. ./common/preamble
_begin_fstest auto quick metadata subvol
# Override the default cleanup function.
_cleanup()
{
_cleanup_flakey
rm -f $tmp.*
}
. ./common/filter
. ./common/dmflakey
_supported_fs btrfs
_require_scratch
_require_dm_target flakey
_require_btrfs_command inspect-internal dump-tree
has_orphan_item()
{
INO=$1
if $BTRFS_UTIL_PROG inspect-internal dump-tree $FLAKEY_DEV | \
grep -q "key (ORPHAN ORPHAN_ITEM $INO)"; then
return 0
fi
return 1
}
test_orphan()
{
PRECMD=$1
SUB=0
_scratch_mkfs >> $seqres.full 2>&1
_init_flakey
_mount_flakey
$PRECMD
TESTPATH=$SCRATCH_MNT/testdir/testfile
DIR=$(dirname $TESTPATH)
[ -d "$DIR" ] || mkdir -p $DIR
SIZE=$(( 1024 * 1024 ))
run_check dd if=/dev/zero of=$TESTPATH bs=$SIZE count=1
INO=$(stat -c %i $TESTPATH)
# Orphan item won't be created if the file doesn't make it to disk
sync
# Open and delete the file
exec 27<$TESTPATH
rm -f $TESTPATH
# Ensure the unlink (and orphan item creation) hits the disk
sync
# Turn off writes before closing so the orphan item will be left behind
_load_flakey_table $FLAKEY_DROP_WRITES
# Close the file so we can umount
exec 27>&-
# Orphan item should be on disk if operating correctly
_unmount_flakey
_load_flakey_table $FLAKEY_ALLOW_WRITES
if ! has_orphan_item $INO; then
echo "ERROR: No orphan item found after umount."
return
fi
_mount_flakey
# If $DIR is a subvolume, this will cause a lookup and orphan cleanup
(cd $DIR; true)
# Orphan item will be cleaned up during mount but won't be on
# disk until there's a sync.
sync
_unmount_flakey
if has_orphan_item $INO; then
echo "ERROR: Orphan item found after successful mount/sync."
fi
_cleanup_flakey
}
new_subvolume()
{
_btrfs subvolume create $SCRATCH_MNT/testdir
}
new_default()
{
new_subvolume
SUB=$($BTRFS_UTIL_PROG subvolume list $SCRATCH_MNT | $AWK_PROG '{print $2}')
_btrfs subvolume set-default $SUB $SCRATCH_MNT
_unmount_flakey
_mount_flakey
}
echo "Testing with fs root as default subvolume"
test_orphan true
echo "Testing with explicit default subvolume"
test_orphan new_default
echo "Testing with orphan on non-default subvolume"
test_orphan new_subvolume
status=0
exit
|
