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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2024 Oracle. All Rights Reserved.
#
# FS QA Test 311
#
# Mount the device twice check if the reflink works, this helps to
# ensure device is mounted as the same device.
#
. ./common/preamble
_begin_fstest auto quick subvol tempfsid
# Override the default cleanup function.
_cleanup()
{
cd /
$UMOUNT_PROG $mnt1 > /dev/null 2>&1
rm -r -f $tmp.*
rm -r -f $mnt1
}
. ./common/filter.btrfs
. ./common/reflink
_supported_fs btrfs
_require_cp_reflink
_require_scratch
_require_btrfs_fs_feature temp_fsid
mnt1=$TEST_DIR/$seq/mnt1
mkdir -p $mnt1
same_dev_mount()
{
echo ---- $FUNCNAME ----
_scratch_mkfs >> $seqres.full 2>&1
_scratch_mount
$XFS_IO_PROG -fc 'pwrite -S 0x61 0 9000' $SCRATCH_MNT/foo | \
_filter_xfs_io
echo Mount the device again to a different mount point
_mount $SCRATCH_DEV $mnt1
_cp_reflink $SCRATCH_MNT/foo $mnt1/bar
echo Checksum of reflinked files
md5sum $SCRATCH_MNT/foo | _filter_scratch
md5sum $mnt1/bar | _filter_test_dir
check_fsid $SCRATCH_DEV
}
same_dev_subvol_mount()
{
echo ---- $FUNCNAME ----
_scratch_mkfs >> $seqres.full 2>&1
_scratch_mount
$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/subvol | _filter_scratch
$XFS_IO_PROG -fc 'pwrite -S 0x61 0 9000' $SCRATCH_MNT/subvol/foo | \
_filter_xfs_io
echo Mounting a subvol
_mount -o subvol=subvol $SCRATCH_DEV $mnt1
_cp_reflink $SCRATCH_MNT/subvol/foo $mnt1/bar
echo Checksum of reflinked files
md5sum $SCRATCH_MNT/subvol/foo | _filter_scratch
md5sum $mnt1/bar | _filter_test_dir
check_fsid $SCRATCH_DEV
}
same_dev_mount
_scratch_unmount
_cleanup
mkdir -p $mnt1
same_dev_subvol_mount
# success, all done
status=0
exit
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