tests/generic/103

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Red Hat, Inc.  All Rights Reserved.
#
# FSQA Test No. 103
#
# Test attribute fork teardown. This test is inspired by a regression in XFS
# that resulted in problematic removal of inodes with remote attribute forks
# without attribute extents. The attribute fork condition is created by
# attempting to set larger attribute values on a filesystem that is at or near
# ENOSPC.
#
. ./common/preamble
_begin_fstest auto quick attr enospc

_register_cleanup "_cleanup" 25

# Import common functions.
. ./common/attr

# real QA test starts here
_supported_fs generic
_require_scratch
_require_attrs
_require_xfs_io_command "falloc"

_consume_freesp()
{
	file=$1
	left=512

	# consume nearly all available space (leave ~512kB)
	avail=`_get_available_space $SCRATCH_MNT`

	# f2fs uses index(radix) tree as mapping metadata, its space overhead
	# is about one thousandth of the data
	if [ $FSTYP == "f2fs" ]; then
		left=$((left + avail / 1024000))
	fi

	filesizekb=$((avail / 1024 - $left))
	$XFS_IO_PROG -fc "falloc 0 ${filesizekb}k" $file
}

_scratch_mkfs >> $seqres.full 2>&1
_scratch_mount

for i in $(seq 0 63); do
	touch $SCRATCH_MNT/$seq.$i
done

# Generate a large attribute value and consume the rest of the space in the
# filesystem.
$XFS_IO_PROG -fc "pwrite 0 64k" $SCRATCH_MNT/attrval > /dev/null 2>&1
_consume_freesp $SCRATCH_MNT/spc

# Set attributes on the test files. These should start to hit ENOSPC.
for i in $(seq 0 63); do
	$SETFATTR_PROG -n user.test -v "`cat $SCRATCH_MNT/attrval`" \
		$SCRATCH_MNT/$seq.$i >> $seqres.full 2>&1
done

# Remove the files with attributes to test attribute fork teardown. Problems
# result in dmesg output.
rm -f $SCRATCH_MNT/$seq.*

echo Silence is golden.

status=0
exit