#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016, Oracle and/or its affiliates.  All Rights Reserved.
#
# FS QA Test No. 271
#
# Check that getfsmap reports the AG metadata we're expecting.
#
seq=`basename "$0"`
seqres="$RESULT_DIR/$seq"
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1    # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -rf "$tmp".* $TEST_DIR/fsmap $TEST_DIR/testout
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter

# real QA test starts here
_supported_fs xfs
_require_xfs_scratch_rmapbt
_require_xfs_io_command "fsmap"

rm -f "$seqres.full"

echo "Format and mount"
_scratch_mkfs > "$seqres.full" 2>&1
_scratch_mount

agcount=$(_xfs_mount_agcount $SCRATCH_MNT)

# mkfs lays out btree root blocks in the order bnobt, cntbt, inobt, finobt,
# rmapbt, refcountbt, and then allocates AGFL blocks.  Since GETFSMAP has the
# same owner (per-AG metadata) for rmap btree blocks and blocks on the AGFL and
# the reverse mapping index merges records, the number of per-AG extents
# reported will vary depending on whether the refcount btree is enabled.
$XFS_INFO_PROG $SCRATCH_MNT | grep -q reflink=1
has_reflink=$(( 1 - $? ))
perag_metadata_exts=2
test $has_reflink -gt 0 && perag_metadata_exts=$((perag_metadata_exts + 1))

echo "Get fsmap" | tee -a $seqres.full
$XFS_IO_PROG -c 'fsmap -v' $SCRATCH_MNT > $TEST_DIR/fsmap
cat $TEST_DIR/fsmap >> $seqres.full

echo "Check AG header" | tee -a $seqres.full
grep 'static fs metadata[[:space:]]*[0-9]*[[:space:]]*(0\.\.' $TEST_DIR/fsmap | tee -a $seqres.full > $TEST_DIR/testout
_within_tolerance "AG header count" $(wc -l < $TEST_DIR/testout) $agcount 0 -v

echo "Check freesp/rmap btrees" | tee -a $seqres.full
grep 'per-AG metadata[[:space:]]*[0-9]*[[:space:]]*([0-9]*\.\.' $TEST_DIR/fsmap | tee -a $seqres.full > $TEST_DIR/testout
_within_tolerance "freesp extent count" $(wc -l < $TEST_DIR/testout) $((agcount * perag_metadata_exts)) 0 999999 -v

echo "Check inode btrees" | tee -a $seqres.full
grep 'inode btree[[:space:]]*[0-9]*[[:space:]]*([0-9]*\.\.' $TEST_DIR/fsmap | tee -a $seqres.full > $TEST_DIR/testout
_within_tolerance "inode btree extent count" $(wc -l < $TEST_DIR/testout) $agcount 0 -v

echo "Check inodes" | tee -a $seqres.full
grep 'inodes[[:space:]]*[0-9]*[[:space:]]*([0-9]*\.\.' $TEST_DIR/fsmap | tee -a $seqres.full > $TEST_DIR/testout
_within_tolerance "inode extent count" $(wc -l < $TEST_DIR/testout) 1 0 999999 -v

echo "Check journal" | tee -a $seqres.full
grep 'journalling log' $TEST_DIR/fsmap | tee -a $seqres.full > $TEST_DIR/testout
_within_tolerance "journal extent count" $(wc -l < $TEST_DIR/testout) 1 0 -v

# success, all done
status=0
exit