xfs/062: verify bulkstat finds all inodes

The bulkstat mechanism is used by xfsdump and other tools to index all
inodes allocated in a filesystem. Run some simple tests with varying
inode layouts and bulkstat batch sizes to verify bulkstat finds the
expected number of inodes.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

tests/xfs/062

@@ -0,0 +1,110 @@
+#! /bin/bash
+# FS QA Test No. 062
+#
+# Use the bstat utility to verify bulkstat finds all inodes in a filesystem.
+# Test under various inode counts, inobt record layouts and bulkstat batch
+# sizes.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2014 Red Hat, Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#-----------------------------------------------------------------------
+
+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 -f $tmp.*
+}
+
+# print the number of inodes counted by bulkstat
+_bstat_count()
+{
+	batchsize=$1
+	./src/bstat $SCRATCH_MNT $batchsize | grep ino | wc -l
+}
+
+# print bulkstat counts using varied batch sizes
+_bstat_test()
+{
+	expect=`find $SCRATCH_MNT -print | wc -l`
+	echo "expect $expect"
+
+	_bstat_count 4096
+	_bstat_count 32
+	_bstat_count 1
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+_require_scratch
+
+# real QA test starts here
+
+_supported_fs xfs
+_supported_os Linux
+
+rm -f $seqres.full
+
+DIRCOUNT=8
+INOCOUNT=$((2048 / DIRCOUNT))
+
+_scratch_mkfs "-d agcount=$DIRCOUNT" >> $seqres.full 2>&1 || _fail "mkfs failed"
+_scratch_mount
+
+# create a set of directories and fill each with a fixed number of files
+for dir in $(seq 1 $DIRCOUNT); do
+	mkdir -p $SCRATCH_MNT/$dir
+	for i in $(seq 1 $INOCOUNT); do
+		touch $SCRATCH_MNT/$dir/$i
+	done
+done
+_bstat_test
+
+# remove every other file from each dir
+for dir in $(seq 1 $DIRCOUNT); do
+	for i in $(seq 2 2 $INOCOUNT); do
+		rm -f $SCRATCH_MNT/$dir/$i
+	done
+done
+_bstat_test
+
+# remove the entire second half of files
+for dir in $(seq 1 $DIRCOUNT); do
+	for i in $(seq $((INOCOUNT / 2)) $INOCOUNT); do
+		rm -f $SCRATCH_MNT/$dir/$i
+	done
+done
+_bstat_test
+
+# remove all regular files
+for dir in $(seq 1 $DIRCOUNT); do
+	rm -f $SCRATCH_MNT/$dir/*
+done
+_bstat_test
+
+# success, all done
+status=0
+exit

tests/xfs/062.out

@@ -0,0 +1,17 @@
+QA output created by 062
+expect 2057
+2057
+2057
+2057
+expect 1033
+1033
+1033
+1033
+expect 521
+521
+521
+521
+expect 9
+9
+9
+9

tests/xfs/group

@@ -58,6 +58,7 @@
 059 dump ioctl auto quick
 060 dump ioctl auto quick
 061 dump ioctl auto quick
+062 auto ioctl quick
 063 dump attr auto quick
 064 dump auto
 065 dump auto