On Wed, Jun 21, 2017 at 02:57:11PM -0700, Darrick J. Wong wrote:

quoted

From: Darrick J. Wong <redacted>

Test the GETFSMAP ioctl against ext4.

Signed-off-by: Darrick J. Wong <redacted>
---
 tests/ext4/700     |   76 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/ext4/700.out |    7 +++++
 tests/ext4/701     |   65 ++++++++++++++++++++++++++++++++++++++++++++
 tests/ext4/701.out |    3 ++
 tests/ext4/702     |   66 +++++++++++++++++++++++++++++++++++++++++++++
 tests/ext4/702.out |    4 +++
 tests/ext4/group   |    3 ++
 7 files changed, 224 insertions(+)
 create mode 100755 tests/ext4/700
 create mode 100644 tests/ext4/700.out
 create mode 100755 tests/ext4/701
 create mode 100644 tests/ext4/701.out
 create mode 100755 tests/ext4/702
 create mode 100644 tests/ext4/702.out

diff --git a/tests/ext4/700 b/tests/ext4/700
new file mode 100755
index 0000000..a4a1b83
--- /dev/null
+++ b/tests/ext4/700

@@ -0,0 +1,76 @@
+#! /bin/bash
+# FS QA Test No. 700
+#
+# Check that getfsmap reports the BG metadata we're expecting.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017, Oracle and/or its affiliates.  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".* $TEST_DIR/fsmap $TEST_DIR/testout
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs ext4
+_require_scratch
+_require_xfs_io_command "fsmap"
+
+rm -f "$seqres.full"
+
+echo "Format and mount"
+_scratch_mkfs > "$seqres.full" 2>&1
+_scratch_mount
+
+echo "Get fsmap" | tee -a $seqres.full
+$XFS_IO_PROG -c 'fsmap' $SCRATCH_MNT > $TEST_DIR/fsmap
+cat $TEST_DIR/fsmap >> $seqres.full
+
+echo "Check fs metadata" | tee -a $seqres.full
+x=$(grep -c 'static fs metadata' $TEST_DIR/fsmap)
+test $x -gt 0 || echo "No fs metadata?"

This test passed for me if I enlarge the size of external log device. It
was 256M and mkfs picked 1k as block size previously. Though it silll
failed in 1k block size test, but that's a kernel issue not test :)

quoted

+
+echo "Check block bitmap" | tee -a $seqres.full
+x=$(grep -c 'special 102:1' $TEST_DIR/fsmap)
+test $x -gt 0 || echo "No block bitmaps?"
+
+echo "Check inode bitmap" | tee -a $seqres.full
+x=$(grep -c 'special 102:2' $TEST_DIR/fsmap)
+test $x -gt 0 || echo "No inode bitmaps?"
+
+echo "Check inodes" | tee -a $seqres.full
+x=$(grep -c 'inodes' $TEST_DIR/fsmap)
+test $x -gt 0 || echo "No inodes?"
+
+# success, all done
+status=0
+exit

diff --git a/tests/ext4/700.out b/tests/ext4/700.out
new file mode 100644
index 0000000..3984319
--- /dev/null
+++ b/tests/ext4/700.out

@@ -0,0 +1,7 @@
+QA output created by 700
+Format and mount
+Get fsmap
+Check fs metadata
+Check block bitmap
+Check inode bitmap
+Check inodes

diff --git a/tests/ext4/701 b/tests/ext4/701
new file mode 100755
index 0000000..6ae93d7
--- /dev/null
+++ b/tests/ext4/701

@@ -0,0 +1,65 @@
+#! /bin/bash
+# FS QA Test No. 701
+#
+# Populate filesystem, check that fsmap -n10000 matches fsmap -n1.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017, Oracle and/or its affiliates.  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".* $TEST_DIR/a $TEST_DIR/b
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/populate
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs ext4
+_require_scratch
+_require_populate_commands
+_require_xfs_io_command "fsmap"
+
+rm -f "$seqres.full"
+
+echo "Format and mount"
+_scratch_populate_cached nofill > $seqres.full 2>&1
+
+echo "Compare fsmap" | tee -a $seqres.full
+_scratch_mount
+$XFS_IO_PROG -c 'fsmap -n 65536' $SCRATCH_MNT | grep -v 'EXT:' > $TEST_DIR/a
+$XFS_IO_PROG -c 'fsmap -n 1' $SCRATCH_MNT | grep -v 'EXT:' > $TEST_DIR/b
+cat $TEST_DIR/a $TEST_DIR/b >> $seqres.full
+
+diff -uw $TEST_DIR/a $TEST_DIR/b

But this test is still failing for me with external log set.

--- tests/ext4/027.out  2017-06-22 16:53:30.814487339 +0800
+++ /root/xfstests/results//ext4/027.out.bad    2017-06-23 15:36:27.502464414 +0800

@@ -1,3 +1,10 @@
 QA output created by 027
 Format and mount
 Compare fsmap
+--- /mnt/testarea/test/a       2017-06-23 15:36:27.433463217 +0800
++++ /mnt/testarea/test/b       2017-06-23 15:36:27.491464224 +0800
+@@ -760,4 +760,3 @@
+       759: 8:34 [29360256..29393023]: inodes 32768
+       760: 8:34 [29393024..31457279]: free space 2064256
+       761: 8:41 [0..7]: unknown 8
+-      762: 8:41 [8..524295]: journalling log 524288

Does this expose another kernel bug or the test itself needs fix?