[PATCH 2/7] xfs: test regression in xfs_bmap_validate_extent

["Darrick J. Wong" <darrick.wong@oracle.com>]

From: Darrick J. Wong <darrick.wong@oracle.com>

This is a regression test to make sure that we can have realtime files
with xattr blocks and not trip the verifiers.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 tests/xfs/758     |   59 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/758.out |    2 ++
 tests/xfs/group   |    1 +
 3 files changed, 62 insertions(+)
 create mode 100755 tests/xfs/758
 create mode 100644 tests/xfs/758.out


diff --git a/tests/xfs/758 b/tests/xfs/758
new file mode 100755
index 00000000..e522ae28
--- /dev/null
+++ b/tests/xfs/758
@@ -0,0 +1,59 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2020, Oracle.  All Rights Reserved.
+#
+# FS QA Test No. 758
+#
+# This is a regression test for "xfs: fix xfs_bmap_validate_extent_raw when
+# checking attr fork of rt files", which fixes the bmap record validator so
+# that it will not check the attr fork extent mappings of a realtime file
+# against the size of the realtime volume.
+
+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.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs xfs
+_require_scratch
+_require_realtime
+
+rm -f $seqres.full
+
+# Format filesystem with very tiny realtime volume
+_scratch_mkfs -r size=256k > $seqres.full
+_scratch_mount >> $seqres.full
+
+# Create a realtime file
+$XFS_IO_PROG -f -R -c 'pwrite 0 64k' -c stat $SCRATCH_MNT/v >> $seqres.full
+
+# Add enough xattr data to force creation of xattr blocks at a higher address
+# on the data device than the size of the realtime volume
+for i in `seq 0 16`; do
+	$ATTR_PROG -s user.test$i $SCRATCH_MNT/v < $SCRATCH_MNT/v >> $seqres.full
+done
+
+# Force flushing extent maps to disk to trip the verifier
+_scratch_cycle_mount
+
+# Now let that unmount
+echo Silence is golden.
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/758.out b/tests/xfs/758.out
new file mode 100644
index 00000000..6d219f8e
--- /dev/null
+++ b/tests/xfs/758.out
@@ -0,0 +1,2 @@
+QA output created by 758
+Silence is golden.
diff --git a/tests/xfs/group b/tests/xfs/group
index ffd18166..771680cf 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group
@@ -519,4 +519,5 @@
 519 auto quick reflink
 520 auto quick reflink
 521 auto quick realtime growfs
+758 auto quick rw attr realtime
 763 auto quick rw realtime