[PATCH v4 2/3] xfs: add memory failure test for dax&reflink mode

[Shiyang Ruan <ruansy.fnst@fujitsu.com>]

Verify that the dax-rmap feature works.

Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
---
 tests/xfs/901     | 51 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/901.out |  9 +++++++++
 2 files changed, 60 insertions(+)
 create mode 100755 tests/xfs/901
 create mode 100644 tests/xfs/901.out

diff --git a/tests/xfs/901 b/tests/xfs/901
new file mode 100755
index 000000000..166683da8
--- /dev/null
+++ b/tests/xfs/901
@@ -0,0 +1,51 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2022 Fujitsu Limited.  All Rights Reserved.
+#
+# FS QA Test No. 901
+#
+# Test memory failure mechanism when dax and reflink working together
+#
+. ./common/preamble
+_begin_fstest auto quick clone dax
+
+# Import common functions.
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_require_check_dmesg
+_require_scratch_reflink
+_require_cp_reflink
+_require_xfs_scratch_rmapbt
+_require_scratch_dax_mountopt "dax"
+_require_test_program "t_mmap_cow_memory_failure"
+
+echo "Format and mount"
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount "-o dax" >> $seqres.full 2>&1
+
+testdir=$SCRATCH_MNT/test-$seq
+mkdir $testdir
+
+echo "Create the original files"
+filesize=65536
+_pwrite_byte 0x61 0 $filesize $testdir/testfile >> $seqres.full
+_cp_reflink $testdir/testfile $testdir/poisonfile >> $seqres.full
+_scratch_cycle_mount "dax"
+
+echo "Inject memory failure (1 page)"
+# create two processes:
+#  process1: mread 1 page to cause page fault, and wait
+#  process2: mread 1 page to cause page fault, then inject poison on this page
+$here/src/t_mmap_cow_memory_failure -s1 -S1 -R $testdir/testfile -P $testdir/poisonfile
+
+echo "Inject memory failure (2 pages)"
+$here/src/t_mmap_cow_memory_failure -s2 -S2 -R $testdir/testfile -P $testdir/poisonfile
+
+_check_dmesg_for "Sending SIGBUS to t_mmap_cow_memo" || echo "Memory failure didn't kill the process"
+_check_dmesg_for "recovery action for dax page: Recovered" || echo "Failured page didn't recovered"
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/901.out b/tests/xfs/901.out
new file mode 100644
index 000000000..0b91167c0
--- /dev/null
+++ b/tests/xfs/901.out
@@ -0,0 +1,9 @@
+QA output created by 901
+Format and mount
+Create the original files
+Inject memory failure (1 page)
+Inject poison...
+Process is killed by signal: 7
+Inject memory failure (2 pages)
+Inject poison...
+Process is killed by signal: 7
-- 
2.37.1