[PATCH 06/13] xfs/2301: test lazy bounce buffering mode

[Christoph Hellwig <hch@lst.de>]

Run fsx (based on generic/091) while injecting lazy bounce buffer
retries for reads.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 tests/xfs/2301     | 43 +++++++++++++++++++++++++++++++++++++++++++
 tests/xfs/2301.out | 13 +++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100755 tests/xfs/2301
 create mode 100644 tests/xfs/2301.out

diff --git a/tests/xfs/2301 b/tests/xfs/2301
new file mode 100755
index 000000000000..605510c6dbc8
--- /dev/null
+++ b/tests/xfs/2301
@@ -0,0 +1,43 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+# Copyright (c) 2026 Christoph Hellwig.
+#
+# FS QA Test No. 2301
+#
+# Run fsx with error injection for re-retries with bounce buffers, simulating
+# users modifying the in-flight data buffer.
+#
+. ./common/preamble
+_begin_fstest rw auto quick datacsum
+
+. ./common/filter
+. ./common/inject
+
+_require_test
+_require_odirect
+_require_xfs_data_csum $TEST_DIR
+
+psize=`$here/src/feature -s`
+bsize=`$here/src/min_dio_alignment $TEST_DIR $TEST_DEV`
+
+_test_inject_error bounce_reread 100
+
+# fsx load similar to generic/091
+echo "Testing direct I/O"
+run_fsx -N 10000            -l 500000 -r BSIZE -w BSIZE -Z -R -W
+run_fsx -N 10000  -o 8192   -l 500000 -r BSIZE -w BSIZE -Z -R -W
+run_fsx -N 10000  -o 32768  -l 500000 -r BSIZE -w BSIZE -Z -R -W
+run_fsx -N 10000  -o 8192   -l 500000 -r BSIZE -w BSIZE -Z -R -W
+run_fsx -N 10000  -o 32768  -l 500000 -r BSIZE -w BSIZE -Z -R -W
+run_fsx -N 10000  -o 128000 -l 500000 -r BSIZE -w BSIZE -Z -W
+
+# fsx load similar to generic/091 but using buffered I/O
+echo "Testing buffered I/O"
+run_fsx -N 10000            -l 500000
+run_fsx -N 10000  -o 8192   -l 500000
+run_fsx -N 10000  -o 32768  -l 500000
+run_fsx -N 10000  -o 128000 -l 500000
+
+status=0
+exit
diff --git a/tests/xfs/2301.out b/tests/xfs/2301.out
new file mode 100644
index 000000000000..221a3185970c
--- /dev/null
+++ b/tests/xfs/2301.out
@@ -0,0 +1,13 @@
+QA output created by 2301
+Testing direct I/O
+fsx -N 10000 -l 500000 -r BSIZE -w BSIZE -Z -R -W
+fsx -N 10000 -o 8192 -l 500000 -r BSIZE -w BSIZE -Z -R -W
+fsx -N 10000 -o 32768 -l 500000 -r BSIZE -w BSIZE -Z -R -W
+fsx -N 10000 -o 8192 -l 500000 -r BSIZE -w BSIZE -Z -R -W
+fsx -N 10000 -o 32768 -l 500000 -r BSIZE -w BSIZE -Z -R -W
+fsx -N 10000 -o 128000 -l 500000 -r BSIZE -w BSIZE -Z -W
+Testing buffered I/O
+fsx -N 10000 -l 500000
+fsx -N 10000 -o 8192 -l 500000
+fsx -N 10000 -o 32768 -l 500000
+fsx -N 10000 -o 128000 -l 500000
-- 
2.53.0