Recently it is observed that list corruption is triggered when running
scsi disk rebind in case of blk-cgroup.
Add one such test case for covering this unusual operation.
Cc: Changhui Zhong <czhong@xxxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
tests/block/035 | 54 +++++++++++++++++++++++++++++++++++++++++++++
tests/block/035.out | 2 ++
2 files changed, 56 insertions(+)
create mode 100755 tests/block/035
create mode 100644 tests/block/035.out
diff --git a/tests/block/035 b/tests/block/035
new file mode 100755
index 0000000..a1057a3
--- /dev/null
+++ b/tests/block/035
@@ -0,0 +1,54 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2024 Ming Lei
+#
+# blk-cgroup is usually initialized in disk allocation code, and
+# de-initialized in disk release code. And scsi disk rebind needs
+# to re-allocate/re-add disk, meantime request queue is kept as
+# live during the whole cycle.
+#
+# Add this test for covering blk-cgroup & disk rebind.
+
+. tests/block/rc
+. common/scsi_debug
+. common/cgroup
+
+DESCRIPTION="test cgroup vs. scsi_debug rebind"
+QUICK=1
+
+requires() {
+ _have_cgroup2_controller io
+ _have_scsi_debug
+ _have_fio
+}
+
+scsi_debug_rebind() {
+ if ! _configure_scsi_debug; then
+ return
+ fi
+
+ _init_cgroup2
+
+ echo "+io" > "/sys/fs/cgroup/cgroup.subtree_control"
+ echo "+io" > "$CGROUP2_DIR/cgroup.subtree_control"
+ mkdir -p "$CGROUP2_DIR/${TEST_NAME}"
+
+ local dev dev_path hctl
+ dev=${SCSI_DEBUG_DEVICES[0]}
+ dev_path="$(realpath "/sys/block/${dev}/device")"
+ hctl="$(basename "$dev_path")"
+
+ echo -n "${hctl}" > "/sys/bus/scsi/drivers/sd/unbind"
+ echo -n "${hctl}" > "/sys/bus/scsi/drivers/sd/bind"
+
+ _exit_cgroup2
+ _exit_scsi_debug
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ scsi_debug_rebind
+
+ echo "Test complete"
+}
diff --git a/tests/block/035.out b/tests/block/035.out
new file mode 100644
index 0000000..6ffa504
--- /dev/null
+++ b/tests/block/035.out
@@ -0,0 +1,2 @@
+Running block/035
+Test complete
--
2.41.0
