From: Yu Kuai <yukuai3@xxxxxxxxxx>
Test change config while IO is throttled, regression test for:
commit a880ae93e5b5 ("blk-throttle: fix io hung due to configuration updates")
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
tests/throtl/005 | 37 +++++++++++++++++++++++++++++++++++++
tests/throtl/005.out | 3 +++
2 files changed, 40 insertions(+)
create mode 100755 tests/throtl/005
create mode 100644 tests/throtl/005.out
diff --git a/tests/throtl/005 b/tests/throtl/005
new file mode 100755
index 0000000..0778258
--- /dev/null
+++ b/tests/throtl/005
@@ -0,0 +1,37 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2024 Yu Kuai
+#
+# Test change config while IO is throttled, regression test for
+# commit a880ae93e5b5 ("blk-throttle: fix io hung due to configuration updates")
+
+. tests/throtl/rc
+
+DESCRIPTION="change config with throttled IO"
+QUICK=1
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ if ! _set_up_throtl; then
+ return 1;
+ fi
+
+ _throtl_set_limits wbps=$((512 * 1024))
+
+ {
+ sleep 0.1
+ _throtl_issue_io write 1M 1
+ } &
+
+ local pid=$!
+ echo "$pid" > "$CGROUP2_DIR/$THROTL_DIR/cgroup.procs"
+
+ sleep 1
+ _throtl_set_limits wbps=$((256 * 1024))
+ wait $pid
+ _throtl_remove_limits
+
+ _clean_up_throtl
+ echo "Test complete"
+}
diff --git a/tests/throtl/005.out b/tests/throtl/005.out
new file mode 100644
index 0000000..1d23210
--- /dev/null
+++ b/tests/throtl/005.out
@@ -0,0 +1,3 @@
+Running throtl/005
+3
+Test complete
--
2.39.2
