systemd/SOURCES/0024-test-introduce-get_cgroup_hierarchy-helper.patch
2022-03-01 12:41:35 +00:00

44 lines
1.3 KiB
Diff

From 16908e1ec833d857cb418712c382c6f604426b36 Mon Sep 17 00:00:00 2001
From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Tue, 1 Feb 2022 20:18:29 +0100
Subject: [PATCH] test: introduce `get_cgroup_hierarchy() helper
which returns the host's cgroup hierarchy (unified, hybrid, or legacy).
(cherry picked from commit f723740871bd3eb89d16a526a1ff77c04bb3787a)
Related: #2047768
---
test/test-functions | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/test/test-functions b/test/test-functions
index 35d8f074a9..4827b6bedf 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -1996,6 +1996,24 @@ import_initdir() {
export initdir
}
+get_cgroup_hierarchy() {
+ case "$(stat -c '%T' -f /sys/fs/cgroup)" in
+ cgroup2fs)
+ echo "unified"
+ ;;
+ tmpfs)
+ if [[ -d /sys/fs/cgroup/unified && "$(stat -c '%T' -f /sys/fs/cgroup/unified)" == cgroup2fs ]]; then
+ echo "hybrid"
+ else
+ echo "legacy"
+ fi
+ ;;
+ *)
+ dfatal "Failed to determine host's cgroup hierarchy"
+ exit 1
+ esac
+}
+
## @brief Converts numeric logging level to the first letter of level name.
#
# @param lvl Numeric logging level in range from 1 to 6.