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test: introduce `get_cgroup_hierarchy() helper

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which returns the host's cgroup hierarchy (unified, hybrid, or legacy).
This commit is contained in:
Frantisek Sumsal 2022-02-01 20:18:29 +01:00
parent bab29f2ab7
commit f723740871
1 changed files with 18 additions and 0 deletions
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18
test/test-functions
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@ -2010,6 +2010,24 @@ import_initdir() {
export 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. ## @brief Converts numeric logging level to the first letter of level name.
# #
# @param lvl Numeric logging level in range from 1 to 6. # @param lvl Numeric logging level in range from 1 to 6.