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| author | Yafang Shao <laoar.shao@gmail.com> | 2023-10-29 06:14:29 +0000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2023-11-09 13:25:47 -1000 |
| commit | d23b5c577715892c87533b13923306acc6243f93 (patch) | |
| tree | 34dd5580faefac6cad9daf46e27e471d0166a60c /tools/testing/selftests/bpf/prog_tests/async_stack_depth.c | |
| parent | 96a2b48e5e1df6698f504969f0f51dc34e52ff3d (diff) | |
cgroup: Make operations on the cgroup root_list RCU safe
At present, when we perform operations on the cgroup root_list, we must
hold the cgroup_mutex, which is a relatively heavyweight lock. In reality,
we can make operations on this list RCU-safe, eliminating the need to hold
the cgroup_mutex during traversal. Modifications to the list only occur in
the cgroup root setup and destroy paths, which should be infrequent in a
production environment. In contrast, traversal may occur frequently.
Therefore, making it RCU-safe would be beneficial.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/async_stack_depth.c')
0 files changed, 0 insertions, 0 deletions