diff options
author | Tejun Heo | 2013-08-13 11:01:55 -0400 |
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committer | Tejun Heo | 2013-08-13 11:01:55 -0400 |
commit | 73e80ed8007fc48a6deeb295ba37159fad274bd2 (patch) | |
tree | c4f430a223725038cb85be6ee0e13578d831c929 /security/security.c | |
parent | 105347ba5da3e87facce2337c50cd5df93cc6bec (diff) |
cgroup: add __rcu modifier to cgroup->subsys[]
For the planned unified hierarchy, each css (cgroup_subsys_state) will
be RCU protected so that it can be created and destroyed individually
while allowing RCU accesses. Previous changes ensured that all
cgroup->subsys[] accesses use the cgroup_css() accessor. This patch
adds __rcu modifier to cgroup->subsys[], add matching RCU dereference
in cgroup_css() and convert all assignments to either
rcu_assign_pointer() or RCU_INIT_POINTER().
This change prepares for the actual RCUfication of css's and doesn't
introduce any visible behavior change. The conversion is verified
with sparse and all accesses are properly RCU annotated.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'security/security.c')
0 files changed, 0 insertions, 0 deletions