On Thu, 17 Feb 2011, Li Zefan wrote:

Chaning cpuset->mems/cpuset->cpus should be protected under
callback_mutex.

cpuset_clone() doesn't follow this rule. It's ok because it's
called when creating and initializing a cgroup, but we'd better
hold the lock to avoid subtil break in the future.

Signed-off-by: Li Zefan <redacted>

Acked-by: David Rientjes <rientjes@google.com>

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