cgroup: lock cgroup_mutex in cgroup_init_subsys()

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Make cgroup_init_subsys() grab cgroup_mutex while initializing a
subsystem so that all helpers and callbacks are called under the
context they expect.  This isn't strictly necessary as
cgroup_init_subsys() doesn't race with anybody but will allow adding
lockdep assertions.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>

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Tejun Heo 2012-11-19 08:13:36 -08:00

parent b48c6a80a0

commit 648bb56d07

1 changed files with 4 additions and 0 deletions

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kernel/cgroup.c

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