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(parent: b48c6a8) | patch
cgroup: lock cgroup_mutex in cgroup_init_subsys()
authorTejun Heo <tj@kernel.org>
Mon, 19 Nov 2012 16:13:36 +0000 (08:13 -0800)
committerTejun Heo <tj@kernel.org>
Mon, 19 Nov 2012 16:13:36 +0000 (08:13 -0800)
commit648bb56d076bde31113f09a7d24d95bc8d4155ac
tree5e17d543a77f3783e4cfce7f525f4c3255238c07tree | snapshot
parentb48c6a80a0f7584056f768268fc12b87745a393fcommit | diff
cgroup: lock cgroup_mutex in cgroup_init_subsys()

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>
kernel/cgroup.c diff | blob | history
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