cgroup: move number_of_cgroups test out of rebind_subsystems() into cgroup_remount()

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rebind_subsystems() currently fails if the hierarchy has any !root
cgroups; however, on the planned unified hierarchy,
rebind_subsystems() will be used while populated.  Move the test to
cgroup_remount(), which is the only place the test is necessary
anyway.

As it's impossible for the other two callers of rebind_subsystems() to
have populated hierarchy, this doesn't make any behavior changes.

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

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Tejun Heo 2013-06-28 17:07:30 -07:00

parent 3126121fb3

commit f172e67cf9

1 changed files with 6 additions and 7 deletions

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kernel/cgroup.c

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