diff options
| author | Tejun Heo <tj@kernel.org> | 2014-02-12 09:29:50 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-02-12 09:29:50 -0500 |
| commit | 776f02fa4e1ad70557c0318c70ce928e0642bee0 (patch) | |
| tree | f2080066461b0ef75a964a8ef2b9a2243d7b5389 /arch/sparc/kernel/sun4m_irq.c | |
| parent | 3c9c825b8b50de7dbb015e6bfc04bb2da79364d9 (diff) | |
cgroup: remove cgroupfs_root->refcnt
Currently, cgroupfs_root and its ->top_cgroup are separated reference
counted and the latter's is ignored. There's no reason to do this
separately. This patch removes cgroupfs_root->refcnt and destroys
cgroupfs_root when the top_cgroup is released.
* cgroup_put() updated to ignore cgroup_is_dead() test for top
cgroups. cgroup_free_fn() updated to handle root destruction when
releasing a top cgroup.
* As root destruction is now bounced through cgroup destruction, it is
asynchronous. Update cgroup_mount() so that it waits for pending
release which is currently implemented using msleep(). Converting
this to proper wait_queue isn't hard but likely unnecessary.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'arch/sparc/kernel/sun4m_irq.c')
0 files changed, 0 insertions, 0 deletions