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authorVladimir Davydov <vdavydov@parallels.com>2015-02-19 17:34:46 +0300
committerTejun Heo <tj@kernel.org>2015-03-02 12:11:01 -0500
commit295458e67284f57d154ec8156a22797c0cfb044a (patch)
tree0229507c7ffcb1ea79ccd6989e42f2784bb5bbf9 /kernel/cgroup.c
parent283cb41f426b723a0255702b761b0fc5d1b53a81 (diff)
downloadop-kernel-dev-295458e67284f57d154ec8156a22797c0cfb044a.zip
op-kernel-dev-295458e67284f57d154ec8156a22797c0cfb044a.tar.gz
cgroup: call cgroup_subsys->bind on cgroup subsys initialization
Currently, we call cgroup_subsys->bind only on unmount, remount, and when creating a new root on mount. Since the default hierarchy root is created in cgroup_init, we will not call cgroup_subsys->bind if the default hierarchy is freshly mounted. As a result, some controllers will behave incorrectly (most notably, the "memory" controller will not enable hierarchy support). Fix this by calling cgroup_subsys->bind right after initializing a cgroup subsystem. Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 29a7b2c..21a4b6d 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -5040,6 +5040,9 @@ int __init cgroup_init(void)
WARN_ON(cgroup_add_dfl_cftypes(ss, ss->dfl_cftypes));
WARN_ON(cgroup_add_legacy_cftypes(ss, ss->legacy_cftypes));
}
+
+ if (ss->bind)
+ ss->bind(init_css_set.subsys[ssid]);
}
cgroup_kobj = kobject_create_and_add("cgroup", fs_kobj);
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