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Subject[PATCH 1/2] devcgroup: make a helper to convert cgroup_subsys_state to devs_cgroup
This is just picking the container_of out of cgroup_to_devcgroup into
a separate function.

This new css_to_devcgroup will be used in the 2nd patch.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>

---
security/device_cgroup.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 4ea5836..15f2f80 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -49,10 +49,14 @@ struct dev_cgroup {
spinlock_t lock;
};

+static inline struct dev_cgroup *css_to_devcgroup(struct cgroup_subsys_state *s)
+{
+ return container_of(s, struct dev_cgroup, css);
+}
+
static inline struct dev_cgroup *cgroup_to_devcgroup(struct cgroup *cgroup)
{
- return container_of(cgroup_subsys_state(cgroup, devices_subsys_id),
- struct dev_cgroup, css);
+ return css_to_devcgroup(cgroup_subsys_state(cgroup, devices_subsys_id));
}

struct cgroup_subsys devices_subsys;
--
1.5.3.4


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