From 5c9d535b893f30266ea29fe377cb9b002fcd76aa Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 16 May 2014 13:22:48 -0400 Subject: cgroup: remove css_parent() cgroup in general is moving towards using cgroup_subsys_state as the fundamental structural component and css_parent() was introduced to convert from using cgroup->parent to css->parent. It was quite some time ago and we're moving forward with making css more prominent. This patch drops the trivial wrapper css_parent() and let the users dereference css->parent. While at it, explicitly mark fields of css which are public and immutable. v2: New usage from device_cgroup.c converted. Signed-off-by: Tejun Heo Acked-by: Michal Hocko Acked-by: Neil Horman Acked-by: "David S. Miller" Acked-by: Li Zefan Cc: Vivek Goyal Cc: Jens Axboe Cc: Peter Zijlstra Cc: Johannes Weiner --- kernel/sched/cpuacct.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/sched/cpuacct.c') diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index c143ee380e3..9cf350c94ec 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -46,7 +46,7 @@ static inline struct cpuacct *task_ca(struct task_struct *tsk) static inline struct cpuacct *parent_ca(struct cpuacct *ca) { - return css_ca(css_parent(&ca->css)); + return css_ca(ca->css.parent); } static DEFINE_PER_CPU(u64, root_cpuacct_cpuusage); -- cgit v1.2.3-70-g09d2