Tejun Heo c43c5ea75f cgroup: Make cgroup_rstat_updated() ready for root cgroup usage ... cgroup_rstat_updated() ensures that the cgroup's rstat is linked to the parent. If there's no parent, it never gets linked and the function ends up grabbing and releasing the cgroup_rstat_lock each time for no reason which can be expensive. This hasn't been a problem till now because nobody was calling the function for the root cgroup but rstat is gonna be exposed to controllers and use cases, so let's get ready. Make cgroup_rstat_updated() an no-op for the root cgroup. Signed-off-by: Tejun Heo <tj@kernel.org>		2018-04-26 14:29:06 -07:00
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cgroup-internal.h	cgroup: Factor out and expose cgroup_rstat_*() interface functions	2018-04-26 14:29:05 -07:00
cgroup-v1.c	cgroup: Fix deadlock in cpu hotplug path	2017-12-19 05:38:47 -08:00
cgroup.c	cgroup: Add cgroup_subsys->css_rstat_flush()	2018-04-26 14:29:05 -07:00
cpuset.c	kernel/cpuset: current_cpuset_is_being_rebound can be boolean	2018-02-06 18:32:47 -08:00
debug.c	debug cgroup: use task_css_set instead of rcu_dereference	2017-11-27 11:37:33 -08:00
freezer.c	cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS	2017-07-21 11:14:51 -04:00
Makefile	cgroup: Rename kernel/cgroup/stat.c to kernel/cgroup/rstat.c	2018-04-26 14:29:04 -07:00
namespace.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pids.c	cgroup: implement cgroup v2 thread support	2017-07-21 11:14:51 -04:00
rdma.c	rdmacg: Fixed uninitialized current resource usage	2017-01-10 12:52:32 -05:00
rstat.c	cgroup: Make cgroup_rstat_updated() ready for root cgroup usage	2018-04-26 14:29:06 -07:00