Tejun Heo 9a9e97b2f1 cgroup: Add memory barriers to plug cgroup_rstat_updated() race window ... cgroup_rstat_updated() has a small race window where an updated signaling can race with flush and could be lost till the next update. This wasn't a problem for the existing usages, but we plan to use rstat to track counters which need to be accurate. This patch plugs the race window by synchronizing cgroup_rstat_updated() and flush path with memory barriers around cgroup_rstat_cpu->updated_next pointer. Signed-off-by: Tejun Heo <tj@kernel.org>		2018-04-26 14:29:05 -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
rstat.c	cgroup: Add memory barriers to plug cgroup_rstat_updated() race window	2018-04-26 14:29:05 -07:00