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c43c5ea75f
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> |
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.. | ||
cgroup-internal.h | ||
cgroup-v1.c | ||
cgroup.c | ||
cpuset.c | ||
debug.c | ||
freezer.c | ||
Makefile | ||
namespace.c | ||
pids.c | ||
rdma.c | ||
rstat.c |