On Thu, Mar 07, 2019 at 03:00:29PM -0800, Roman Gushchin wrote: > Prepare to handle premature release of memcg->vmstats_percpu data. > Currently it's a generic pointer which is expected to be non-NULL > during the whole life time of a memcg. Switch over to the > rcu-protected pointer, and carefully check it for being non-NULL. > > This change is a required step towards dynamic premature release > of percpu memcg data. > > Signed-off-by: Roman Gushchin <guro@xxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
