On Tue, Feb 16, 2021 at 4:13 PM Yang Shi <shy828301@xxxxxxxxx> wrote: > > The shrinker_info is dereferenced in a couple of places via rcu_dereference_protected > with different calling conventions, for example, using mem_cgroup_nodeinfo helper > or dereferencing memcg->nodeinfo[nid]->shrinker_info. And the later patch > will add more dereference places. > > So extract the dereference into a helper to make the code more readable. No > functional change. > > Acked-by: Roman Gushchin <guro@xxxxxx> > Acked-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> > Acked-by: Vlastimil Babka <vbabka@xxxxxxx> > Signed-off-by: Yang Shi <shy828301@xxxxxxxxx> Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>