On 2/9/21 6:46 PM, Yang Shi 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.

Signed-off-by: Yang Shi <redacted>

Acked-by: Vlastimil Babka <redacted>