mm: cleanup WORKINGSET_NODES in workingset

WORKINGSET_NODES is not exposed in the memcg stats and thus there is no
need to use the memcg specific stat update functions for it.  In future if
we decide to expose WORKINGSET_NODES in the memcg stats, we can revert
this patch.

Link: https://lkml.kernel.org/r/20240501172617.678560-7-shakeel.butt@linux.dev
Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/workingset.c b/mm/workingset.c
index f2a0ecaf708d76ac2c7ef9191e90459cfb2b704f..c22adb93622a5d0e6014cad29933b56cf0564a88 100644 (file)
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -618,6 +618,7 @@ struct list_lru shadow_nodes;
 void workingset_update_node(struct xa_node *node)
 {
        struct address_space *mapping;
+       struct page *page = virt_to_page(node);
 
        /*
         * Track non-empty nodes that contain only shadow entries;
@@ -633,12 +634,12 @@ void workingset_update_node(struct xa_node *node)
        if (node->count && node->count == node->nr_values) {
                if (list_empty(&node->private_list)) {
                        list_lru_add_obj(&shadow_nodes, &node->private_list);
-                       __inc_lruvec_kmem_state(node, WORKINGSET_NODES);
+                       __inc_node_page_state(page, WORKINGSET_NODES);
                }
        } else {
                if (!list_empty(&node->private_list)) {
                        list_lru_del_obj(&shadow_nodes, &node->private_list);
-                       __dec_lruvec_kmem_state(node, WORKINGSET_NODES);
+                       __dec_node_page_state(page, WORKINGSET_NODES);
                }
        }
 }
@@ -742,7 +743,7 @@ static enum lru_status shadow_lru_isolate(struct list_head *item,
        }
 
        list_lru_isolate(lru, item);
-       __dec_lruvec_kmem_state(node, WORKINGSET_NODES);
+       __dec_node_page_state(virt_to_page(node), WORKINGSET_NODES);
 
        spin_unlock(lru_lock);