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memcg: remove inc/dec_lruvec_kmem_state helpers

The dec_lruvec_kmem_state helper is unused by any caller and can be safely
removed. Meanwhile, the inc_lruvec_kmem_state helper is only referenced
by shadow_lru_isolate, retaining these two helpers is unnecessary. This
patch removes both helper functions to eliminate redundant code.

Link: https://lkml.kernel.org/r/20251126020435.1511637-1-chenridong@huaweicloud.com
Signed-off-by: Chen Ridong <chenridong@huawei.com>
Acked-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Lu Jialin <lujialin4@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by

Chen Ridong and committed by
Andrew Morton f3b566d7 0384c8ea

+1 -11
-10
include/linux/memcontrol.h
··· 1452 1452 #endif 1453 1453 } __aligned(8); 1454 1454 1455 - static inline void inc_lruvec_kmem_state(void *p, enum node_stat_item idx) 1456 - { 1457 - mod_lruvec_kmem_state(p, idx, 1); 1458 - } 1459 - 1460 - static inline void dec_lruvec_kmem_state(void *p, enum node_stat_item idx) 1461 - { 1462 - mod_lruvec_kmem_state(p, idx, -1); 1463 - } 1464 - 1465 1455 static inline struct lruvec *parent_lruvec(struct lruvec *lruvec) 1466 1456 { 1467 1457 struct mem_cgroup *memcg;
+1 -1
mm/workingset.c
··· 749 749 if (WARN_ON_ONCE(node->count != node->nr_values)) 750 750 goto out_invalid; 751 751 xa_delete_node(node, workingset_update_node); 752 - inc_lruvec_kmem_state(node, WORKINGSET_NODERECLAIM); 752 + mod_lruvec_kmem_state(node, WORKINGSET_NODERECLAIM, 1); 753 753 754 754 out_invalid: 755 755 xa_unlock_irq(&mapping->i_pages);