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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>
pull/1354/merge
Chen Ridong 2025-11-26 02:04:35 +00:00 committed by Andrew Morton
parent 0384c8ea96
commit f3b566d726
2 changed files with 1 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
include/linux/memcontrol.h
View File

@ -1452,16 +1452,6 @@ struct slabobj_ext {
#endif
} __aligned(8);
static inline void inc_lruvec_kmem_state(void *p, enum node_stat_item idx)
{
mod_lruvec_kmem_state(p, idx, 1);
}
static inline void dec_lruvec_kmem_state(void *p, enum node_stat_item idx)
{
mod_lruvec_kmem_state(p, idx, -1);
}
static inline struct lruvec *parent_lruvec(struct lruvec *lruvec)
{
struct mem_cgroup *memcg;

2
mm/workingset.c
View File

@ -749,7 +749,7 @@ static enum lru_status shadow_lru_isolate(struct list_head *item,
if (WARN_ON_ONCE(node->count != node->nr_values))
goto out_invalid;
xa_delete_node(node, workingset_update_node);
inc_lruvec_kmem_state(node, WORKINGSET_NODERECLAIM);
mod_lruvec_kmem_state(node, WORKINGSET_NODERECLAIM, 1);
out_invalid:
xa_unlock_irq(&mapping->i_pages);