Messages in this thread Patch in this message | | | From | Muchun Song <> | Subject | [RFC PATCH 04/15] mm: memcontrol: use lruvec_memcg in lruvec_holds_page_lru_lock | Date | Tue, 30 Mar 2021 18:15:20 +0800 |
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We already have a helper lruvec_memcg() to get the memcg from lruvec, we do not need to do it ourselves in the lruvec_holds_page_lru_lock(). So use lruvec_memcg() instead.
Signed-off-by: Muchun Song <songmuchun@bytedance.com> --- include/linux/memcontrol.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index a35a22994cf7..6e3283828391 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -744,20 +744,20 @@ static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page) return mem_cgroup_lruvec(memcg, pgdat); } +static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec); + static inline bool lruvec_holds_page_lru_lock(struct page *page, struct lruvec *lruvec) { pg_data_t *pgdat = page_pgdat(page); const struct mem_cgroup *memcg; - struct mem_cgroup_per_node *mz; if (mem_cgroup_disabled()) return lruvec == &pgdat->__lruvec; - mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec); memcg = page_memcg(page) ? : root_mem_cgroup; - return lruvec->pgdat == pgdat && mz->memcg == memcg; + return lruvec->pgdat == pgdat && lruvec_memcg(lruvec) == memcg; } struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p); -- 2.11.0
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