linux-kernel - [PATCH v6 15/16] mm: list_lru: rename list_lru_per_memcg to list_lru

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Date:   Mon, 28 Feb 2022 20:21:25 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     willy@...radead.org, akpm@...ux-foundation.org, hannes@...xchg.org,
        mhocko@...nel.org, vdavydov.dev@...il.com, shakeelb@...gle.com,
        roman.gushchin@...ux.dev, shy828301@...il.com, alexs@...nel.org,
        richard.weiyang@...il.com, david@...morbit.com,
        trond.myklebust@...merspace.com, anna.schumaker@...app.com,
        jaegeuk@...nel.org, chao@...nel.org, kari.argillander@...il.com,
        vbabka@...e.cz
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-nfs@...r.kernel.org,
        zhengqi.arch@...edance.com, duanxiongchun@...edance.com,
        fam.zheng@...edance.com, smuchun@...il.com,
        Muchun Song <songmuchun@...edance.com>
Subject: [PATCH v6 15/16] mm: list_lru: rename list_lru_per_memcg to list_lru_memcg

The name of list_lru_memcg was occupied before and became free since last
commit. Rename list_lru_per_memcg to list_lru_memcg since the name is brief.

Signed-off-by: Muchun Song <songmuchun@...edance.com>
---
 include/linux/list_lru.h |  2 +-
 mm/list_lru.c            | 18 +++++++++---------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h
index 572c263561ac..b35968ee9fb5 100644
--- a/include/linux/list_lru.h
+++ b/include/linux/list_lru.h
@@ -32,7 +32,7 @@ struct list_lru_one {
 	long			nr_items;
 };
 
-struct list_lru_per_memcg {
+struct list_lru_memcg {
 	struct rcu_head		rcu;
 	/* array of per cgroup per node lists, indexed by node id */
 	struct list_lru_one	node[];
diff --git a/mm/list_lru.c b/mm/list_lru.c
index 8dc1dabb9f05..38f711e9b56e 100644
--- a/mm/list_lru.c
+++ b/mm/list_lru.c
@@ -53,7 +53,7 @@ static inline struct list_lru_one *
 list_lru_from_memcg_idx(struct list_lru *lru, int nid, int idx)
 {
 	if (list_lru_memcg_aware(lru) && idx >= 0) {
-		struct list_lru_per_memcg *mlru = xa_load(&lru->xa, idx);
+		struct list_lru_memcg *mlru = xa_load(&lru->xa, idx);
 
 		return mlru ? &mlru->node[nid] : NULL;
 	}
@@ -306,7 +306,7 @@ unsigned long list_lru_walk_node(struct list_lru *lru, int nid,
 
 #ifdef CONFIG_MEMCG_KMEM
 	if (*nr_to_walk > 0 && list_lru_memcg_aware(lru)) {
-		struct list_lru_per_memcg *mlru;
+		struct list_lru_memcg *mlru;
 		unsigned long index;
 
 		xa_for_each(&lru->xa, index, mlru) {
@@ -335,10 +335,10 @@ static void init_one_lru(struct list_lru_one *l)
 }
 
 #ifdef CONFIG_MEMCG_KMEM
-static struct list_lru_per_memcg *memcg_init_list_lru_one(gfp_t gfp)
+static struct list_lru_memcg *memcg_init_list_lru_one(gfp_t gfp)
 {
 	int nid;
-	struct list_lru_per_memcg *mlru;
+	struct list_lru_memcg *mlru;
 
 	mlru = kmalloc(struct_size(mlru, node, nr_node_ids), gfp);
 	if (!mlru)
@@ -352,7 +352,7 @@ static struct list_lru_per_memcg *memcg_init_list_lru_one(gfp_t gfp)
 
 static void memcg_list_lru_free(struct list_lru *lru, int src_idx)
 {
-	struct list_lru_per_memcg *mlru = xa_erase_irq(&lru->xa, src_idx);
+	struct list_lru_memcg *mlru = xa_erase_irq(&lru->xa, src_idx);
 
 	/*
 	 * The __list_lru_walk_one() can walk the list of this node.
@@ -374,7 +374,7 @@ static inline void memcg_init_list_lru(struct list_lru *lru, bool memcg_aware)
 static void memcg_destroy_list_lru(struct list_lru *lru)
 {
 	XA_STATE(xas, &lru->xa, 0);
-	struct list_lru_per_memcg *mlru;
+	struct list_lru_memcg *mlru;
 
 	if (!list_lru_memcg_aware(lru))
 		return;
@@ -476,7 +476,7 @@ int memcg_list_lru_alloc(struct mem_cgroup *memcg, struct list_lru *lru,
 	unsigned long flags;
 	struct list_lru_memcg *mlrus;
 	struct list_lru_memcg_table {
-		struct list_lru_per_memcg *mlru;
+		struct list_lru_memcg *mlru;
 		struct mem_cgroup *memcg;
 	} *table;
 	XA_STATE(xas, &lru->xa, 0);
@@ -492,7 +492,7 @@ int memcg_list_lru_alloc(struct mem_cgroup *memcg, struct list_lru *lru,
 	/*
 	 * Because the list_lru can be reparented to the parent cgroup's
 	 * list_lru, we should make sure that this cgroup and all its
-	 * ancestors have allocated list_lru_per_memcg.
+	 * ancestors have allocated list_lru_memcg.
 	 */
 	for (i = 0; memcg; memcg = parent_mem_cgroup(memcg), i++) {
 		if (memcg_list_lru_allocated(memcg, lru))
@@ -511,7 +511,7 @@ int memcg_list_lru_alloc(struct mem_cgroup *memcg, struct list_lru *lru,
 	xas_lock_irqsave(&xas, flags);
 	while (i--) {
 		int index = READ_ONCE(table[i].memcg->kmemcg_id);
-		struct list_lru_per_memcg *mlru = table[i].mlru;
+		struct list_lru_memcg *mlru = table[i].mlru;
 
 		xas_set(&xas, index);
 retry:
-- 
2.11.0