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Message-ID: <152399124671.3456.4156323309583190460.stgit@localhost.localdomain>
Date: Tue, 17 Apr 2018 21:54:06 +0300
From: Kirill Tkhai <ktkhai@...tuozzo.com>
To: akpm@...ux-foundation.org, vdavydov.dev@...il.com,
shakeelb@...gle.com, viro@...iv.linux.org.uk, hannes@...xchg.org,
mhocko@...nel.org, ktkhai@...tuozzo.com, tglx@...utronix.de,
pombredanne@...b.com, stummala@...eaurora.org,
gregkh@...uxfoundation.org, sfr@...b.auug.org.au, guro@...com,
mka@...omium.org, penguin-kernel@...ove.SAKURA.ne.jp,
chris@...is-wilson.co.uk, longman@...hat.com, minchan@...nel.org,
hillf.zj@...baba-inc.com, ying.huang@...el.com,
mgorman@...hsingularity.net, jbacik@...com, linux@...ck-us.net,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
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Subject: [PATCH v2 07/12] list_lru: Pass dst_memcg argument to
memcg_drain_list_lru_node()
This is just refactoring to allow next patches to have
dst_memcg pointer in memcg_drain_list_lru_node().
Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
---
include/linux/list_lru.h | 2 +-
mm/list_lru.c | 11 ++++++-----
mm/memcontrol.c | 2 +-
3 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h
index f5b6bb7a8670..5c7db0022ce6 100644
--- a/include/linux/list_lru.h
+++ b/include/linux/list_lru.h
@@ -66,7 +66,7 @@ int __list_lru_init(struct list_lru *lru, bool memcg_aware,
#define list_lru_init_memcg(lru) __list_lru_init((lru), true, NULL)
int memcg_update_all_list_lrus(int num_memcgs);
-void memcg_drain_all_list_lrus(int src_idx, int dst_idx);
+void memcg_drain_all_list_lrus(int src_idx, struct mem_cgroup *dst_memcg);
/**
* list_lru_add: add an element to the lru list's tail
diff --git a/mm/list_lru.c b/mm/list_lru.c
index 437f854eac44..a92850bc209f 100644
--- a/mm/list_lru.c
+++ b/mm/list_lru.c
@@ -517,8 +517,9 @@ int memcg_update_all_list_lrus(int new_size)
}
static void memcg_drain_list_lru_node(struct list_lru_node *nlru,
- int src_idx, int dst_idx)
+ int src_idx, struct mem_cgroup *dst_memcg)
{
+ int dst_idx = dst_memcg->kmemcg_id;
struct list_lru_one *src, *dst;
/*
@@ -538,7 +539,7 @@ static void memcg_drain_list_lru_node(struct list_lru_node *nlru,
}
static void memcg_drain_list_lru(struct list_lru *lru,
- int src_idx, int dst_idx)
+ int src_idx, struct mem_cgroup *dst_memcg)
{
int i;
@@ -546,16 +547,16 @@ static void memcg_drain_list_lru(struct list_lru *lru,
return;
for_each_node(i)
- memcg_drain_list_lru_node(&lru->node[i], src_idx, dst_idx);
+ memcg_drain_list_lru_node(&lru->node[i], src_idx, dst_memcg);
}
-void memcg_drain_all_list_lrus(int src_idx, int dst_idx)
+void memcg_drain_all_list_lrus(int src_idx, struct mem_cgroup *dst_memcg)
{
struct list_lru *lru;
mutex_lock(&list_lrus_mutex);
list_for_each_entry(lru, &list_lrus, list)
- memcg_drain_list_lru(lru, src_idx, dst_idx);
+ memcg_drain_list_lru(lru, src_idx, dst_memcg);
mutex_unlock(&list_lrus_mutex);
}
#else
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 562dfb1be9ef..ffbe65d43a15 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3182,7 +3182,7 @@ static void memcg_offline_kmem(struct mem_cgroup *memcg)
}
rcu_read_unlock();
- memcg_drain_all_list_lrus(kmemcg_id, parent->kmemcg_id);
+ memcg_drain_all_list_lrus(kmemcg_id, parent);
memcg_free_cache_id(kmemcg_id);
}
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