lkml.org 
[lkml]   [2019]   [Feb]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/6] mm: memcontrol: replace zone summing with lruvec_page_state()
Date
Instead of adding up the zone counters, use lruvec_page_state() to get
the node state directly. This is a bit cheaper and more stream-lined.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
---
include/linux/memcontrol.h | 18 ------------------
mm/memcontrol.c | 2 +-
mm/vmscan.c | 2 +-
3 files changed, 2 insertions(+), 20 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 534267947664..5050d281f67d 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -517,19 +517,6 @@ void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
int nid, unsigned int lru_mask);

-static inline
-unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
-{
- struct mem_cgroup_per_node *mz;
- unsigned long nr_pages = 0;
- int zid;
-
- mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
- for (zid = 0; zid < MAX_NR_ZONES; zid++)
- nr_pages += mz->lru_zone_size[zid][lru];
- return nr_pages;
-}
-
static inline
unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec,
enum lru_list lru, int zone_idx)
@@ -985,11 +972,6 @@ static inline bool mem_cgroup_online(struct mem_cgroup *memcg)
return true;
}

-static inline unsigned long
-mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
-{
- return 0;
-}
static inline
unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec,
enum lru_list lru, int zone_idx)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 5fc2e1a7d4d2..d85a41cfee60 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -737,7 +737,7 @@ unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
for_each_lru(lru) {
if (!(BIT(lru) & lru_mask))
continue;
- nr += mem_cgroup_get_lru_size(lruvec, lru);
+ nr += lruvec_page_state(lruvec, NR_LRU_BASE + lru);
}
return nr;
}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index ac4806f0f332..cdf8d92e6b89 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -346,7 +346,7 @@ unsigned long lruvec_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone
int zid;

if (!mem_cgroup_disabled())
- lru_size = mem_cgroup_get_lru_size(lruvec, lru);
+ lru_size = lruvec_page_state(lruvec, NR_LRU_BASE + lru);
else
lru_size = node_page_state(lruvec_pgdat(lruvec), NR_LRU_BASE + lru);

--
2.20.1
\
 
 \ /
  Last update: 2019-02-28 17:31    [W:0.037 / U:6.480 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site