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Date: Sun, 13 May 2012 22:00:07 -0700 (PDT)
From: Hugh Dickins <hughd@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
cc: Konstantin Khlebnikov <khlebnikov@...nvz.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
Johannes Weiner <hannes@...xchg.org>,
Michal Hocko <mhocko@...e.cz>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] mm/memcg: get_lru_size not get_lruvec_size
Konstantin just introduced mem_cgroup_get_lruvec_size() and
get_lruvec_size(), I'm about to add mem_cgroup_update_lru_size():
but we're dealing with the same thing, lru_size[lru]. We ought to
agree on the naming, and I do think lru_size is the more correct:
so rename his ones to get_lru_size().
Signed-off-by: Hugh Dickins <hughd@...gle.com>
---
But I'd prefer this patch to vanish and you just edit Konstantin's.
include/linux/memcontrol.h | 4 ++--
mm/memcontrol.c | 10 +++++-----
mm/vmscan.c | 19 +++++++++----------
3 files changed, 16 insertions(+), 17 deletions(-)
--- 3046N.orig/include/linux/memcontrol.h 2012-05-13 20:41:20.506117289 -0700
+++ 3046N/include/linux/memcontrol.h 2012-05-13 20:41:24.330117381 -0700
@@ -121,7 +121,7 @@ void mem_cgroup_iter_break(struct mem_cg
int mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec);
int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec);
int mem_cgroup_select_victim_node(struct mem_cgroup *memcg);
-unsigned long mem_cgroup_get_lruvec_size(struct lruvec *lruvec, enum lru_list);
+unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list);
struct zone_reclaim_stat*
mem_cgroup_get_reclaim_stat_from_page(struct page *page);
extern void mem_cgroup_print_oom_info(struct mem_cgroup *memcg,
@@ -340,7 +340,7 @@ mem_cgroup_inactive_file_is_low(struct l
}
static inline unsigned long
-mem_cgroup_get_lruvec_size(struct lruvec *lruvec, enum lru_list lru)
+mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
return 0;
}
--- 3046N.orig/mm/memcontrol.c 2012-05-13 20:41:20.510117289 -0700
+++ 3046N/mm/memcontrol.c 2012-05-13 20:41:24.334117380 -0700
@@ -742,7 +742,7 @@ static void mem_cgroup_charge_statistics
}
unsigned long
-mem_cgroup_get_lruvec_size(struct lruvec *lruvec, enum lru_list lru)
+mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
struct mem_cgroup_per_zone *mz;
@@ -1234,8 +1234,8 @@ int mem_cgroup_inactive_anon_is_low(stru
unsigned long active;
unsigned long gb;
- inactive = mem_cgroup_get_lruvec_size(lruvec, LRU_INACTIVE_ANON);
- active = mem_cgroup_get_lruvec_size(lruvec, LRU_ACTIVE_ANON);
+ inactive = mem_cgroup_get_lru_size(lruvec, LRU_INACTIVE_ANON);
+ active = mem_cgroup_get_lru_size(lruvec, LRU_ACTIVE_ANON);
gb = (inactive + active) >> (30 - PAGE_SHIFT);
if (gb)
@@ -1251,8 +1251,8 @@ int mem_cgroup_inactive_file_is_low(stru
unsigned long active;
unsigned long inactive;
- inactive = mem_cgroup_get_lruvec_size(lruvec, LRU_INACTIVE_FILE);
- active = mem_cgroup_get_lruvec_size(lruvec, LRU_ACTIVE_FILE);
+ inactive = mem_cgroup_get_lru_size(lruvec, LRU_INACTIVE_FILE);
+ active = mem_cgroup_get_lru_size(lruvec, LRU_ACTIVE_FILE);
return (active > inactive);
}
--- 3046N.orig/mm/vmscan.c 2012-05-13 20:41:20.510117289 -0700
+++ 3046N/mm/vmscan.c 2012-05-13 20:41:24.334117380 -0700
@@ -145,10 +145,10 @@ static bool global_reclaim(struct scan_c
}
#endif
-static unsigned long get_lruvec_size(struct lruvec *lruvec, enum lru_list lru)
+static unsigned long get_lru_size(struct lruvec *lruvec, enum lru_list lru)
{
if (!mem_cgroup_disabled())
- return mem_cgroup_get_lruvec_size(lruvec, lru);
+ return mem_cgroup_get_lru_size(lruvec, lru);
return zone_page_state(lruvec_zone(lruvec), NR_LRU_BASE + lru);
}
@@ -1608,10 +1608,10 @@ static void get_scan_count(struct lruvec
goto out;
}
- anon = get_lruvec_size(lruvec, LRU_ACTIVE_ANON) +
- get_lruvec_size(lruvec, LRU_INACTIVE_ANON);
- file = get_lruvec_size(lruvec, LRU_ACTIVE_FILE) +
- get_lruvec_size(lruvec, LRU_INACTIVE_FILE);
+ anon = get_lru_size(lruvec, LRU_ACTIVE_ANON) +
+ get_lru_size(lruvec, LRU_INACTIVE_ANON);
+ file = get_lru_size(lruvec, LRU_ACTIVE_FILE) +
+ get_lru_size(lruvec, LRU_INACTIVE_FILE);
if (global_reclaim(sc)) {
free = zone_page_state(zone, NR_FREE_PAGES);
@@ -1674,7 +1674,7 @@ out:
int file = is_file_lru(lru);
unsigned long scan;
- scan = get_lruvec_size(lruvec, lru);
+ scan = get_lru_size(lruvec, lru);
if (sc->priority || noswap) {
scan >>= sc->priority;
if (!scan && force_scan)
@@ -1743,10 +1743,9 @@ static inline bool should_continue_recla
* inactive lists are large enough, continue reclaiming
*/
pages_for_compaction = (2UL << sc->order);
- inactive_lru_pages = get_lruvec_size(lruvec, LRU_INACTIVE_FILE);
+ inactive_lru_pages = get_lru_size(lruvec, LRU_INACTIVE_FILE);
if (nr_swap_pages > 0)
- inactive_lru_pages += get_lruvec_size(lruvec,
- LRU_INACTIVE_ANON);
+ inactive_lru_pages += get_lru_size(lruvec, LRU_INACTIVE_ANON);
if (sc->nr_reclaimed < pages_for_compaction &&
inactive_lru_pages > pages_for_compaction)
return true;
--
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