diff options
| author | Hugh Dickins <hughd@google.com> | 2012-05-29 15:06:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-29 16:22:25 -0700 |
| commit | 89abfab133ef1f5902abafb744df72793213ac19 (patch) | |
| tree | 29df29e2a34a0af3649417d2e430480c7e7e5fa1 /include | |
| parent | c3c787e8c38557ccf44c670d73aebe630a2b1479 (diff) | |
mm/memcg: move reclaim_stat into lruvec
With mem_cgroup_disabled() now explicit, it becomes clear that the
zone_reclaim_stat structure actually belongs in lruvec, per-zone when
memcg is disabled but per-memcg per-zone when it's enabled.
We can delete mem_cgroup_get_reclaim_stat(), and change
update_page_reclaim_stat() to update just the one set of stats, the one
which get_scan_count() will actually use.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/memcontrol.h | 9 | ||||
| -rw-r--r-- | include/linux/mmzone.h | 29 |
2 files changed, 14 insertions, 24 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 18ea0b7baf32..cfe9050ad8da 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -126,8 +126,6 @@ int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg, int mem_cgroup_select_victim_node(struct mem_cgroup *memcg); unsigned long mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid, unsigned int lrumask); -struct zone_reclaim_stat *mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg, - struct zone *zone); 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, @@ -356,13 +354,6 @@ mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid, return 0; } - -static inline struct zone_reclaim_stat* -mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg, struct zone *zone) -{ - return NULL; -} - static inline struct zone_reclaim_stat* mem_cgroup_get_reclaim_stat_from_page(struct page *page) { diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 4871e31ae277..1b89861eedc0 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -185,8 +185,22 @@ static inline int is_unevictable_lru(enum lru_list lru) return (lru == LRU_UNEVICTABLE); } +struct zone_reclaim_stat { + /* + * The pageout code in vmscan.c keeps track of how many of the + * mem/swap backed and file backed pages are refeferenced. + * The higher the rotated/scanned ratio, the more valuable + * that cache is. + * + * The anon LRU stats live in [0], file LRU stats in [1] + */ + unsigned long recent_rotated[2]; + unsigned long recent_scanned[2]; +}; + struct lruvec { struct list_head lists[NR_LRU_LISTS]; + struct zone_reclaim_stat reclaim_stat; }; /* Mask used at gathering information at once (see memcontrol.c) */ @@ -313,19 +327,6 @@ enum zone_type { #error ZONES_SHIFT -- too many zones configured adjust calculation #endif -struct zone_reclaim_stat { - /* - * The pageout code in vmscan.c keeps track of how many of the - * mem/swap backed and file backed pages are refeferenced. - * The higher the rotated/scanned ratio, the more valuable - * that cache is. - * - * The anon LRU stats live in [0], file LRU stats in [1] - */ - unsigned long recent_rotated[2]; - unsigned long recent_scanned[2]; -}; - struct zone { /* Fields commonly accessed by the page allocator */ @@ -407,8 +408,6 @@ struct zone { spinlock_t lru_lock; struct lruvec lruvec; - struct zone_reclaim_stat reclaim_stat; - unsigned long pages_scanned; /* since last reclaim */ unsigned long flags; /* zone flags, see below */ |