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@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.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>

include/linux/memcontrol.h

@@ -121,7 +121,7 @@ void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *);
 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 lruvec *lruvec)
 }
 
 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;
 }

mm/memcontrol.c

@@ -737,7 +737,7 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
 }
 
 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;
 
@@ -1229,8 +1229,8 @@ int mem_cgroup_inactive_anon_is_low(struct lruvec *lruvec)
 	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)
@@ -1246,8 +1246,8 @@ int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec)
 	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);
 }

mm/vmscan.c

@@ -145,10 +145,10 @@ static bool global_reclaim(struct scan_control *sc)
 }
 #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 *lruvec, struct scan_control *sc,
 		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 || !vmscan_swappiness(sc)) {
 			scan >>= sc->priority;
 			if (!scan && force_scan)
@@ -1743,10 +1743,9 @@ static inline bool should_continue_reclaim(struct lruvec *lruvec,
 	 * 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;