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authorKonstantin Khlebnikov2012-05-29 15:06:58 -0700
committerLinus Torvalds2012-05-29 16:22:26 -0700
commit7f5e86c2ccc1480946d2c869d7f7d5278e828092 (patch)
tree704612422963868042c9d240b4a395bd7bce8469 /mm/mmzone.c
parent9e3b2f8cd340e13353a44c9a34caef2848131ed7 (diff)
mm: add link from struct lruvec to struct zone
This is the first stage of struct mem_cgroup_zone removal. Further patches replace struct mem_cgroup_zone with a pointer to struct lruvec. If CONFIG_CGROUP_MEM_RES_CTLR=n lruvec_zone() is just container_of(). Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmzone.c')
-rw-r--r--mm/mmzone.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 7cf7b7ddc7c5..6830eab5bf09 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -86,3 +86,17 @@ int memmap_valid_within(unsigned long pfn,
return 1;
}
#endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */
+
+void lruvec_init(struct lruvec *lruvec, struct zone *zone)
+{
+ enum lru_list lru;
+
+ memset(lruvec, 0, sizeof(struct lruvec));
+
+ for_each_lru(lru)
+ INIT_LIST_HEAD(&lruvec->lists[lru]);
+
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR
+ lruvec->zone = zone;
+#endif
+}