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authorJohannes Weiner <jweiner@redhat.com>2012-01-13 05:18:15 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-13 08:13:05 +0400
commit925b7673cce39116ce61e7a06683a4a0dad1e72a (patch)
tree66c134db836e531e196ee3dfc23c124ff74ac827 /mm/page_cgroup.c
parent6290df545814990ca2663baf6e894669132d5f73 (diff)
downloadlinux-925b7673cce39116ce61e7a06683a4a0dad1e72a.tar.xz
mm: make per-memcg LRU lists exclusive
Now that all code that operated on global per-zone LRU lists is converted to operate on per-memory cgroup LRU lists instead, there is no reason to keep the double-LRU scheme around any longer. The pc->lru member is removed and page->lru is linked directly to the per-memory cgroup LRU lists, which removes two pointers from a descriptor that exists for every page frame in the system. Signed-off-by: Johannes Weiner <jweiner@redhat.com> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Ying Han <yinghan@google.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Reviewed-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Greg Thelen <gthelen@google.com> Cc: Michel Lespinasse <walken@google.com> Cc: Rik van Riel <riel@redhat.com> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_cgroup.c')
-rw-r--r--mm/page_cgroup.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 2d123f94a8df..f59405a8d752 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -16,7 +16,6 @@ static void __meminit init_page_cgroup(struct page_cgroup *pc, unsigned long id)
pc->flags = 0;
set_page_cgroup_array_id(pc, id);
pc->mem_cgroup = NULL;
- INIT_LIST_HEAD(&pc->lru);
}
static unsigned long total_usage;