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authorJohannes Weiner <jweiner@redhat.com>2012-01-12 17:18:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-12 20:13:05 -0800
commit6290df545814990ca2663baf6e894669132d5f73 (patch)
treec62472270ba81a7146bed0854be74e2e2338c629 /mm/swap.c
parentb95a2f2d486d0d768a92879c023a03757b9c7e58 (diff)
downloadop-kernel-dev-6290df545814990ca2663baf6e894669132d5f73.zip
op-kernel-dev-6290df545814990ca2663baf6e894669132d5f73.tar.gz
mm: collect LRU list heads into struct lruvec
Having a unified structure with a LRU list set for both global zones and per-memcg zones allows to keep that code simple which deals with LRU lists and does not care about the container itself. Once the per-memcg LRU lists directly link struct pages, the isolation function and all other list manipulations are shared between the memcg case and the global LRU case. Signed-off-by: Johannes Weiner <jweiner@redhat.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: Ying Han <yinghan@google.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> Cc: 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/swap.c')
-rw-r--r--mm/swap.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/mm/swap.c b/mm/swap.c
index 67a09a6..76ef79d 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -236,7 +236,7 @@ static void pagevec_move_tail_fn(struct page *page, void *arg)
if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
enum lru_list lru = page_lru_base_type(page);
- list_move_tail(&page->lru, &zone->lru[lru].list);
+ list_move_tail(&page->lru, &zone->lruvec.lists[lru]);
mem_cgroup_rotate_reclaimable_page(page);
(*pgmoved)++;
}
@@ -480,7 +480,7 @@ static void lru_deactivate_fn(struct page *page, void *arg)
* The page's writeback ends up during pagevec
* We moves tha page into tail of inactive.
*/
- list_move_tail(&page->lru, &zone->lru[lru].list);
+ list_move_tail(&page->lru, &zone->lruvec.lists[lru]);
mem_cgroup_rotate_reclaimable_page(page);
__count_vm_event(PGROTATED);
}
@@ -654,7 +654,6 @@ void lru_add_page_tail(struct zone* zone,
int active;
enum lru_list lru;
const int file = 0;
- struct list_head *head;
VM_BUG_ON(!PageHead(page));
VM_BUG_ON(PageCompound(page_tail));
@@ -674,10 +673,10 @@ void lru_add_page_tail(struct zone* zone,
}
update_page_reclaim_stat(zone, page_tail, file, active);
if (likely(PageLRU(page)))
- head = page->lru.prev;
+ __add_page_to_lru_list(zone, page_tail, lru,
+ page->lru.prev);
else
- head = &zone->lru[lru].list;
- __add_page_to_lru_list(zone, page_tail, lru, head);
+ add_page_to_lru_list(zone, page_tail, lru);
} else {
SetPageUnevictable(page_tail);
add_page_to_lru_list(zone, page_tail, LRU_UNEVICTABLE);
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