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SubjectRe: [PATCH v3 12/21] mm: push lruvec into update_page_reclaim_stat()
On Thu, 23 Feb 2012 17:52:38 +0400
Konstantin Khlebnikov <khlebnikov@openvz.org> wrote:

> Push lruvec pointer into update_page_reclaim_stat()
> * drop page argument
> * drop active and file arguments, use lru instead
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>


> ---
> mm/swap.c | 30 +++++++++---------------------
> 1 files changed, 9 insertions(+), 21 deletions(-)
>
> diff --git a/mm/swap.c b/mm/swap.c
> index 0cbc558..1f5731e 100644
> --- a/mm/swap.c
> +++ b/mm/swap.c
> @@ -276,24 +276,19 @@ void rotate_reclaimable_page(struct page *page)
> }
> }
>
> -static void update_page_reclaim_stat(struct zone *zone, struct page *page,
> - int file, int rotated)
> +static void update_page_reclaim_stat(struct lruvec *lruvec, enum lru_list lru)
> {
> - struct zone_reclaim_stat *reclaim_stat;
> -
> - reclaim_stat = &page_lruvec(page)->reclaim_stat;
> + struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
> + int file = is_file_lru(lru);
>
> reclaim_stat->recent_scanned[file]++;
> - if (rotated)
> + if (is_active_lru(lru))
> reclaim_stat->recent_rotated[file]++;
> }
>
> static void __activate_page(struct page *page, void *arg)
> {
> - struct zone *zone = page_zone(page);
> -
> if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
> - int file = page_is_file_cache(page);
> int lru = page_lru_base_type(page);
> struct lruvec *lruvec = page_lruvec(page);
>
> @@ -304,7 +299,7 @@ static void __activate_page(struct page *page, void *arg)
> add_page_to_lru_list(lruvec, page, lru);
> __count_vm_event(PGACTIVATE);
>
> - update_page_reclaim_stat(zone, page, file, 1);
> + update_page_reclaim_stat(lruvec, lru);
> }
> }
>
> @@ -443,7 +438,6 @@ static void lru_deactivate_fn(struct page *page, void *arg)
> {
> int lru, file;
> bool active;
> - struct zone *zone = page_zone(page);
> struct lruvec *lruvec;
>
> if (!PageLRU(page))
> @@ -484,7 +478,7 @@ static void lru_deactivate_fn(struct page *page, void *arg)
>
> if (active)
> __count_vm_event(PGDEACTIVATE);
> - update_page_reclaim_stat(zone, page, file, 0);
> + update_page_reclaim_stat(lruvec, lru);
> }
>
> /*
> @@ -649,9 +643,7 @@ EXPORT_SYMBOL(__pagevec_release);
> void lru_add_page_tail(struct zone* zone,
> struct page *page, struct page *page_tail)
> {
> - int active;
> enum lru_list lru;
> - const int file = 0;
> struct lruvec *lruvec = page_lruvec(page);
>
> VM_BUG_ON(!PageHead(page));
> @@ -664,13 +656,11 @@ void lru_add_page_tail(struct zone* zone,
> if (page_evictable(page_tail, NULL)) {
> if (PageActive(page)) {
> SetPageActive(page_tail);
> - active = 1;
> lru = LRU_ACTIVE_ANON;
> } else {
> - active = 0;
> lru = LRU_INACTIVE_ANON;
> }
> - update_page_reclaim_stat(zone, page_tail, file, active);
> + update_page_reclaim_stat(lruvec, lru);
> } else {
> SetPageUnevictable(page_tail);
> lru = LRU_UNEVICTABLE;
> @@ -698,17 +688,15 @@ static void __pagevec_lru_add_fn(struct page *page, void *arg)
> {
> enum lru_list lru = (enum lru_list)arg;
> struct lruvec *lruvec = page_lruvec(page);
> - int file = is_file_lru(lru);
> - int active = is_active_lru(lru);
>
> VM_BUG_ON(PageActive(page));
> VM_BUG_ON(PageUnevictable(page));
> VM_BUG_ON(PageLRU(page));
>
> SetPageLRU(page);
> - if (active)
> + if (is_active_lru(lru))
> SetPageActive(page);
> - update_page_reclaim_stat(lruvec_zone(lruvec), page, file, active);
> + update_page_reclaim_stat(lruvec, lru);
> add_page_to_lru_list(lruvec, page, lru);
> }
>
>
> --
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