From 6e9015716ae9b59e9635d692fddfcfb9582c146c Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Wed, 7 Jan 2009 18:08:15 -0800 Subject: mm: introduce zone_reclaim struct Add zone_reclam_stat struct for later enhancement. A later patch uses this. This patch doesn't any behavior change (yet). Reviewed-by: KAMEZAWA Hiroyuki Signed-off-by: KOSAKI Motohiro Acked-by: Rik van Riel Cc: Balbir Singh Cc: Daisuke Nishimura Cc: Hugh Dickins Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/swap.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'mm/swap.c') diff --git a/mm/swap.c b/mm/swap.c index 8a98a9c90704..26b07e7bc3d3 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -157,6 +157,7 @@ void rotate_reclaimable_page(struct page *page) void activate_page(struct page *page) { struct zone *zone = page_zone(page); + struct zone_reclaim_stat *reclaim_stat = &zone->reclaim_stat; spin_lock_irq(&zone->lru_lock); if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) { @@ -169,8 +170,8 @@ void activate_page(struct page *page) add_page_to_lru_list(zone, page, lru); __count_vm_event(PGACTIVATE); - zone->recent_rotated[!!file]++; - zone->recent_scanned[!!file]++; + reclaim_stat->recent_rotated[!!file]++; + reclaim_stat->recent_scanned[!!file]++; } spin_unlock_irq(&zone->lru_lock); } @@ -385,6 +386,8 @@ void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru) { int i; struct zone *zone = NULL; + struct zone_reclaim_stat *reclaim_stat = NULL; + VM_BUG_ON(is_unevictable_lru(lru)); for (i = 0; i < pagevec_count(pvec); i++) { @@ -396,6 +399,7 @@ void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru) if (zone) spin_unlock_irq(&zone->lru_lock); zone = pagezone; + reclaim_stat = &zone->reclaim_stat; spin_lock_irq(&zone->lru_lock); } VM_BUG_ON(PageActive(page)); @@ -403,10 +407,10 @@ void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru) VM_BUG_ON(PageLRU(page)); SetPageLRU(page); file = is_file_lru(lru); - zone->recent_scanned[file]++; + reclaim_stat->recent_scanned[file]++; if (is_active_lru(lru)) { SetPageActive(page); - zone->recent_rotated[file]++; + reclaim_stat->recent_rotated[file]++; } add_page_to_lru_list(zone, page, lru); } -- cgit v1.2.3