[PATCH] mm: less atomic ops

In the page release paths, we can be sure that nobody will mess with our
page->flags because the refcount has dropped to 0.  So no need for atomic
operations here.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/swap.c b/mm/swap.c
index cf88226cf96d..91b7e2026f69 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -215,7 +215,7 @@ void fastcall __page_cache_release(struct page *page)
 
                 spin_lock_irqsave(&zone->lru_lock, flags);
                 BUG_ON(!PageLRU(page));
-                ClearPageLRU(page);
+                __ClearPageLRU(page);
                 del_page_from_lru(zone, page);
                 spin_unlock_irqrestore(&zone->lru_lock, flags);
         }
@@ -266,7 +266,7 @@ void release_pages(struct page **pages, int nr, int cold)
                                 spin_lock_irq(&zone->lru_lock);
                         }
                         BUG_ON(!PageLRU(page));
-                        ClearPageLRU(page);
+                        __ClearPageLRU(page);
                         del_page_from_lru(zone, page);
                 }