X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Ftruncate.c;h=a9566752913596152022f5d22983cb4f2cb4d2cf;hb=5d5b1b9f79ebad81215d11e208e9bfa9679a4ddd;hp=d64296be00d39e5c66199e94269f3b8f5ba0bf64;hpb=a952baa034ae7c2e4a66932005cbc7ebbccfe28d;p=pandora-kernel.git

diff --git a/mm/truncate.c b/mm/truncate.c
index d64296be00d3..a95667529135 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -106,9 +106,8 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
 	cancel_dirty_page(page, PAGE_CACHE_SIZE);
 
 	clear_page_mlock(page);
-	remove_from_page_cache(page);
 	ClearPageMappedToDisk(page);
-	page_cache_release(page);	/* pagecache ref */
+	delete_from_page_cache(page);
 	return 0;
 }
 
@@ -322,11 +321,12 @@ EXPORT_SYMBOL(truncate_inode_pages);
  * pagetables.
  */
 unsigned long invalidate_mapping_pages(struct address_space *mapping,
-				       pgoff_t start, pgoff_t end)
+		pgoff_t start, pgoff_t end)
 {
 	struct pagevec pvec;
 	pgoff_t next = start;
-	unsigned long ret = 0;
+	unsigned long ret;
+	unsigned long count = 0;
 	int i;
 
 	pagevec_init(&pvec, 0);
@@ -353,9 +353,15 @@ unsigned long invalidate_mapping_pages(struct address_space *mapping,
 			if (lock_failed)
 				continue;
 
-			ret += invalidate_inode_page(page);
-
+			ret = invalidate_inode_page(page);
 			unlock_page(page);
+			/*
+			 * Invalidation is a hint that the page is no longer
+			 * of interest and try to speed up its reclaim.
+			 */
+			if (!ret)
+				deactivate_page(page);
+			count += ret;
 			if (next > end)
 				break;
 		}
@@ -363,7 +369,7 @@ unsigned long invalidate_mapping_pages(struct address_space *mapping,
 		mem_cgroup_uncharge_end();
 		cond_resched();
 	}
-	return ret;
+	return count;
 }
 EXPORT_SYMBOL(invalidate_mapping_pages);
 
@@ -389,7 +395,7 @@ invalidate_complete_page2(struct address_space *mapping, struct page *page)
 
 	clear_page_mlock(page);
 	BUG_ON(page_has_private(page));
-	__remove_from_page_cache(page);
+	__delete_from_page_cache(page);
 	spin_unlock_irq(&mapping->tree_lock);
 	mem_cgroup_uncharge_cache_page(page);