Merge commit 'v2.6.27-rc7' into x86/debug

1 files changed, 7 insertions, 9 deletions

diff --git a/mm/truncate.c b/mm/truncate.c
index b8961cb6341..6650c1d878b 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -104,7 +104,6 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
 	cancel_dirty_page(page, PAGE_CACHE_SIZE);
 
 	remove_from_page_cache(page);
-	ClearPageUptodate(page);
 	ClearPageMappedToDisk(page);
 	page_cache_release(page);	/* pagecache ref */
 }
@@ -188,7 +187,7 @@ void truncate_inode_pages_range(struct address_space *mapping,
 			if (page_index > next)
 				next = page_index;
 			next++;
-			if (TestSetPageLocked(page))
+			if (!trylock_page(page))
 				continue;
 			if (PageWriteback(page)) {
 				unlock_page(page);
@@ -281,7 +280,7 @@ unsigned long __invalidate_mapping_pages(struct address_space *mapping,
 			pgoff_t index;
 			int lock_failed;
 
-			lock_failed = TestSetPageLocked(page);
+			lock_failed = !trylock_page(page);
 
 			/*
 			 * We really shouldn't be looking at the ->index of an
@@ -349,18 +348,17 @@ invalidate_complete_page2(struct address_space *mapping, struct page *page)
 	if (PagePrivate(page) && !try_to_release_page(page, GFP_KERNEL))
 		return 0;
 
-	write_lock_irq(&mapping->tree_lock);
+	spin_lock_irq(&mapping->tree_lock);
 	if (PageDirty(page))
 		goto failed;
 
 	BUG_ON(PagePrivate(page));
 	__remove_from_page_cache(page);
-	write_unlock_irq(&mapping->tree_lock);
-	ClearPageUptodate(page);
+	spin_unlock_irq(&mapping->tree_lock);
 	page_cache_release(page);	/* pagecache ref */
 	return 1;
 failed:
-	write_unlock_irq(&mapping->tree_lock);
+	spin_unlock_irq(&mapping->tree_lock);
 	return 0;
 }
 
@@ -382,7 +380,7 @@ static int do_launder_page(struct address_space *mapping, struct page *page)
  * Any pages which are found to be mapped into pagetables are unmapped prior to
  * invalidation.
  *
- * Returns -EIO if any pages could not be invalidated.
+ * Returns -EBUSY if any pages could not be invalidated.
  */
 int invalidate_inode_pages2_range(struct address_space *mapping,
 				  pgoff_t start, pgoff_t end)
@@ -442,7 +440,7 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
 			ret2 = do_launder_page(mapping, page);
 			if (ret2 == 0) {
 				if (!invalidate_complete_page2(mapping, page))
-					ret2 = -EIO;
+					ret2 = -EBUSY;
 			}
 			if (ret2 < 0)
 				ret = ret2;