X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;ds=sidebyside;f=mm%2Fpage-writeback.c;fp=mm%2Fpage-writeback.c;h=b3a198c9248d7947e7e3a929848431f7fbcb5954;hb=fba2591bf4e418b6c3f9f8794c9dd8fe40ae7bd9;hp=237107c1b0847d79e6139daf5c811ea1c432c087;hpb=46d2277c796f9f4937bfa668c40b2e3f43e93dd0;p=powerpc.git

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 237107c1b0..b3a198c924 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -844,38 +844,6 @@ int set_page_dirty_lock(struct page *page)
 }
 EXPORT_SYMBOL(set_page_dirty_lock);
 
-/*
- * Clear a page's dirty flag, while caring for dirty memory accounting. 
- * Returns true if the page was previously dirty.
- */
-int test_clear_page_dirty(struct page *page)
-{
-	struct address_space *mapping = page_mapping(page);
-	unsigned long flags;
-
-	if (!mapping)
-		return TestClearPageDirty(page);
-
-	write_lock_irqsave(&mapping->tree_lock, flags);
-	if (TestClearPageDirty(page)) {
-		radix_tree_tag_clear(&mapping->page_tree,
-				page_index(page), PAGECACHE_TAG_DIRTY);
-		write_unlock_irqrestore(&mapping->tree_lock, flags);
-		/*
-		 * We can continue to use `mapping' here because the
-		 * page is locked, which pins the address_space
-		 */
-		if (mapping_cap_account_dirty(mapping)) {
-			page_mkclean(page);
-			dec_zone_page_state(page, NR_FILE_DIRTY);
-		}
-		return 1;
-	}
-	write_unlock_irqrestore(&mapping->tree_lock, flags);
-	return 0;
-}
-EXPORT_SYMBOL(test_clear_page_dirty);
-
 /*
  * Clear a page's dirty flag, while caring for dirty memory accounting.
  * Returns true if the page was previously dirty.