[PATCH] BLOCK: Make it possible to disable the block layer [try #6]

[safe/jmp/linux-2.6] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index ecf2783..c0d4ce1 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -807,9 +807,11 @@ int fastcall set_page_dirty(struct page *page)
 
        if (likely(mapping)) {
                int (*spd)(struct page *) = mapping->a_ops->set_page_dirty;
-               if (spd)
-                       return (*spd)(page);
-               return __set_page_dirty_buffers(page);
+#ifdef CONFIG_BLOCK
+               if (!spd)
+                       spd = __set_page_dirty_buffers;
+#endif
+               return (*spd)(page);
        }
        if (!PageDirty(page)) {
                if (!TestSetPageDirty(page))