From: Andrew Morton <akpm@osdl.org>
Date: Wed, 5 May 2004 01:16:42 +0000 (-0700)
Subject: [PATCH] page_mapping race fix
X-Git-Tag: v2.6.6~10^2~7^2~5
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=fb2fc47c4dd051833153801b4de2ee7e1b8b8917;p=history.git

[PATCH] page_mapping race fix

From: Hugh Dickins <hugh@veritas.com>

Remove this development-only debug code - Hugh thinks that its BUG_ON() can
trigger by accident.
---

diff --git a/mm/rmap.c b/mm/rmap.c
index 24e09e3bb082..5577805ae992 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -39,7 +39,7 @@
  * Something oopsable to put for now in the page->mapping
  * of an anonymous page, to test that it is ignored.
  */
-#define ANON_MAPPING_DEBUG	((struct address_space *) 0xADB)
+#define ANON_MAPPING_DEBUG	((struct address_space *) 0)
 
 static inline void clear_page_anon(struct page *page)
 {