Merge commit 'v2.6.26' into x86/core

[pandora-kernel.git] / include / linux / page-flags.h

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 02955a1..0d2a4e7 100644 (file)
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -307,5 +307,29 @@ static inline void __ClearPageTail(struct page *page)
 }
 
 #endif /* !PAGEFLAGS_EXTENDED */
+
+#define PAGE_FLAGS     (1 << PG_lru   | 1 << PG_private   | 1 << PG_locked | \
+                        1 << PG_buddy | 1 << PG_writeback | \
+                        1 << PG_slab  | 1 << PG_swapcache | 1 << PG_active)
+
+/*
+ * Flags checked in bad_page().  Pages on the free list should not have
+ * these flags set.  It they are, there is a problem.
+ */
+#define PAGE_FLAGS_CLEAR_WHEN_BAD (PAGE_FLAGS | 1 << PG_reclaim | 1 << PG_dirty)
+
+/*
+ * Flags checked when a page is freed.  Pages being freed should not have
+ * these flags set.  It they are, there is a problem.
+ */
+#define PAGE_FLAGS_CHECK_AT_FREE (PAGE_FLAGS | 1 << PG_reserved)
+
+/*
+ * Flags checked when a page is prepped for return by the page allocator.
+ * Pages being prepped should not have these flags set.  It they are, there
+ * is a problem.
+ */
+#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | 1 << PG_reserved | 1 << PG_dirty)
+
 #endif /* !__GENERATING_BOUNDS_H */
 #endif /* PAGE_FLAGS_H */