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authorIngo Molnar <mingo@elte.hu>2008-06-25 12:30:33 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-25 12:30:33 +0200
commit48cf937f48f68bd1e61f37c6357dbff5adb95532 (patch)
treed9e2368a419adc2c11691be2842c66213bec5a42 /include/linux/page-flags.h
parentfce39665abb71d01d74ac74eb13dd69a799dfc2f (diff)
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
Merge branch 'linus' into x86/i8259tip-x86-i8259-2008-06-25_10.30_Wed
Diffstat (limited to 'include/linux/page-flags.h')
-rw-r--r--include/linux/page-flags.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 590cff32415d..f31debfac926 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -306,5 +306,29 @@ 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 */