PG_lazyfree and PG_booked shares the same bit.
Either it is a bug that shall fixed by the following patch, or
the situation should be explicitly documented?
Signed-off-by: Fengguang Wu <[email protected]>
---
include/linux/page-flags.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.21-mm2.orig/include/linux/page-flags.h
+++ linux-2.6.21-mm2/include/linux/page-flags.h
@@ -91,7 +91,7 @@
#define PG_buddy 19 /* Page is free, on buddy lists */
#define PG_booked 20 /* Has blocks reserved on-disk */
-#define PG_lazyfree 20 /* MADV_FREE potential throwaway */
+#define PG_lazyfree 21 /* MADV_FREE potential throwaway */
/* PG_owner_priv_1 users should have descriptive aliases */
#define PG_checked PG_owner_priv_1 /* Used by some filesystems */
-
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