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authorRandy Dunlap <rdunlap@xenotime.net>2006-06-27 02:53:52 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-27 17:32:38 -0700
commitc9cf55285e87ac423c45d9efca750d3f50234d10 (patch)
treed46f3e90fbb38115c25b3315f6280ad65f83a14f /mm/slab.c
parente6e5494cb23d1933735ee47cc674ffe1c4afed6f (diff)
downloadlwn-c9cf55285e87ac423c45d9efca750d3f50234d10.tar.gz
lwn-c9cf55285e87ac423c45d9efca750d3f50234d10.zip
[PATCH] add poison.h and patch primary users
Localize poison values into one header file for better documentation and easier/quicker debugging and so that the same values won't be used for multiple purposes. Use these constants in core arch., mm, driver, and fs code. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Matt Mackall <mpm@selenic.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/slab.c')
-rw-r--r--mm/slab.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 98ac20bc0de9..47982c2d9f39 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -89,6 +89,7 @@
#include <linux/config.h>
#include <linux/slab.h>
#include <linux/mm.h>
+#include <linux/poison.h>
#include <linux/swap.h>
#include <linux/cache.h>
#include <linux/interrupt.h>
@@ -492,17 +493,6 @@ struct kmem_cache {
#endif
#if DEBUG
-/*
- * Magic nums for obj red zoning.
- * Placed in the first word before and the first word after an obj.
- */
-#define RED_INACTIVE 0x5A2CF071UL /* when obj is inactive */
-#define RED_ACTIVE 0x170FC2A5UL /* when obj is active */
-
-/* ...and for poisoning */
-#define POISON_INUSE 0x5a /* for use-uninitialised poisoning */
-#define POISON_FREE 0x6b /* for use-after-free poisoning */
-#define POISON_END 0xa5 /* end-byte of poisoning */
/*
* memory layout of objects: