diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/list.h | 9 | ||||
| -rw-r--r-- | include/linux/poison.h | 45 |
2 files changed, 46 insertions, 8 deletions
diff --git a/include/linux/list.h b/include/linux/list.h index 37ca31b21bb..6b74adf5297 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -4,18 +4,11 @@ #ifdef __KERNEL__ #include <linux/stddef.h> +#include <linux/poison.h> #include <linux/prefetch.h> #include <asm/system.h> /* - * These are non-NULL pointers that will result in page faults - * under normal circumstances, used to verify that nobody uses - * non-initialized list entries. - */ -#define LIST_POISON1 ((void *) 0x00100100) -#define LIST_POISON2 ((void *) 0x00200200) - -/* * Simple doubly linked list implementation. * * Some of the internal functions ("__xxx") are useful when diff --git a/include/linux/poison.h b/include/linux/poison.h new file mode 100644 index 00000000000..d536de7dd82 --- /dev/null +++ b/include/linux/poison.h @@ -0,0 +1,45 @@ +#ifndef _LINUX_POISON_H +#define _LINUX_POISON_H + +/********** include/linux/list.h **********/ +/* + * These are non-NULL pointers that will result in page faults + * under normal circumstances, used to verify that nobody uses + * non-initialized list entries. + */ +#define LIST_POISON1 ((void *) 0x00100100) +#define LIST_POISON2 ((void *) 0x00200200) + +/********** mm/slab.c **********/ +/* + * 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 */ + +/********** arch/$ARCH/mm/init.c **********/ +#define POISON_FREE_INITMEM 0xcc + +/********** arch/x86_64/mm/init.c **********/ +#define POISON_FREE_INITDATA 0xba + +/********** arch/ia64/hp/common/sba_iommu.c **********/ +/* + * arch/ia64/hp/common/sba_iommu.c uses a 16-byte poison string with a + * value of "SBAIOMMU POISON\0" for spill-over poisoning. + */ + +/********** fs/jbd/journal.c **********/ +#define JBD_POISON_FREE 0x5b + +/********** drivers/base/dmapool.c **********/ +#define POOL_POISON_FREED 0xa7 /* !inuse */ +#define POOL_POISON_ALLOCATED 0xa9 /* !initted */ + +#endif |