diff options
| author | Vasily Kulikov <[email protected]> | 2016-01-15 16:57:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-01-16 11:17:22 -0800 |
| commit | b8a0255db958b8f70c5267dda152e93b6fda1778 (patch) | |
| tree | 3c37c21b3a4a2be86df8e87731e563c0bdbedda4 | |
| parent | 6611d8d76132f86faa501de9451a89bf23fb2371 (diff) | |
include/linux/poison.h: use POISON_POINTER_DELTA for poison pointers
TIMER_ENTRY_STATIC and TAIL_MAPPING are defined as poison pointers which
should point to nowhere. Redefine them using POISON_POINTER_DELTA
arithmetics to make sure they really point to non-mappable area declared
by the target architecture.
Signed-off-by: Vasily Kulikov <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Cc: Solar Designer <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | include/linux/poison.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/poison.h b/include/linux/poison.h index 76c3b6c38c16..4a27153574e2 100644 --- a/include/linux/poison.h +++ b/include/linux/poison.h @@ -27,14 +27,14 @@ * Magic number "tsta" to indicate a static timer initializer * for the object debugging code. */ -#define TIMER_ENTRY_STATIC ((void *) 0x74737461) +#define TIMER_ENTRY_STATIC ((void *) 0x300 + POISON_POINTER_DELTA) /********** mm/debug-pagealloc.c **********/ #define PAGE_POISON 0xaa /********** mm/page_alloc.c ************/ -#define TAIL_MAPPING ((void *) 0x01014A11 + POISON_POINTER_DELTA) +#define TAIL_MAPPING ((void *) 0x400 + POISON_POINTER_DELTA) /********** mm/slab.c **********/ /* |