diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-05-13 08:11:26 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-05-13 08:11:29 +0200 |
| commit | ad56b0797e67df5e04b2f1a1e02900145c5c16f2 (patch) | |
| tree | 1569bed80a4de531afb88cac9d60ef8bd0aa89f2 /include/linux/poison.h | |
| parent | 668eb65f092902eb7dd526af73d4a7f025a94612 (diff) | |
| parent | b57f95a38233a2e73b679bea4a5453a1cc2a1cc9 (diff) | |
| download | blackbird-op-linux-ad56b0797e67df5e04b2f1a1e02900145c5c16f2.tar.gz blackbird-op-linux-ad56b0797e67df5e04b2f1a1e02900145c5c16f2.zip | |
Merge commit 'v2.6.34-rc7' into tracing/core
Merge reason: Update from -rc5 to -rc7.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/poison.h')
| -rw-r--r-- | include/linux/poison.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/poison.h b/include/linux/poison.h index 2110a81c5e2a..34066ffd893d 100644 --- a/include/linux/poison.h +++ b/include/linux/poison.h @@ -48,6 +48,15 @@ #define POISON_FREE 0x6b /* for use-after-free poisoning */ #define POISON_END 0xa5 /* end-byte of poisoning */ +/********** mm/hugetlb.c **********/ +/* + * Private mappings of hugetlb pages use this poisoned value for + * page->mapping. The core VM should not be doing anything with this mapping + * but futex requires the existence of some page->mapping value even though it + * is unused if PAGE_MAPPING_ANON is set. + */ +#define HUGETLB_POISON ((void *)(0x00300300 + POISON_POINTER_DELTA + PAGE_MAPPING_ANON)) + /********** arch/$ARCH/mm/init.c **********/ #define POISON_FREE_INITMEM 0xcc |
