diff options
Diffstat (limited to 'include/uapi/asm-generic/mman-common.h')
| -rw-r--r-- | include/uapi/asm-generic/mman-common.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h index d030d2c2647..ddc3b36f104 100644 --- a/include/uapi/asm-generic/mman-common.h +++ b/include/uapi/asm-generic/mman-common.h @@ -50,9 +50,20 @@ #define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, overrides the coredump filter bits */ -#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */ +#define MADV_DODUMP 17 /* Clear the MADV_DONTDUMP flag */ /* compatibility flags */ #define MAP_FILE 0 +/* + * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size. + * This gives us 6 bits, which is enough until someone invents 128 bit address + * spaces. + * + * Assume these are all power of twos. + * When 0 use the default page size. + */ +#define MAP_HUGE_SHIFT 26 +#define MAP_HUGE_MASK 0x3f + #endif /* __ASM_GENERIC_MMAN_COMMON_H */ |