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x86: add MAP_STACK mmap flag
[mirror_ubuntu-bionic-kernel.git] / include / asm-x86 / mman.h
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1#ifndef _ASM_X86_MMAN_H
2#define _ASM_X86_MMAN_H
3
4#include <asm-generic/mman.h>
5
6#define MAP_32BIT 0x40 /* only give out 32bit addresses */
7
8#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
9#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
10#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
11#define MAP_LOCKED 0x2000 /* pages are locked */
12#define MAP_NORESERVE 0x4000 /* don't check for reservations */
13#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
14#define MAP_NONBLOCK 0x10000 /* do not block on IO */
2fdc8690 15#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */
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16
17#define MCL_CURRENT 1 /* lock all current mappings */
18#define MCL_FUTURE 2 /* lock all future mappings */
19
20#endif /* _ASM_X86_MMAN_H */