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root/include/asm-generic/mman.h

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INCLUDED FROM


#ifndef _ASM_GENERIC_MMAN_H
#define _ASM_GENERIC_MMAN_H

/*
 Author: Michael S. Tsirkin <mst@mellanox.co.il>, Mellanox Technologies Ltd.
 Based on: asm-xxx/mman.h
*/

#define PROT_READ       0x1             /* page can be read */
#define PROT_WRITE      0x2             /* page can be written */
#define PROT_EXEC       0x4             /* page can be executed */
#define PROT_SEM        0x8             /* page may be used for atomic ops */
#define PROT_NONE       0x0             /* page can not be accessed */
#define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end of growsup vma */

#define MAP_SHARED      0x01            /* Share changes */
#define MAP_PRIVATE     0x02            /* Changes are private */
#define MAP_TYPE        0x0f            /* Mask for type of mapping */
#define MAP_FIXED       0x10            /* Interpret addr exactly */
#define MAP_ANONYMOUS   0x20            /* don't use a file */

#define MS_ASYNC        1               /* sync memory asynchronously */
#define MS_INVALIDATE   2               /* invalidate the caches */
#define MS_SYNC         4               /* synchronous memory sync */

#define MADV_NORMAL     0               /* no further special treatment */
#define MADV_RANDOM     1               /* expect random page references */
#define MADV_SEQUENTIAL 2               /* expect sequential page references */
#define MADV_WILLNEED   3               /* will need these pages */
#define MADV_DONTNEED   4               /* don't need these pages */

/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE     9               /* remove these pages & resources */
#define MADV_DONTFORK   10              /* don't inherit across fork */
#define MADV_DOFORK     11              /* do inherit across fork */

/* compatibility flags */
#define MAP_FILE        0

#endif

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