| 1 |
13 |
serginhofr |
/*
|
| 2 |
|
|
* NUMA memory policies for Linux.
|
| 3 |
|
|
* Copyright 2003,2004 Andi Kleen SuSE Labs
|
| 4 |
|
|
*/
|
| 5 |
|
|
#ifndef _LINUX_MEMPOLICY_H
|
| 6 |
|
|
#define _LINUX_MEMPOLICY_H
|
| 7 |
|
|
|
| 8 |
|
|
#include <linux/errno.h>
|
| 9 |
|
|
|
| 10 |
|
|
|
| 11 |
|
|
/*
|
| 12 |
|
|
* Both the MPOL_* mempolicy mode and the MPOL_F_* optional mode flags are
|
| 13 |
|
|
* passed by the user to either set_mempolicy() or mbind() in an 'int' actual.
|
| 14 |
|
|
* The MPOL_MODE_FLAGS macro determines the legal set of optional mode flags.
|
| 15 |
|
|
*/
|
| 16 |
|
|
|
| 17 |
|
|
/* Policies */
|
| 18 |
|
|
enum {
|
| 19 |
|
|
MPOL_DEFAULT,
|
| 20 |
|
|
MPOL_PREFERRED,
|
| 21 |
|
|
MPOL_BIND,
|
| 22 |
|
|
MPOL_INTERLEAVE,
|
| 23 |
|
|
MPOL_LOCAL,
|
| 24 |
|
|
MPOL_MAX, /* always last member of enum */
|
| 25 |
|
|
};
|
| 26 |
|
|
|
| 27 |
|
|
enum mpol_rebind_step {
|
| 28 |
|
|
MPOL_REBIND_ONCE, /* do rebind work at once(not by two step) */
|
| 29 |
|
|
MPOL_REBIND_STEP1, /* first step(set all the newly nodes) */
|
| 30 |
|
|
MPOL_REBIND_STEP2, /* second step(clean all the disallowed nodes)*/
|
| 31 |
|
|
MPOL_REBIND_NSTEP,
|
| 32 |
|
|
};
|
| 33 |
|
|
|
| 34 |
|
|
/* Flags for set_mempolicy */
|
| 35 |
|
|
#define MPOL_F_STATIC_NODES (1 << 15)
|
| 36 |
|
|
#define MPOL_F_RELATIVE_NODES (1 << 14)
|
| 37 |
|
|
|
| 38 |
|
|
/*
|
| 39 |
|
|
* MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to
|
| 40 |
|
|
* either set_mempolicy() or mbind().
|
| 41 |
|
|
*/
|
| 42 |
|
|
#define MPOL_MODE_FLAGS (MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES)
|
| 43 |
|
|
|
| 44 |
|
|
/* Flags for get_mempolicy */
|
| 45 |
|
|
#define MPOL_F_NODE (1<<0) /* return next IL mode instead of node mask */
|
| 46 |
|
|
#define MPOL_F_ADDR (1<<1) /* look up vma using address */
|
| 47 |
|
|
#define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */
|
| 48 |
|
|
|
| 49 |
|
|
/* Flags for mbind */
|
| 50 |
|
|
#define MPOL_MF_STRICT (1<<0) /* Verify existing pages in the mapping */
|
| 51 |
|
|
#define MPOL_MF_MOVE (1<<1) /* Move pages owned by this process to conform
|
| 52 |
|
|
to policy */
|
| 53 |
|
|
#define MPOL_MF_MOVE_ALL (1<<2) /* Move every page to conform to policy */
|
| 54 |
|
|
#define MPOL_MF_LAZY (1<<3) /* Modifies '_MOVE: lazy migrate on fault */
|
| 55 |
|
|
#define MPOL_MF_INTERNAL (1<<4) /* Internal flags start here */
|
| 56 |
|
|
|
| 57 |
|
|
#define MPOL_MF_VALID (MPOL_MF_STRICT | \
|
| 58 |
|
|
MPOL_MF_MOVE | \
|
| 59 |
|
|
MPOL_MF_MOVE_ALL)
|
| 60 |
|
|
|
| 61 |
|
|
/*
|
| 62 |
|
|
* Internal flags that share the struct mempolicy flags word with
|
| 63 |
|
|
* "mode flags". These flags are allocated from bit 0 up, as they
|
| 64 |
|
|
* are never OR'ed into the mode in mempolicy API arguments.
|
| 65 |
|
|
*/
|
| 66 |
|
|
#define MPOL_F_SHARED (1 << 0) /* identify shared policies */
|
| 67 |
|
|
#define MPOL_F_LOCAL (1 << 1) /* preferred local allocation */
|
| 68 |
|
|
#define MPOL_F_REBINDING (1 << 2) /* identify policies in rebinding */
|
| 69 |
|
|
#define MPOL_F_MOF (1 << 3) /* this policy wants migrate on fault */
|
| 70 |
|
|
#define MPOL_F_MORON (1 << 4) /* Migrate On pte_numa Reference On Node */
|
| 71 |
|
|
|
| 72 |
|
|
|
| 73 |
|
|
#endif /* _LINUX_MEMPOLICY_H */
|
