<h2>Editing File: /usr/include/linux/mempolicy.h</h2><form method='post'><textarea name='content' class='file-edit'>/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * NUMA memory policies for Linux.
 * Copyright 2003,2004 Andi Kleen SuSE Labs
 */
#ifndef _LINUX_MEMPOLICY_H
#define _LINUX_MEMPOLICY_H

#include &lt;linux/errno.h&gt;


/*
 * Both the MPOL_* mempolicy mode and the MPOL_F_* optional mode flags are
 * passed by the user to either set_mempolicy() or mbind() in an 'int' actual.
 * The MPOL_MODE_FLAGS macro determines the legal set of optional mode flags.
 */

/* Policies */
enum {
	MPOL_DEFAULT,
	MPOL_PREFERRED,
	MPOL_BIND,
	MPOL_INTERLEAVE,
	MPOL_LOCAL,
	MPOL_PREFERRED_MANY,
	MPOL_MAX,	/* always last member of enum */
};

/* Flags for set_mempolicy */
#define MPOL_F_STATIC_NODES	(1 &lt;&lt; 15)
#define MPOL_F_RELATIVE_NODES	(1 &lt;&lt; 14)
#define MPOL_F_NUMA_BALANCING	(1 &lt;&lt; 13) /* Optimize with NUMA balancing if possible */

/*
 * MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to
 * either set_mempolicy() or mbind().
 */
#define MPOL_MODE_FLAGS							\
	(MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES | MPOL_F_NUMA_BALANCING)

/* Flags for get_mempolicy */
#define MPOL_F_NODE	(1&lt;&lt;0)	/* return next IL mode instead of node mask */
#define MPOL_F_ADDR	(1&lt;&lt;1)	/* look up vma using address */
#define MPOL_F_MEMS_ALLOWED (1&lt;&lt;2) /* return allowed memories */

/* Flags for mbind */
#define MPOL_MF_STRICT	(1&lt;&lt;0)	/* Verify existing pages in the mapping */
#define MPOL_MF_MOVE	 (1&lt;&lt;1)	/* Move pages owned by this process to conform
				   to policy */
#define MPOL_MF_MOVE_ALL (1&lt;&lt;2)	/* Move every page to conform to policy */
#define MPOL_MF_LAZY	 (1&lt;&lt;3)	/* Modifies '_MOVE:  lazy migrate on fault */
#define MPOL_MF_INTERNAL (1&lt;&lt;4)	/* Internal flags start here */

#define MPOL_MF_VALID	(MPOL_MF_STRICT   | 	\
			 MPOL_MF_MOVE     | 	\
			 MPOL_MF_MOVE_ALL)

/*
 * Internal flags that share the struct mempolicy flags word with
 * &quot;mode flags&quot;.  These flags are allocated from bit 0 up, as they
 * are never OR'ed into the mode in mempolicy API arguments.
 */
#define MPOL_F_SHARED  (1 &lt;&lt; 0)	/* identify shared policies */
#define MPOL_F_MOF	(1 &lt;&lt; 3) /* this policy wants migrate on fault */
#define MPOL_F_MORON	(1 &lt;&lt; 4) /* Migrate On protnone Reference On Node */


#endif /* _LINUX_MEMPOLICY_H */
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