.\" Copyright 2003,2004 Andi Kleen, SuSE Labs.
.\"
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.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
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.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
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.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" 2006-02-03, mtk, substantial wording changes and other improvements
.\"
.\" Japanese Version Copyright (c) 2006 Akihiro MOTOKI
.\"         all rights reserved.
.\" Translated 2006-08-14, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.39
.\"
.TH GET_MEMPOLICY 2 2006-02-07 "Linux" "Linux Programmer's Manual"
.SH ̾
get_mempolicy \- ץ NUMA Υݥꥷ
.SH 
.B "#include <numaif.h>"
.nf
.sp
.BI "int get_mempolicy(int *" policy ", unsigned long *" nodemask ,
.BI "                  unsigned long " maxnode ", unsigned long " addr ,
.BI "                  unsigned long " flags );
.fi
.\" FIXME rewrite this DESCRIPTION. it is confusing.
.SH 
.BR get_mempolicy ()
ϡƤӽФץ⤷ϻꤵ줿ꥢɥ쥹
NUMA ݥꥷ
.I flags
˽äƼ롣

NUMA (оΥꥢ) ޥǤϡCPU ˤ
ꥳȥ餬ۤʤꡢΥۤʤäƤ롣
ݥꥷϡɤΥΡɤΥ򤽤Υץ
Ƥ뤫ΤǤ롣

.I flags
 0 ꤵ줿硢
.RB ( set_mempolicy (2)
ꤵ줿)
ƤӽФץΥǥեȥݥꥷ˴ؤ֤

.I flags

.B MPOL_F_ADDR
ꤵ줿硢
.I addr
ǻꤵ줿ꥢɥ쥹ŬѤƤݥꥷ˴ؤ֤
.BR set_mempolicy (2)
Ȥä
.I addr
ޤڡФƥݥꥷꤵƤˤϡ
֤ݥꥷϥץΥǥեȥݥꥷȰ㤦Ȥ롣

.I policy
 NULL ʳξ硢ݥꥷ֤Τ
.I policy
Ȥ롣
.I nodemask
 NULL ʳξ硢ΥݥꥷбΡɥޥ֤Τ
.I nodemask
Ȥ롣
.I maxnode

.I nodemask
˳ǼǤӥåȿ 1 ­ͤꤹ롣
ӥåȿϾ
.I "unsigned long"
ܿڤ夲롣
.\"
.\" If
.\" .I flags
.\" specifies both
.\" .B MPOL_F_NODE
.\" and
.\" .BR MPOL_F_ADDR ,
.\" then
.\" .I policy
.\" instead returns the number of the node on which the address
.\" .I addr
.\" is allocated.
.\"
.\" If
.\" .I flags
.\" specifies
.\" .B MPOL_F_NODE
.\" but not
.\" .BR MPOL_F_ADDR ,
.\" and the process's current policy is
.\" .BR MPOL_INTERLEAVE ,
.\" then
.\" checkme: Andi's text below says that the info is returned in
.\" 'nodemask', not 'policy':
.\" .I policy
.\" instead returns the number of the next node that will be used for
.\" interleaving allocation.
.\" FIXME .
.\" The other valid flag is
.\" .I MPOL_F_NODE.
.\" It is only valid when the policy is
.\" .I MPOL_INTERLEAVE.
.\" In this case not the interleave mask, but an unsigned long with the next
.\" node that would be used for interleaving is returned in
.\" .I nodemask.
.\" Other flag values are reserved.

ǽʥݥꥷγפˤĤƤ
.BR set_mempolicy (2)
򻲾ȡ
.SH ֤
ȡ
.BR get_mempolicy ()
 0 ֤顼ξ硢\-1 ֤
.I errno
˥顼򼨤ͤꤹ롣
.\" .SH ERRORS
.\" FIXME -- no errors are listed on this page
.\" .
.\" .TP
.\" .B EINVAL
.\" .I nodemask
.\" is non-NULL, and
.\" .I maxnode
.\" is too small;
.\" or
.\" .I flags
.\" specified values other than
.\" .B MPOL_F_NODE
.\" or
.\" .BR MPOL_F_ADDR ;
.\" or
.\" .I flags
.\" specified
.\" .B MPOL_F_ADDR
.\" and
.\" .I addr
.\" is NULL.
.\" (And there are other
.\" .B EINVAL
.\" cases.)
.SH 
Υƥॳ Linux ȼǤ롣
.SH 
Υޥ˥奢ڡϴǤϤʤ
ˤϡ
.B MPOL_F_NODE
ե饰ξܺ٤ˤĤƽ񤫤Ƥʤ
.B MPOL_F_NODE
ե饰
.BR get_mempolicy ()
ưѹΤǤ롣
˽񤤤ƤʤΤϰտŪʤΤǤ:
Υե饰ϥץꥱˤäƻȤȤտޤΤǤϤʤ
ͥξΥСǡΥե饰ưѹ뤫⤷ʤ
뤫⤷ʤ
.B Υե饰Ѥʤȡ
.SS Сȥ饤֥Ǥб
.BR mbind (2)
ȡ
.SH Ϣ
.BR mbind (2),
.BR set_mempolicy (2),
.BR numactl (8),
.BR numa (3)