mirror of https://gitee.com/openkylin/numactl.git
106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
/*
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* Copyright (C) 2005 Christoph Lameter, Silicon Graphics, Incorporated.
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* based on Andi Kleen's numactl.c.
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*
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* Manual process migration
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*
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* migratepages is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; version 2.
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*
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* migratepages is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should find a copy of v2 of the GNU General Public License somewhere
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* on your Linux system; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define _GNU_SOURCE
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#include <getopt.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include "numa.h"
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#include "numaif.h"
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#include "numaint.h"
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#include "util.h"
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struct option opts[] = {
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{"help", 0, 0, 'h' },
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{ 0 }
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};
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void usage(void)
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{
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fprintf(stderr,
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"usage: migratepages pid from-nodes to-nodes\n"
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"\n"
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"nodes is a comma delimited list of node numbers or A-B ranges or all.\n"
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);
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exit(1);
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}
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void checknuma(void)
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{
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static int numa = -1;
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if (numa < 0) {
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if (numa_available() < 0)
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complain("This system does not support NUMA functionality");
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}
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numa = 0;
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}
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int main(int argc, char *argv[])
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{
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int c;
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char *end;
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int rc;
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int pid;
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struct bitmask *fromnodes;
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struct bitmask *tonodes;
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while ((c = getopt_long(argc,argv,"h", opts, NULL)) != -1) {
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switch (c) {
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default:
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usage();
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}
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}
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argv += optind;
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argc -= optind;
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if (argc != 3)
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usage();
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checknuma();
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pid = strtoul(argv[0], &end, 0);
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if (*end || end == argv[0])
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usage();
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fromnodes = numa_parse_nodestring(argv[1]);
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if (!fromnodes) {
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printf ("<%s> is invalid\n", argv[1]);
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exit(1);
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}
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tonodes = numa_parse_nodestring(argv[2]);
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if (!tonodes) {
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printf ("<%s> is invalid\n", argv[2]);
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exit(1);
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}
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rc = numa_migrate_pages(pid, fromnodes, tonodes);
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if (rc < 0) {
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perror("migrate_pages");
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return 1;
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}
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return 0;
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}
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