1/* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38static char copyright[] = 39"@(#) Copyright (c) 1989, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41#endif not lint 42 43#ifndef lint 44static char sccsid[] = "@(#)nfsiod.c 8.3 (Berkeley) 2/22/94"; 45#endif not lint 46 47#include <sys/param.h> 48#include <sys/ioctl.h> 49#include <sys/syslog.h> 50#include <sys/ucred.h> 51#include <sys/wait.h>
| 1/* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38static char copyright[] = 39"@(#) Copyright (c) 1989, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41#endif not lint 42 43#ifndef lint 44static char sccsid[] = "@(#)nfsiod.c 8.3 (Berkeley) 2/22/94"; 45#endif not lint 46 47#include <sys/param.h> 48#include <sys/ioctl.h> 49#include <sys/syslog.h> 50#include <sys/ucred.h> 51#include <sys/wait.h>
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| 52#include <sys/mount.h>
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52 53#include <nfs/nfsv2.h> 54#include <nfs/nfs.h> 55 56#include <err.h> 57#include <errno.h> 58#include <fcntl.h> 59#include <signal.h> 60#include <stdio.h> 61#include <stdlib.h> 62#include <unistd.h> 63 64/* Global defs */ 65#ifdef DEBUG 66int debug = 1; 67#else 68int debug = 0; 69#endif 70 71void nonfs __P((int)); 72void reapchild __P((int)); 73void usage __P((void)); 74 75/* 76 * Nfsiod does asynchronous buffered I/O on behalf of the NFS client. 77 * It does not have to be running for correct operation, but will 78 * improve throughput. 79 */ 80int 81main(argc, argv) 82 int argc; 83 char *argv[]; 84{ 85 int ch, num_servers;
| 53 54#include <nfs/nfsv2.h> 55#include <nfs/nfs.h> 56 57#include <err.h> 58#include <errno.h> 59#include <fcntl.h> 60#include <signal.h> 61#include <stdio.h> 62#include <stdlib.h> 63#include <unistd.h> 64 65/* Global defs */ 66#ifdef DEBUG 67int debug = 1; 68#else 69int debug = 0; 70#endif 71 72void nonfs __P((int)); 73void reapchild __P((int)); 74void usage __P((void)); 75 76/* 77 * Nfsiod does asynchronous buffered I/O on behalf of the NFS client. 78 * It does not have to be running for correct operation, but will 79 * improve throughput. 80 */ 81int 82main(argc, argv) 83 int argc; 84 char *argv[]; 85{ 86 int ch, num_servers;
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| 87 struct vfsconf *vfc;
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86
| 88
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| 89 vfc = getvfsbyname("nfs"); 90 if(!vfc && vfsisloadable("nfs")) { 91 if(vfsload("nfs")) 92 err(1, "vfsload(nfs)"); 93 endvfsent(); /* flush cache */ 94 vfc = getvfsbyname("nfs"); 95 } 96 97 if(!vfc) { 98 errx(1, "NFS support is not available in the running kernel"); 99 } 100
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87#define MAXNFSDCNT 20 88#define DEFNFSDCNT 1 89 num_servers = DEFNFSDCNT; 90 while ((ch = getopt(argc, argv, "n:")) != EOF) 91 switch (ch) { 92 case 'n': 93 num_servers = atoi(optarg); 94 if (num_servers < 1 || num_servers > MAXNFSDCNT) { 95 warnx("nfsiod count %d; reset to %d", 96 DEFNFSDCNT); 97 num_servers = DEFNFSDCNT; 98 } 99 break; 100 case '?': 101 default: 102 usage(); 103 } 104 argc -= optind; 105 argv += optind; 106 107 /* 108 * XXX 109 * Backward compatibility, trailing number is the count of daemons. 110 */ 111 if (argc > 1) 112 usage(); 113 if (argc == 1) { 114 num_servers = atoi(argv[0]); 115 if (num_servers < 1 || num_servers > MAXNFSDCNT) { 116 warnx("nfsiod count %d; reset to %d", DEFNFSDCNT); 117 num_servers = DEFNFSDCNT; 118 } 119 } 120 121 if (debug == 0) { 122 daemon(0, 0); 123 (void)signal(SIGHUP, SIG_IGN); 124 (void)signal(SIGINT, SIG_IGN); 125 (void)signal(SIGQUIT, SIG_IGN); 126 (void)signal(SIGSYS, nonfs); 127 } 128 (void)signal(SIGCHLD, reapchild); 129 130 openlog("nfsiod:", LOG_PID, LOG_DAEMON); 131 132 while (num_servers--) 133 switch (fork()) { 134 case -1: 135 syslog(LOG_ERR, "fork: %m"); 136 exit (1); 137 case 0: 138 if (nfssvc(NFSSVC_BIOD, NULL) < 0) { 139 syslog(LOG_ERR, "nfssvc: %m"); 140 exit (1); 141 } 142 exit(0); 143 } 144 exit (0); 145} 146 147void 148nonfs(signo) 149 int signo; 150{ 151 syslog(LOG_ERR, "missing system call: NFS not available."); 152} 153 154void 155reapchild(signo) 156 int signo; 157{ 158 159 while (wait3(NULL, WNOHANG, NULL)); 160} 161 162void 163usage() 164{ 165 (void)fprintf(stderr, "usage: nfsiod [-n num_servers]\n"); 166 exit(1); 167}
| 101#define MAXNFSDCNT 20 102#define DEFNFSDCNT 1 103 num_servers = DEFNFSDCNT; 104 while ((ch = getopt(argc, argv, "n:")) != EOF) 105 switch (ch) { 106 case 'n': 107 num_servers = atoi(optarg); 108 if (num_servers < 1 || num_servers > MAXNFSDCNT) { 109 warnx("nfsiod count %d; reset to %d", 110 DEFNFSDCNT); 111 num_servers = DEFNFSDCNT; 112 } 113 break; 114 case '?': 115 default: 116 usage(); 117 } 118 argc -= optind; 119 argv += optind; 120 121 /* 122 * XXX 123 * Backward compatibility, trailing number is the count of daemons. 124 */ 125 if (argc > 1) 126 usage(); 127 if (argc == 1) { 128 num_servers = atoi(argv[0]); 129 if (num_servers < 1 || num_servers > MAXNFSDCNT) { 130 warnx("nfsiod count %d; reset to %d", DEFNFSDCNT); 131 num_servers = DEFNFSDCNT; 132 } 133 } 134 135 if (debug == 0) { 136 daemon(0, 0); 137 (void)signal(SIGHUP, SIG_IGN); 138 (void)signal(SIGINT, SIG_IGN); 139 (void)signal(SIGQUIT, SIG_IGN); 140 (void)signal(SIGSYS, nonfs); 141 } 142 (void)signal(SIGCHLD, reapchild); 143 144 openlog("nfsiod:", LOG_PID, LOG_DAEMON); 145 146 while (num_servers--) 147 switch (fork()) { 148 case -1: 149 syslog(LOG_ERR, "fork: %m"); 150 exit (1); 151 case 0: 152 if (nfssvc(NFSSVC_BIOD, NULL) < 0) { 153 syslog(LOG_ERR, "nfssvc: %m"); 154 exit (1); 155 } 156 exit(0); 157 } 158 exit (0); 159} 160 161void 162nonfs(signo) 163 int signo; 164{ 165 syslog(LOG_ERR, "missing system call: NFS not available."); 166} 167 168void 169reapchild(signo) 170 int signo; 171{ 172 173 while (wait3(NULL, WNOHANG, NULL)); 174} 175 176void 177usage() 178{ 179 (void)fprintf(stderr, "usage: nfsiod [-n num_servers]\n"); 180 exit(1); 181}
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