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Annotation of Net2/nfs/swapnfs.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1991 The Regents of the University of California.
        !             3:  * 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:  *     from: @(#)nfsswapvmunix.c       7.1 (Berkeley) 3/4/91
        !            37:  *     swapnfs.c,v 1.1 1993/07/07 12:06:40 cgd Exp
        !            38:  */
        !            39: 
        !            40: /*
        !            41:  * Sample NFS swapvmunix configuration file.
        !            42:  * This should be filled in by the bootstrap program.
        !            43:  * See /sys/nfs/nfsdiskless.h for details of the fields.
        !            44:  */
        !            45: 
        !            46: #include "../sys/param.h"
        !            47: #include "../sys/conf.h"
        !            48: #include "../sys/socket.h"
        !            49: #include "../sys/mount.h"
        !            50: #include "../net/if.h"
        !            51: #include "../nfs/nfsv2.h"
        !            52: #include "../nfs/nfsdiskless.h"
        !            53: 
        !            54: dev_t  rootdev = NODEV;
        !            55: dev_t  argdev  = NODEV;
        !            56: dev_t  dumpdev = NODEV;
        !            57: 
        !            58: struct swdevt swdevt[] = {
        !            59:        { NODEV, 0, 0 },
        !            60:        { 0, 0, 0 }
        !            61: };
        !            62: 
        !            63: extern int nfs_mountroot();
        !            64: int (*mountroot)() = nfs_mountroot;
        !            65: 
        !            66: /* We start with transfer sizes of 4K during boot                      */
        !            67: /* as the WD8003 has problems to support 8K of back to back packets    */
        !            68: struct nfs_diskless nfs_diskless = {
        !            69:        { 0 },          /* myif */
        !            70:        { 0 },          /* mygateway */
        !            71:        {               /* swap_args */
        !            72:            0,          /* addr */
        !            73:            0,          /* sotype */
        !            74:            0,          /* proto */
        !            75:            0,          /* fh */
        !            76:            NFSMNT_WSIZE|NFSMNT_RSIZE,  /* flags */
        !            77:            4096,       /* wsize */
        !            78:            4096,       /* rsize */
        !            79:            0,          /* timeo */
        !            80:            0,          /* retrans */
        !            81:            0           /* hostname */
        !            82:        },
        !            83:        { 0 },          /* swap_fh */
        !            84:        { 0 },          /* swap_saddr */
        !            85:        { 0 },          /* swap_hostnam */
        !            86:        {               /* root_args */
        !            87:            0,          /* addr */
        !            88:            0,          /* sotype */
        !            89:            0,          /* proto */
        !            90:            0,          /* fh */
        !            91:            NFSMNT_WSIZE|NFSMNT_RSIZE,  /* flags */
        !            92:            4096,       /* wsize */
        !            93:            4096,       /* rsize */
        !            94:            0,          /* timeo */
        !            95:            0,          /* retrans */
        !            96:            0           /* hostname */
        !            97:        },
        !            98:        { 0 },          /* root_fh */
        !            99:        { 0 },          /* root_saddr */
        !           100:        { 0 }           /* root_hostnam */
        !           101: };

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