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Annotation of 43BSDReno/lib/libc/sys/swapon.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"    @(#)swapon.2    6.6 (Berkeley) 6/23/90
        !            19: .\"
        !            20: .TH SWAPON 2 "June 23, 1990"
        !            21: .UC 4
        !            22: .SH NAME
        !            23: swapon \- add a swap device for interleaved paging/swapping
        !            24: .SH SYNOPSIS
        !            25: .nf
        !            26: .B swapon(special)
        !            27: .B char *special;
        !            28: .fi
        !            29: .SH DESCRIPTION
        !            30: .I Swapon
        !            31: makes the block device 
        !            32: .I special 
        !            33: available to the system for
        !            34: allocation for paging and swapping.  The names of potentially
        !            35: available devices are known to the system and defined at system
        !            36: configuration time.  The size of the swap area on 
        !            37: .I special 
        !            38: is calculated at the time the device is first made available
        !            39: for swapping.
        !            40: .SH "RETURN VALUE
        !            41: If an error has occurred, a value of \-1 is returned and
        !            42: .I errno
        !            43: is set to indicate the error.
        !            44: .SH ERRORS
        !            45: .I Swapon
        !            46: succeeds unless:
        !            47: .TP 15
        !            48: [ENOTDIR]
        !            49: A component of the path prefix is not a directory.
        !            50: .TP 15
        !            51: [EINVAL]
        !            52: The pathname contains a character with the high-order bit set.
        !            53: .TP 15
        !            54: [ENAMETOOLONG]
        !            55: A component of a pathname exceeded 255 characters,
        !            56: or an entire path name exceeded 1023 characters.
        !            57: .TP 15
        !            58: [ENOENT]
        !            59: The named device does not exist.
        !            60: .TP 15
        !            61: [EACCES]
        !            62: Search permission is denied for a component of the path prefix.
        !            63: .TP 15
        !            64: [ELOOP]
        !            65: Too many symbolic links were encountered in translating the pathname.
        !            66: .TP 15
        !            67: [EPERM]
        !            68: The caller is not the super-user.
        !            69: .TP 15
        !            70: [ENOTBLK]
        !            71: .I Special
        !            72: is not a block device.
        !            73: .TP 15
        !            74: [EBUSY]
        !            75: The device specified by \fIspecial\fP has already
        !            76: been made available for swapping
        !            77: .TP 15
        !            78: [EINVAL]
        !            79: The device configured by \fIspecial\fP was not
        !            80: configured into the system as a swap device.
        !            81: .TP 15
        !            82: [ENXIO]
        !            83: The major device number of 
        !            84: .I special
        !            85: is out of range (this indicates no device driver exists
        !            86: for the associated hardware).
        !            87: .TP 15
        !            88: [EIO]
        !            89: An I/O error occurred while opening the swap device.
        !            90: .TP 15
        !            91: [EFAULT]
        !            92: .I Special
        !            93: points outside the process's allocated address space.
        !            94: .SH "SEE ALSO"
        !            95: swapon(8), config(8)
        !            96: .SH BUGS
        !            97: There is no way to stop swapping on a disk so that the pack may be
        !            98: dismounted.
        !            99: .PP
        !           100: This call will be upgraded in future versions of the system.

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