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Annotation of 43BSDTahoe/man/man2/swapon.2, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)swapon.2    6.4 (Berkeley) 3/9/86
        !             6: .\"
        !             7: .TH SWAPON 2 "March 9, 1986"
        !             8: .UC 4
        !             9: .SH NAME
        !            10: swapon \- add a swap device for interleaved paging/swapping
        !            11: .SH SYNOPSIS
        !            12: .nf
        !            13: .B swapon(special)
        !            14: .B char *special;
        !            15: .fi
        !            16: .SH DESCRIPTION
        !            17: .I Swapon
        !            18: makes the block device 
        !            19: .I special 
        !            20: available to the system for
        !            21: allocation for paging and swapping.  The names of potentially
        !            22: available devices are known to the system and defined at system
        !            23: configuration time.  The size of the swap area on 
        !            24: .I special 
        !            25: is calculated at the time the device is first made available
        !            26: for swapping.
        !            27: .SH "RETURN VALUE
        !            28: If an error has occurred, a value of \-1 is returned and
        !            29: .I errno
        !            30: is set to indicate the error.
        !            31: .SH ERRORS
        !            32: .I Swapon
        !            33: succeeds unless:
        !            34: .TP 15
        !            35: [ENOTDIR]
        !            36: A component of the path prefix is not a directory.
        !            37: .TP 15
        !            38: [EINVAL]
        !            39: The pathname contains a character with the high-order bit set.
        !            40: .TP 15
        !            41: [ENAMETOOLONG]
        !            42: A component of a pathname exceeded 255 characters,
        !            43: or an entire path name exceeded 1023 characters.
        !            44: .TP 15
        !            45: [ENOENT]
        !            46: The named device does not exist.
        !            47: .TP 15
        !            48: [EACCES]
        !            49: Search permission is denied for a component of the path prefix.
        !            50: .TP 15
        !            51: [ELOOP]
        !            52: Too many symbolic links were encountered in translating the pathname.
        !            53: .TP 15
        !            54: [EPERM]
        !            55: The caller is not the super-user.
        !            56: .TP 15
        !            57: [ENOTBLK]
        !            58: .I Special
        !            59: is not a block device.
        !            60: .TP 15
        !            61: [EBUSY]
        !            62: The device specified by \fIspecial\fP has already
        !            63: been made available for swapping
        !            64: .TP 15
        !            65: [EINVAL]
        !            66: The device configured by \fIspecial\fP was not
        !            67: configured into the system as a swap device.
        !            68: .TP 15
        !            69: [ENXIO]
        !            70: The major device number of 
        !            71: .I special
        !            72: is out of range (this indicates no device driver exists
        !            73: for the associated hardware).
        !            74: .TP 15
        !            75: [EIO]
        !            76: An I/O error occurred while opening the swap device.
        !            77: .TP 15
        !            78: [EFAULT]
        !            79: .I Special
        !            80: points outside the process's allocated address space.
        !            81: .SH "SEE ALSO"
        !            82: swapon(8), config(8)
        !            83: .SH BUGS
        !            84: There is no way to stop swapping on a disk so that the pack may be
        !            85: dismounted.
        !            86: .PP
        !            87: This call will be upgraded in future versions of the system.

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