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Annotation of 43BSDReno/lib/libc/sys/swapon.2, revision 1.1.1.1

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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