sys/uvm/uvm_swapstub.c

   1 /*      $NetBSD: uvm_swapstub.c,v 1.5 2007/02/23 08:18:35 skrll Exp $   */
   2
   3 /*-
   4  * Copyright (c)2005 YAMAMOTO Takashi,
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 /*
  30  * dummy routines used when "options VMSWAP" is not configured.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: uvm_swapstub.c,v 1.5 2007/02/23 08:18:35 skrll Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/mount.h>
  39 #include <sys/syscallargs.h>
  40
  41 #include <uvm/uvm.h>
  42
  43 void
  44 uvm_swap_init(void)
  45 {
  46
  47         /* nothing */
  48 }
  49
  50 int
  51 sys_swapctl(struct lwp *l, const struct sys_swapctl_args *v, register_t *retval)
  52 {
  53
  54         return ENOSYS;
  55 }
  56
  57 void
  58 uvm_swap_stats(int cmd, struct swapent *sep, int sec, register_t *retval)
  59 {
  60
  61         *retval = 0;
  62 }