1 /* $NetBSD: uvm_13.c,v 1.3 2020/09/05 16:30:10 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2018 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: uvm_13.c,v 1.3 2020/09/05 16:30:10 riastradh Exp $");
34
35 #if defined(_KERNEL_OPT)
36 #include "opt_compat_netbsd.h"
37 #endif
38
39 #if defined(_KERNEL) || defined(_MODULE)
40 #if defined(_KERNEL_OPT)
41 #include "opt_vmswap.h"
42 #else
43 #define VMSWAP /* XXX */
44 #endif
45 #endif
46
47 #include <sys/param.h>
48 #include <sys/types.h>
49 #include <sys/systm.h>
50 #include <sys/syscallargs.h>
51 #include <sys/swap.h>
52
53 #include <uvm/uvm_swap.h>
54
55 #include <compat/sys/uvm.h>
56
57 static void
swapent13_cvt(void * p,const struct swapent * se)58 swapent13_cvt(void *p, const struct swapent *se)
59 {
60 struct swapent13 *sep13 = p;
61
62 sep13->se13_dev = se->se_dev;
63 sep13->se13_flags = se->se_flags;
64 sep13->se13_nblks = se->se_nblks;
65 sep13->se13_inuse = se->se_inuse;
66 sep13->se13_priority = se->se_priority;
67 }
68
69
70 static int
compat_uvm_swap_stats13(const struct sys_swapctl_args * uap,register_t * retval)71 compat_uvm_swap_stats13(const struct sys_swapctl_args *uap, register_t *retval)
72 {
73 return uvm_swap_stats(SCARG(uap, arg), SCARG(uap, misc),
74 swapent13_cvt, sizeof(struct swapent13), retval);
75
76 }
77
78 void
uvm_13_init(void)79 uvm_13_init(void)
80 {
81 uvm_swap_stats13 = compat_uvm_swap_stats13;
82 }
83
84 void
uvm_13_fini(void)85 uvm_13_fini(void)
86 {
87 uvm_swap_stats13 = (void *)enosys;
88 }
89