1 /* $NetBSD: misc.c,v 1.10 2022/07/30 13:09:19 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran.
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 /*-
33 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58 #include <sys/cdefs.h>
59 /* __FBSDID("$FreeBSD: head/sys/cddl/compat/opensolaris/kern/opensolaris_misc.c 219089 2011-02-27 19:41:40Z pjd $"); */
60
61
62 #include <sys/mount.h>
63 #include <sys/param.h>
64 #include <sys/kernel.h>
65 #include <sys/systm.h>
66 #include <sys/misc.h>
67 #include <sys/sunddi.h>
68 #include <sys/utsname.h>
69 #include <sys/vnode.h>
70 #include <sys/mount.h>
71 #include <sys/pool.h>
72 #include <sys/buf.h>
73
74 char hw_serial[11] = "0";
75
76 struct utsname utsname;
77
78 void
opensolaris_utsname_init(void * arg)79 opensolaris_utsname_init(void *arg)
80 {
81
82 strlcpy(utsname.sysname, ostype, sizeof(utsname.sysname));
83 strlcpy(utsname.nodename, hostname, sizeof(utsname.nodename));
84 strlcpy(utsname.release, osrelease, sizeof(utsname.release));
85 strlcpy(utsname.version, version, sizeof(utsname.version));
86 strlcpy(utsname.machine, machine, sizeof(utsname.machine));
87 }
88
89 int
vn_is_readonly(vnode_t * vp)90 vn_is_readonly(vnode_t *vp)
91 {
92
93 return (vp->v_mount->mnt_flag & MNT_RDONLY);
94 }
95
96 kthread_t *
solaris__thread_create(void * stk,size_t stksize,void (* proc)(),void * arg,size_t len,proc_t * pp,int state,pri_t pri,const char * name)97 solaris__thread_create(void * stk, size_t stksize, void (*proc)(), void *arg,
98 size_t len, proc_t *pp, int state, pri_t pri, const char *name)
99 {
100 int error;
101 lwp_t *thr;
102
103 //ASSERT(stk == NULL && stksize == 0 && len == 0);
104 ASSERT(stk == NULL && len == 0);
105 ASSERT(state == TS_RUN);
106
107 error = kthread_create(pri, KTHREAD_MPSAFE, NULL,
108 proc, arg, &thr, "%s", name);
109 KASSERT(error == 0);
110 return thr;
111 }
112
113 void
thread_exit(void)114 thread_exit(void)
115 {
116
117 kthread_exit(0);
118 }
119
120 void
thread_join(uint64_t kid)121 thread_join(uint64_t kid)
122 {
123
124 return;
125 }
126
127 void
kmem_reap(void)128 kmem_reap(void)
129 {
130 int bufcnt;
131 struct pool *pp;
132
133 bufcnt = uvmexp.freetarg - uvm_availmem(false);
134 if (bufcnt < 0)
135 bufcnt = 0;
136
137 /*
138 * kill unused metadata buffers.
139 */
140 mutex_enter(&bufcache_lock);
141 buf_drain(bufcnt << PAGE_SHIFT);
142 mutex_exit(&bufcache_lock);
143
144 /*
145 * drain the pools.
146 */
147 pool_drain(&pp);
148 }
149
150 /*
151 * Zero out the structure, set the size of the requested/returned bitmaps,
152 * set AT_XVATTR in the embedded vattr_t's va_mask, and set up the pointer
153 * to the returned attributes array.
154 */
155 void
xva_init(xvattr_t * xvap)156 xva_init(xvattr_t *xvap)
157 {
158 bzero(xvap, sizeof (xvattr_t));
159 xvap->xva_mapsize = XVA_MAPSIZE;
160 xvap->xva_magic = XVA_MAGIC;
161 xvap->xva_vattr.va_mask = AT_XVATTR;
162 xvap->xva_rtnattrmapp = &(xvap->xva_rtnattrmap)[0];
163 }
164
165
166 /*
167 * If AT_XVATTR is set, returns a pointer to the embedded xoptattr_t
168 * structure. Otherwise, returns NULL.
169 */
170 xoptattr_t *
xva_getxoptattr(xvattr_t * xvap)171 xva_getxoptattr(xvattr_t *xvap)
172 {
173 xoptattr_t *xoap = NULL;
174 if (xvap->xva_vattr.va_mask & AT_XVATTR)
175 xoap = &xvap->xva_xoptattrs;
176 return (xoap);
177 }
178