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--- old/usr/src/uts/common/syscall/sysconfig.c
+++ new/usr/src/uts/common/syscall/sysconfig.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 24 * Use is subject to license terms.
25 - * Copyright 2012 Joyent, Inc. All rights reserved.
25 + * Copyright 2011 Joyent, Inc. All rights reserved.
26 26 */
27 27
28 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
29 29 /* All Rights Reserved */
30 30
31 31 #include <sys/param.h>
32 32 #include <sys/types.h>
33 33 #include <sys/sysmacros.h>
34 34 #include <sys/systm.h>
35 35 #include <sys/tuneable.h>
36 36 #include <sys/errno.h>
37 37 #include <sys/var.h>
38 38 #include <sys/signal.h>
39 39 #include <sys/time.h>
40 40 #include <sys/sysconfig.h>
41 41 #include <sys/resource.h>
42 42 #include <sys/ulimit.h>
43 43 #include <sys/unistd.h>
44 44 #include <sys/debug.h>
45 45 #include <sys/cpuvar.h>
46 46 #include <sys/mman.h>
47 47 #include <sys/timer.h>
48 48 #include <sys/zone.h>
49 49 #include <sys/vm_usage.h>
50 50
51 51 extern rctl_hndl_t rc_process_sigqueue;
52 52
53 53 long
54 54 sysconfig(int which)
55 55 {
56 56 switch (which) {
57 57
58 58 /*
59 59 * if it is not handled in mach_sysconfig either
60 60 * it must be EINVAL.
61 61 */
62 62 default:
63 63 return (mach_sysconfig(which)); /* `uname -i`/os */
64 64
65 65 case _CONFIG_CLK_TCK:
66 66 return ((long)hz); /* clock frequency per second */
67 67
68 68 case _CONFIG_PROF_TCK:
69 69 return ((long)hz); /* profiling clock freq per sec */
70 70
71 71 case _CONFIG_NGROUPS:
72 72 /*
73 73 * Maximum number of supplementary groups.
74 74 */
75 75 return (ngroups_max);
76 76
77 77 case _CONFIG_OPEN_FILES:
78 78 /*
79 79 * Maximum number of open files (soft limit).
80 80 */
81 81 {
82 82 rlim64_t fd_ctl;
83 83 mutex_enter(&curproc->p_lock);
84 84 fd_ctl = rctl_enforced_value(
85 85 rctlproc_legacy[RLIMIT_NOFILE], curproc->p_rctls,
86 86 curproc);
87 87 mutex_exit(&curproc->p_lock);
88 88 return ((ulong_t)fd_ctl);
89 89 }
90 90
91 91 case _CONFIG_CHILD_MAX:
92 92 /*
93 93 * Maximum number of processes.
94 94 */
95 95 return (v.v_maxup);
96 96
97 97 case _CONFIG_POSIX_VER:
98 98 return (_POSIX_VERSION); /* current POSIX version */
99 99
100 100 case _CONFIG_PAGESIZE:
101 101 return (PAGESIZE);
102 102
103 103 case _CONFIG_XOPEN_VER:
104 104 return (_XOPEN_VERSION); /* current XOPEN version */
105 105
106 106 case _CONFIG_NPROC_CONF:
107 107 return (zone_ncpus_get(curproc->p_zone));
108 108
109 109 case _CONFIG_NPROC_ONLN:
110 110 return (zone_ncpus_online_get(curproc->p_zone));
111 111
112 112 case _CONFIG_NPROC_MAX:
113 113 return (max_ncpus);
114 114
115 115 case _CONFIG_STACK_PROT:
116 116 return (curproc->p_stkprot & ~PROT_USER);
117 117
118 118 case _CONFIG_AIO_LISTIO_MAX:
119 119 return (_AIO_LISTIO_MAX);
120 120
121 121 case _CONFIG_AIO_MAX:
122 122 return (_AIO_MAX);
123 123
124 124 case _CONFIG_AIO_PRIO_DELTA_MAX:
125 125 return (0);
126 126
127 127 case _CONFIG_DELAYTIMER_MAX:
128 128 return (INT_MAX);
129 129
130 130 case _CONFIG_MQ_OPEN_MAX:
131 131 return (_MQ_OPEN_MAX);
132 132
133 133 case _CONFIG_MQ_PRIO_MAX:
134 134 return (_MQ_PRIO_MAX);
135 135
136 136 case _CONFIG_RTSIG_MAX:
137 137 return (_SIGRTMAX - _SIGRTMIN + 1);
138 138
139 139 case _CONFIG_SEM_NSEMS_MAX:
140 140 return (_SEM_NSEMS_MAX);
141 141
142 142 case _CONFIG_SEM_VALUE_MAX:
143 143 return (_SEM_VALUE_MAX);
144 144
145 145 case _CONFIG_SIGQUEUE_MAX:
146 146 /*
147 147 * Maximum number of outstanding queued signals.
148 148 */
149 149 {
150 150 rlim64_t sigqsz_max;
151 151 mutex_enter(&curproc->p_lock);
152 152 sigqsz_max = rctl_enforced_value(rc_process_sigqueue,
153 153 curproc->p_rctls, curproc);
154 154 mutex_exit(&curproc->p_lock);
155 155 return ((uint_t)sigqsz_max);
156 156 }
157 157
158 158 case _CONFIG_SIGRT_MIN:
159 159 return (_SIGRTMIN);
160 160
161 161 case _CONFIG_SIGRT_MAX:
162 162 return (_SIGRTMAX);
163 163
164 164 case _CONFIG_TIMER_MAX:
165 165 return (timer_max);
166 166
167 167 case _CONFIG_PHYS_PAGES:
168 168 /*
169 169 * If the non-global zone has a phys. memory cap, use that.
170 170 * We always report the system-wide value for the global zone,
171 171 * even though rcapd can be used on the global zone too.
172 172 */
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173 173 if (!INGLOBALZONE(curproc) &&
174 174 curproc->p_zone->zone_phys_mem_ctl != UINT64_MAX)
175 175 return (MIN(btop(curproc->p_zone->zone_phys_mem_ctl),
176 176 physinstalled));
177 177
178 178 return (physinstalled);
179 179
180 180 case _CONFIG_AVPHYS_PAGES:
181 181 /*
182 182 * If the non-global zone has a phys. memory cap, use
183 - * the phys. memory cap - zone's rss. We always
183 + * the phys. memory cap - zone's current rss. We always
184 184 * report the system-wide value for the global zone, even
185 - * though memory capping can be used on the global zone too.
186 - * We use the cached value for the RSS since vm_getusage()
187 - * is so expensive and we don't need this value to be exact.
185 + * though rcapd can be used on the global zone too.
188 186 */
189 187 if (!INGLOBALZONE(curproc) &&
190 188 curproc->p_zone->zone_phys_mem_ctl != UINT64_MAX) {
191 189 pgcnt_t cap, rss, free;
190 + vmusage_t in_use;
191 + size_t cnt = 1;
192 192
193 193 cap = btop(curproc->p_zone->zone_phys_mem_ctl);
194 194 if (cap > physinstalled)
195 195 return (freemem);
196 196
197 - rss = btop(curproc->p_zone->zone_phys_mem);
197 + if (vm_getusage(VMUSAGE_ZONE, 1, &in_use, &cnt,
198 + FKIOCTL) != 0)
199 + in_use.vmu_rss_all = 0;
200 + rss = btop(in_use.vmu_rss_all);
198 201 /*
199 - * Because this is a soft cap, it is possible
202 + * Because rcapd implements a soft cap, it is possible
200 203 * for rss to be temporarily over the cap.
201 204 */
202 205 if (cap > rss)
203 206 free = cap - rss;
204 207 else
205 208 free = 0;
206 209 return (MIN(free, freemem));
207 210 }
208 211
209 212 return (freemem);
210 213
211 214 case _CONFIG_MAXPID:
212 215 return (maxpid);
213 216
214 217 case _CONFIG_CPUID_MAX:
215 218 return (max_cpuid);
216 219
217 220 case _CONFIG_EPHID_MAX:
218 221 return (MAXEPHUID);
219 222
220 223 case _CONFIG_SYMLOOP_MAX:
221 224 return (MAXSYMLINKS);
222 225 }
223 226 }
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