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1c79356b 1/*
39236c6e 2 * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
5d5c5d0d 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
2d21ac55
A		 6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
8f6c56a5 14 *
2d21ac55
A		 15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5
A		 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55
A		 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b
A		 27 */
28/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
29/*
30 * Copyright (c) 1987, 1991, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by the University of
44 * California, Berkeley and its contributors.
45 * 4. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)kern_malloc.c 8.4 (Berkeley) 5/20/95
62 */
2d21ac55
A		 63/*
64 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
65 * support for mandatory and extensible security protections. This notice
66 * is included in support of clause 2.2 (b) of the Apple Public License,
67 * Version 2.0.
68 */
1c79356b
A		 69
70#include <sys/param.h>
71#include <sys/malloc.h>
72
73#include <sys/socket.h>
74#include <sys/socketvar.h>
75
76#include <net/route.h>
fe8ab488 77#include <net/necp.h>
1c79356b
A		 78
79#include <netinet/in.h>
80#include <netinet/in_systm.h>
81#include <netinet/ip.h>
82#include <netinet/in_pcb.h>
39236c6e 83#include <netinet/flow_divert.h>
1c79356b 84
55e303ae
A		 85#include <sys/event.h>
86#include <sys/eventvar.h>
87
91447636
A		 88#include <sys/proc_internal.h>
89#include <sys/mount_internal.h>
90#include <sys/vnode_internal.h>
91#include <sys/ubc_internal.h>
1c79356b 92#include <sys/namei.h>
91447636 93#include <sys/file_internal.h>
1c79356b
A		 94#include <sys/filedesc.h>
95#include <sys/tty.h>
9bccf70c 96#include <sys/quota.h>
91447636 97#include <sys/uio_internal.h>
0c530ab8 98#include <sys/resourcevar.h>
2d21ac55 99#include <sys/signalvar.h>
39037602 100#include <sys/decmpfs.h>
1c79356b 101
55e303ae 102#include <miscfs/specfs/specdev.h>
1c79356b
A		 103
104#include <nfs/rpcv2.h>
105#include <nfs/nfsproto.h>
106#include <nfs/nfsnode.h>
107#include <nfs/nfsmount.h>
1c79356b
A		 108
109#include <mach/mach_types.h>
110
111#include <kern/zalloc.h>
112#include <kern/kalloc.h>
113
39236c6e 114void kmeminit(void);
1c79356b 115
2d21ac55
A		 116/* Strings corresponding to types of memory.
117 * Must be in synch with the #defines is sys/malloc.h
118 * NOTE - the reason we pass null strings in some cases is to reduce of foot
119 * print as much as possible for systems where a tiny kernel is needed.
39037602 120 * todo - We should probably redesign this and use enums for our types and only
2d21ac55
A		 121 * include types needed for that configuration of the kernel. This can't be
122 * done without some kind of kpi since several types are hardwired and exported
39037602 123 * (for example see types M_UDFMNT, M_TEMP, etc in sys/malloc.h)
2d21ac55
A		 124 */
125const char *memname[] = {
126 "free", /* 0 M_FREE */
127 "mbuf", /* 1 M_MBUF */
128 "devbuf", /* 2 M_DEVBUF */
129 "socket", /* 3 M_SOCKET */
130 "pcb", /* 4 M_PCB */
131 "routetbl", /* 5 M_RTABLE */
132 "hosttbl", /* 6 M_HTABLE */
133 "fragtbl", /* 7 M_FTABLE */
134 "zombie", /* 8 M_ZOMBIE */
135 "ifaddr", /* 9 M_IFADDR */
136 "soopts", /* 10 M_SOOPTS */
137 "soname", /* 11 M_SONAME */
138 "namei", /* 12 M_NAMEI */
139 "gprof", /* 13 M_GPROF */
140 "ioctlops", /* 14 M_IOCTLOPS */
141 "mapmem", /* 15 M_MAPMEM */
142 "cred", /* 16 M_CRED */
143 "pgrp", /* 17 M_PGRP */
144 "session", /* 18 M_SESSION */
145 "iov32", /* 19 M_IOV32 */
146 "mount", /* 20 M_MOUNT */
147 "fhandle", /* 21 M_FHANDLE */
148#if (NFSCLIENT || NFSSERVER)
149 "NFS req", /* 22 M_NFSREQ */
150 "NFS mount", /* 23 M_NFSMNT */
151 "NFS node", /* 24 M_NFSNODE */
152#else
153 "", /* 22 M_NFSREQ */
154 "", /* 23 M_NFSMNT */
155 "", /* 24 M_NFSNODE */
156#endif
157 "vnodes", /* 25 M_VNODE */
158 "namecache", /* 26 M_CACHE */
159#if QUOTA
160 "UFS quota", /* 27 M_DQUOT */
161#else
162 "", /* 27 M_DQUOT */
163#endif
39236c6e 164 "proc uuid policy", /* 28 M_PROC_UUID_POLICY */
2d21ac55
A		 165#if (SYSV_SEM || SYSV_MSG || SYSV_SHM)
166 "shm", /* 29 M_SHM */
167#else
168 "", /* 29 M_SHM */
169#endif
170 "plimit", /* 30 M_VMMAP */
171 "sigacts", /* 31 M_VMMAPENT */
172 "VM object", /* 32 M_VMOBJ */
173 "VM objhash", /* 33 M_VMOBJHASH */
174 "VM pmap", /* 34 M_VMPMAP */
175 "VM pvmap", /* 35 M_VMPVENT */
176 "VM pager", /* 36 M_VMPAGER */
177 "VM pgdata", /* 37 M_VMPGDATA */
178 "fileproc", /* 38 M_FILEPROC */
179 "file desc", /* 39 M_FILEDESC */
180 "lockf", /* 40 M_LOCKF */
181 "proc", /* 41 M_PROC */
182 "pstats", /* 42 M_SUBPROC */
183 "LFS segment", /* 43 M_SEGMENT */
184 "LFS node", /* 44 M_LFSNODE */
2d21ac55 185 "", /* 45 M_FFSNODE */
2d21ac55
A		 186 "MFS node", /* 46 M_MFSNODE */
187 "NQNFS Lease", /* 47 M_NQLEASE */
188 "NQNFS Host", /* 48 M_NQMHOST */
189 "Export Host", /* 49 M_NETADDR */
190#if (NFSCLIENT || NFSSERVER)
191 "NFS srvsock", /* 50 M_NFSSVC */
192 "NFS uid", /* 51 M_NFSUID */
193 "NFS daemon", /* 52 M_NFSD */
194#else
195 "", /* 50 M_NFSSVC */
196 "", /* 51 M_NFSUID */
197 "", /* 52 M_NFSD */
198#endif
199 "ip_moptions", /* 53 M_IPMOPTS */
200 "in_multi", /* 54 M_IPMADDR */
201 "ether_multi", /* 55 M_IFMADDR */
202 "mrt", /* 56 M_MRTABLE */
b0d623f7
A		 203 "", /* 57 unused entry */
204 "", /* 58 unused entry */
2d21ac55
A		 205#if (NFSCLIENT || NFSSERVER)
206 "NFSV3 srvdesc",/* 59 M_NFSRVDESC */
207 "NFSV3 diroff", /* 60 M_NFSDIROFF */
208 "NFSV3 bigfh", /* 61 M_NFSBIGFH */
209#else
210 "", /* 59 M_NFSRVDESC */
211 "", /* 60 M_NFSDIROFF */
212 "", /* 61 M_NFSBIGFH */
213#endif
214 "MSDOSFS mount",/* 62 M_MSDOSFSMNT */
215 "MSDOSFS fat", /* 63 M_MSDOSFSFAT */
216 "MSDOSFS node", /* 64 M_MSDOSFSNODE */
217 "ttys", /* 65 M_TTYS */
218 "exec", /* 66 M_EXEC */
219 "miscfs mount", /* 67 M_MISCFSMNT */
220 "miscfs node", /* 68 M_MISCFSNODE */
221 "adosfs mount", /* 69 M_ADOSFSMNT */
222 "adosfs node", /* 70 M_ADOSFSNODE */
223 "adosfs anode", /* 71 M_ANODE */
224 "buf hdrs", /* 72 M_BUFHDR */
225 "ofile tabl", /* 73 M_OFILETABL */
226 "mbuf clust", /* 74 M_MCLUST */
39037602
A		 227 "", /* 75 unused */
228 "", /* 76 unused */
229 "", /* 77 unused */
230 "", /* 78 unused */
231 "", /* 79 unused */
2d21ac55
A		 232 "temp", /* 80 M_TEMP */
233 "key mgmt", /* 81 M_SECA */
234 "DEVFS", /* 82 M_DEVFS */
235 "IpFw/IpAcct", /* 83 M_IPFW */
236 "UDF node", /* 84 M_UDFNODE */
237 "UDF mount", /* 85 M_UDFMNT */
238#if INET6
239 "IPv6 NDP", /* 86 M_IP6NDP */
240 "IPv6 options", /* 87 M_IP6OPT */
241 "IPv6 Misc", /* 88 M_IP6MISC */
242#else
243 "", /* 86 M_IP6NDP */
244 "", /* 87 M_IP6OPT */
245 "", /* 88 M_IP6MISC */
246#endif
247 "TCP Segment Q",/* 89 M_TSEGQ */
248 "IGMP state", /* 90 M_IGMP */
39037602
A		 249 "", /* 91 unused */
250 "", /* 92 unused */
2d21ac55
A		 251 "specinfo", /* 93 M_SPECINFO */
252 "kqueue", /* 94 M_KQUEUE */
39037602
A		 253 "", /* 95 unused */
254 "cluster_read", /* 96 M_CLRDAHEAD */
2d21ac55
A		 255 "cluster_write",/* 97 M_CLWRBEHIND */
256 "iov64", /* 98 M_IOV64 */
257 "fileglob", /* 99 M_FILEGLOB */
258 "kauth", /* 100 M_KAUTH */
259 "dummynet", /* 101 M_DUMMYNET */
b0d623f7 260 "", /* 102 M_UNSAFEFS */
2d21ac55
A		 261 "macpipelabel", /* 103 M_MACPIPELABEL */
262 "mactemp", /* 104 M_MACTEMP */
263 "sbuf", /* 105 M_SBUF */
264 "extattr", /* 106 M_EXTATTR */
3e170ce0 265 "select", /* 107 M_SELECT */
2d21ac55
A		 266#if TRAFFIC_MGT
267 "traffic_mgt", /* 108 M_TRAFFIC_MGT */
268#else
269 "", /* 108 M_TRAFFIC_MGT */
270#endif
39037602 271#if FS_COMPRESSION
b0d623f7
A		 272 "decmpfs_cnode",/* 109 M_DECMPFS_CNODE */
273#else
274 "", /* 109 M_DECMPFS_CNODE */
39037602 275#endif /* FS_COMPRESSION */
6d2010ae
A		 276 "ipmfilter", /* 110 M_INMFILTER */
277 "ipmsource", /* 111 M_IPMSOURCE */
278 "in6mfilter", /* 112 M_IN6MFILTER */
279 "ip6mopts", /* 113 M_IP6MOPTS */
280 "ip6msource", /* 114 M_IP6MSOURCE */
39236c6e
A		 281#if FLOW_DIVERT
282 "flow_divert_pcb", /* 115 M_FLOW_DIVERT_PCB */
283 "flow_divert_group", /* 116 M_FLOW_DIVERT_GROUP */
284#else
285 "", /* 115 M_FLOW_DIVERT_PCB */
286 "", /* 116 M_FLOW_DIVERT_GROUP */
287#endif
288 "ip6cga", /* 117 M_IP6CGA */
fe8ab488
A		 289#if NECP
290 "necp", /* 118 M_NECP */
291 "necp_session_policy", /* 119 M_NECP_SESSION_POLICY */
292 "necp_socket_policy", /* 120 M_NECP_SOCKET_POLICY */
293 "necp_ip_policy", /* 121 M_NECP_IP_POLICY */
294#else
295 "", /* 118 M_NECP */
296 "", /* 119 M_NECP_SESSION_POLICY */
297 "", /* 120 M_NECP_SOCKET_POLICY */
298 "", /* 121 M_NECP_IP_POLICY */
299#endif
300 "fdvnodedata" /* 122 M_FD_VN_DATA */
301 "fddirbuf", /* 123 M_FD_DIRBUF */
3e170ce0 302 "netagent", /* 124 M_NETAGENT */
5ba3f43e
A		 303 "Event Handler",/* 125 M_EVENTHANDLER */
304 "Link Layer Table", /* 126 M_LLTABLE */
305 "Network Work Queue", /* 127 M_NWKWQ */
fe8ab488 306 ""
2d21ac55
A		 307};
308
309/* for use with kmzones.kz_zalloczone */
6d2010ae 310#define KMZ_CREATEZONE_ACCT ((void *)-3)
1c79356b
A		 311#define KMZ_CREATEZONE ((void *)-2)
312#define KMZ_LOOKUPZONE ((void *)-1)
2d21ac55 313#define KMZ_MALLOC ((void *)0)
1c79356b 314#define KMZ_SHAREZONE ((void *)1)
2d21ac55
A		 315
316struct kmzones {
317 size_t kz_elemsize;
318 void *kz_zalloczone;
0b4c1975 319 boolean_t kz_noencrypt;
1c79356b
A		 320} kmzones[M_LAST] = {
321#define SOS(sname) sizeof (struct sname)
322#define SOX(sname) -1
0b4c1975
A		 323 { -1, 0, FALSE }, /* 0 M_FREE */
324 { MSIZE, KMZ_CREATEZONE, FALSE }, /* 1 M_MBUF */
325 { 0, KMZ_MALLOC, FALSE }, /* 2 M_DEVBUF */
326 { SOS(socket), KMZ_CREATEZONE, TRUE }, /* 3 M_SOCKET */
327 { SOS(inpcb), KMZ_LOOKUPZONE, TRUE }, /* 4 M_PCB */
328 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 5 M_RTABLE */
329 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 6 M_HTABLE */
330 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 7 M_FTABLE */
331 { SOS(rusage), KMZ_CREATEZONE, TRUE }, /* 8 M_ZOMBIE */
332 { 0, KMZ_MALLOC, FALSE }, /* 9 M_IFADDR */
333 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 10 M_SOOPTS */
334 { 0, KMZ_MALLOC, FALSE }, /* 11 M_SONAME */
335 { MAXPATHLEN, KMZ_CREATEZONE, FALSE }, /* 12 M_NAMEI */
336 { 0, KMZ_MALLOC, FALSE }, /* 13 M_GPROF */
337 { 0, KMZ_MALLOC, FALSE }, /* 14 M_IOCTLOPS */
338 { 0, KMZ_MALLOC, FALSE }, /* 15 M_MAPMEM */
339 { SOS(ucred), KMZ_CREATEZONE, FALSE }, /* 16 M_CRED */
340 { SOS(pgrp), KMZ_CREATEZONE, FALSE }, /* 17 M_PGRP */
341 { SOS(session), KMZ_CREATEZONE, FALSE }, /* 18 M_SESSION */
342 { SOS(user32_iovec), KMZ_LOOKUPZONE, FALSE },/* 19 M_IOV32 */
343 { SOS(mount), KMZ_CREATEZONE, FALSE }, /* 20 M_MOUNT */
344 { 0, KMZ_MALLOC, FALSE }, /* 21 M_FHANDLE */
2d21ac55 345#if (NFSCLIENT || NFSSERVER)
0b4c1975 346 { SOS(nfsreq), KMZ_CREATEZONE, FALSE }, /* 22 M_NFSREQ */
6d2010ae 347 { SOS(nfsmount),KMZ_CREATEZONE, FALSE }, /* 23 M_NFSMNT */
0b4c1975 348 { SOS(nfsnode), KMZ_CREATEZONE, FALSE }, /* 24 M_NFSNODE */
2d21ac55 349#else
0b4c1975
A		 350 { 0, KMZ_MALLOC, FALSE }, /* 22 M_NFSREQ */
351 { 0, KMZ_MALLOC, FALSE }, /* 23 M_NFSMNT */
352 { 0, KMZ_MALLOC, FALSE }, /* 24 M_NFSNODE */
2d21ac55 353#endif
0b4c1975 354 { SOS(vnode), KMZ_CREATEZONE, TRUE }, /* 25 M_VNODE */
6d2010ae 355 { SOS(namecache), KMZ_CREATEZONE, FALSE }, /* 26 M_CACHE */
2d21ac55 356#if QUOTA
0b4c1975 357 { SOX(dquot), KMZ_LOOKUPZONE, FALSE }, /* 27 M_DQUOT */
2d21ac55 358#else
0b4c1975 359 { 0, KMZ_MALLOC, FALSE }, /* 27 M_DQUOT */
2d21ac55 360#endif
39236c6e 361 { 0, KMZ_MALLOC, FALSE }, /* 28 M_PROC_UUID_POLICY */
6d2010ae 362 { 0, KMZ_MALLOC, FALSE }, /* 29 M_SHM */
0b4c1975 363 { SOS(plimit), KMZ_CREATEZONE, TRUE }, /* 30 M_PLIMIT */
6d2010ae 364 { SOS(sigacts), KMZ_CREATEZONE_ACCT, TRUE }, /* 31 M_SIGACTS */
0b4c1975
A		 365 { 0, KMZ_MALLOC, FALSE }, /* 32 M_VMOBJ */
366 { 0, KMZ_MALLOC, FALSE }, /* 33 M_VMOBJHASH */
367 { 0, KMZ_MALLOC, FALSE }, /* 34 M_VMPMAP */
368 { 0, KMZ_MALLOC, FALSE }, /* 35 M_VMPVENT */
369 { 0, KMZ_MALLOC, FALSE }, /* 36 M_VMPAGER */
370 { 0, KMZ_MALLOC, FALSE }, /* 37 M_VMPGDATA */
6d2010ae
A		 371 { SOS(fileproc),KMZ_CREATEZONE_ACCT, TRUE }, /* 38 M_FILEPROC */
372 { SOS(filedesc),KMZ_CREATEZONE_ACCT, TRUE }, /* 39 M_FILEDESC */
373 { SOX(lockf), KMZ_CREATEZONE_ACCT, TRUE }, /* 40 M_LOCKF */
0b4c1975
A		 374 { SOS(proc), KMZ_CREATEZONE, FALSE }, /* 41 M_PROC */
375 { SOS(pstats), KMZ_CREATEZONE, TRUE }, /* 42 M_PSTATS */
376 { 0, KMZ_MALLOC, FALSE }, /* 43 M_SEGMENT */
377 { M_FFSNODE, KMZ_SHAREZONE, FALSE }, /* 44 M_LFSNODE */
378 { 0, KMZ_MALLOC, FALSE }, /* 45 M_FFSNODE */
379 { M_FFSNODE, KMZ_SHAREZONE, FALSE }, /* 46 M_MFSNODE */
380 { 0, KMZ_MALLOC, FALSE }, /* 47 M_NQLEASE */
381 { 0, KMZ_MALLOC, FALSE }, /* 48 M_NQMHOST */
382 { 0, KMZ_MALLOC, FALSE }, /* 49 M_NETADDR */
2d21ac55
A		 383#if (NFSCLIENT || NFSSERVER)
384 { SOX(nfsrv_sock),
6d2010ae 385 KMZ_CREATEZONE_ACCT, FALSE }, /* 50 M_NFSSVC */
0b4c1975 386 { 0, KMZ_MALLOC, FALSE }, /* 51 M_NFSUID */
2d21ac55 387 { SOX(nfsrvcache),
6d2010ae 388 KMZ_CREATEZONE_ACCT, FALSE }, /* 52 M_NFSD */
2d21ac55 389#else
0b4c1975
A		 390 { 0, KMZ_MALLOC, FALSE }, /* 50 M_NFSSVC */
391 { 0, KMZ_MALLOC, FALSE }, /* 51 M_NFSUID */
392 { 0, KMZ_MALLOC, FALSE }, /* 52 M_NFSD */
2d21ac55
A		 393#endif
394 { SOX(ip_moptions),
0b4c1975
A		 395 KMZ_LOOKUPZONE, FALSE }, /* 53 M_IPMOPTS */
396 { SOX(in_multi),KMZ_LOOKUPZONE, FALSE }, /* 54 M_IPMADDR */
2d21ac55 397 { SOX(ether_multi),
0b4c1975
A		 398 KMZ_LOOKUPZONE, FALSE }, /* 55 M_IFMADDR */
399 { SOX(mrt), KMZ_CREATEZONE, TRUE }, /* 56 M_MRTABLE */
400 { 0, KMZ_MALLOC, FALSE }, /* 57 unused entry */
401 { 0, KMZ_MALLOC, FALSE }, /* 58 unused entry */
2d21ac55
A		 402#if (NFSCLIENT || NFSSERVER)
403 { SOS(nfsrv_descript),
6d2010ae 404 KMZ_CREATEZONE_ACCT, FALSE }, /* 59 M_NFSRVDESC */
0b4c1975
A		 405 { SOS(nfsdmap), KMZ_CREATEZONE, FALSE }, /* 60 M_NFSDIROFF */
406 { SOS(fhandle), KMZ_LOOKUPZONE, FALSE }, /* 61 M_NFSBIGFH */
2d21ac55 407#else
0b4c1975
A		 408 { 0, KMZ_MALLOC, FALSE }, /* 59 M_NFSRVDESC */
409 { 0, KMZ_MALLOC, FALSE }, /* 60 M_NFSDIROFF */
410 { 0, KMZ_MALLOC, FALSE }, /* 61 M_NFSBIGFH */
2d21ac55 411#endif
0b4c1975
A		 412 { 0, KMZ_MALLOC, FALSE }, /* 62 M_MSDOSFSMNT */
413 { 0, KMZ_MALLOC, FALSE }, /* 63 M_MSDOSFSFAT */
414 { 0, KMZ_MALLOC, FALSE }, /* 64 M_MSDOSFSNODE */
415 { SOS(tty), KMZ_CREATEZONE, FALSE }, /* 65 M_TTYS */
416 { 0, KMZ_MALLOC, FALSE }, /* 66 M_EXEC */
417 { 0, KMZ_MALLOC, FALSE }, /* 67 M_MISCFSMNT */
418 { 0, KMZ_MALLOC, FALSE }, /* 68 M_MISCFSNODE */
419 { 0, KMZ_MALLOC, FALSE }, /* 69 M_ADOSFSMNT */
420 { 0, KMZ_MALLOC, FALSE }, /* 70 M_ADOSFSNODE */
421 { 0, KMZ_MALLOC, FALSE }, /* 71 M_ANODE */
6d2010ae 422 { 0, KMZ_MALLOC, TRUE }, /* 72 M_BUFHDR */
2d21ac55 423 { (NDFILE * OFILESIZE),
6d2010ae 424 KMZ_CREATEZONE_ACCT, FALSE }, /* 73 M_OFILETABL */
0b4c1975 425 { MCLBYTES, KMZ_CREATEZONE, FALSE }, /* 74 M_MCLUST */
39037602
A		 426 { 0, KMZ_MALLOC, FALSE }, /* 75 unused */
427 { 0, KMZ_MALLOC, FALSE }, /* 76 unused */
428 { 0, KMZ_MALLOC, FALSE }, /* 77 unused */
39236c6e
A		 429 { 0, KMZ_MALLOC, FALSE }, /* 78 unused */
430 { 0, KMZ_MALLOC, FALSE }, /* 79 unused */
0b4c1975
A		 431 { 0, KMZ_MALLOC, FALSE }, /* 80 M_TEMP */
432 { 0, KMZ_MALLOC, FALSE }, /* 81 M_SECA */
433 { 0, KMZ_MALLOC, FALSE }, /* 82 M_DEVFS */
434 { 0, KMZ_MALLOC, FALSE }, /* 83 M_IPFW */
435 { 0, KMZ_MALLOC, FALSE }, /* 84 M_UDFNODE */
436 { 0, KMZ_MALLOC, FALSE }, /* 85 M_UDFMOUNT */
437 { 0, KMZ_MALLOC, FALSE }, /* 86 M_IP6NDP */
438 { 0, KMZ_MALLOC, FALSE }, /* 87 M_IP6OPT */
439 { 0, KMZ_MALLOC, FALSE }, /* 88 M_IP6MISC */
440 { 0, KMZ_MALLOC, FALSE }, /* 89 M_TSEGQ */
441 { 0, KMZ_MALLOC, FALSE }, /* 90 M_IGMP */
39037602
A		 442 { 0, KMZ_MALLOC, FALSE }, /* 91 unused */
443 { 0, KMZ_MALLOC, FALSE }, /* 92 unused */
6d2010ae
A		 444 { SOS(specinfo),KMZ_CREATEZONE, TRUE }, /* 93 M_SPECINFO */
445 { SOS(kqueue), KMZ_CREATEZONE, FALSE }, /* 94 M_KQUEUE */
39037602 446 { 0, KMZ_MALLOC, FALSE }, /* 95 unused */
0b4c1975
A		 447 { SOS(cl_readahead), KMZ_CREATEZONE, TRUE }, /* 96 M_CLRDAHEAD */
448 { SOS(cl_writebehind),KMZ_CREATEZONE, TRUE }, /* 97 M_CLWRBEHIND */
449 { SOS(user64_iovec), KMZ_LOOKUPZONE, FALSE },/* 98 M_IOV64 */
450 { SOS(fileglob), KMZ_CREATEZONE, TRUE }, /* 99 M_FILEGLOB */
451 { 0, KMZ_MALLOC, FALSE }, /* 100 M_KAUTH */
452 { 0, KMZ_MALLOC, FALSE }, /* 101 M_DUMMYNET */
0b4c1975 453 { 0, KMZ_MALLOC, FALSE }, /* 102 M_UNSAFEFS */
0b4c1975
A		 454 { 0, KMZ_MALLOC, FALSE }, /* 103 M_MACPIPELABEL */
455 { 0, KMZ_MALLOC, FALSE }, /* 104 M_MACTEMP */
456 { 0, KMZ_MALLOC, FALSE }, /* 105 M_SBUF */
457 { 0, KMZ_MALLOC, FALSE }, /* 106 M_HFS_EXTATTR */
3e170ce0 458 { 0, KMZ_MALLOC, FALSE }, /* 107 M_SELECT */
0b4c1975 459 { 0, KMZ_MALLOC, FALSE }, /* 108 M_TRAFFIC_MGT */
39037602 460#if FS_COMPRESSION
6d2010ae 461 { SOS(decmpfs_cnode),KMZ_CREATEZONE , FALSE}, /* 109 M_DECMPFS_CNODE */
b0d623f7 462#else
0b4c1975 463 { 0, KMZ_MALLOC, FALSE }, /* 109 M_DECMPFS_CNODE */
39037602 464#endif /* FS_COMPRESSION */
6d2010ae
A		 465 { 0, KMZ_MALLOC, FALSE }, /* 110 M_INMFILTER */
466 { 0, KMZ_MALLOC, FALSE }, /* 111 M_IPMSOURCE */
467 { 0, KMZ_MALLOC, FALSE }, /* 112 M_IN6MFILTER */
468 { 0, KMZ_MALLOC, FALSE }, /* 113 M_IP6MOPTS */
469 { 0, KMZ_MALLOC, FALSE }, /* 114 M_IP6MSOURCE */
39236c6e
A		 470#if FLOW_DIVERT
471 { SOS(flow_divert_pcb), KMZ_CREATEZONE, TRUE }, /* 115 M_FLOW_DIVERT_PCB */
472 { SOS(flow_divert_group), KMZ_CREATEZONE, TRUE }, /* 116 M_FLOW_DIVERT_GROUP */
473#else
474 { 0, KMZ_MALLOC, FALSE }, /* 115 M_FLOW_DIVERT_PCB */
475 { 0, KMZ_MALLOC, FALSE }, /* 116 M_FLOW_DIVERT_GROUP */
476#endif /* FLOW_DIVERT */
477 { 0, KMZ_MALLOC, FALSE }, /* 117 M_IP6CGA */
fe8ab488
A		 478 { 0, KMZ_MALLOC, FALSE }, /* 118 M_NECP */
479#if NECP
480 { SOS(necp_session_policy), KMZ_CREATEZONE, TRUE }, /* 119 M_NECP_SESSION_POLICY */
481 { SOS(necp_kernel_socket_policy), KMZ_CREATEZONE, TRUE }, /* 120 M_NECP_SOCKET_POLICY */
482 { SOS(necp_kernel_ip_output_policy), KMZ_CREATEZONE, TRUE }, /* 121 M_NECP_IP_POLICY */
483#else
484 { 0, KMZ_MALLOC, FALSE }, /* 119 M_NECP_SESSION_POLICY */
485 { 0, KMZ_MALLOC, FALSE }, /* 120 M_NECP_SOCKET_POLICY */
486 { 0, KMZ_MALLOC, FALSE }, /* 121 M_NECP_IP_POLICY */
487#endif /* NECP */
3e170ce0
A		 488 { 0, KMZ_MALLOC, FALSE }, /* 122 M_FD_VN_DATA */
489 { 0, KMZ_MALLOC, FALSE }, /* 123 M_FD_DIRBUF */
490 { 0, KMZ_MALLOC, FALSE }, /* 124 M_NETAGENT */
5ba3f43e
A		 491 { 0, KMZ_MALLOC, FALSE }, /* 125 M_EVENTHANDLER */
492 { 0, KMZ_MALLOC, FALSE }, /* 126 M_LLTABLE */
493 { 0, KMZ_MALLOC, FALSE }, /* 127 M_NWKWQ */
1c79356b
A		 494#undef SOS
495#undef SOX
496};
497
55e303ae 498extern zone_t kalloc_zone(vm_size_t); /* XXX */
1c79356b
A		 499
500/*
501 * Initialize the kernel memory allocator
502 */
503void
504kmeminit(void)
505{
506 struct kmzones *kmz;
507
d7e50217 508 if ((sizeof(kmzones)/sizeof(kmzones[0])) != (sizeof(memname)/sizeof(memname[0]))) {
2d21ac55 509 panic("kmeminit: kmzones has %lu elements but memname has %lu\n",
d7e50217
A		 510 (sizeof(kmzones)/sizeof(kmzones[0])), (sizeof(memname)/sizeof(memname[0])));
511 }
512
1c79356b
A		 513 kmz = kmzones;
514 while (kmz < &kmzones[M_LAST]) {
515/* XXX */
2d21ac55 516 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 517 ;
518 else
519/* XXX */
6d2010ae
A		 520 if (kmz->kz_zalloczone == KMZ_CREATEZONE ||
521 kmz->kz_zalloczone == KMZ_CREATEZONE_ACCT) {
1c79356b
A		 522 kmz->kz_zalloczone = zinit(kmz->kz_elemsize,
523 1024 * 1024, PAGE_SIZE,
524 memname[kmz - kmzones]);
6d2010ae
A		 525 zone_change(kmz->kz_zalloczone, Z_CALLERACCT,
526 (kmz->kz_zalloczone == KMZ_CREATEZONE_ACCT));
527
0b4c1975
A		 528 if (kmz->kz_noencrypt == TRUE)
529 zone_change(kmz->kz_zalloczone, Z_NOENCRYPT, TRUE);
1c79356b
A		 530 }
531 else if (kmz->kz_zalloczone == KMZ_LOOKUPZONE)
532 kmz->kz_zalloczone = kalloc_zone(kmz->kz_elemsize);
533
534 kmz++;
535 }
536
537 kmz = kmzones;
538 while (kmz < &kmzones[M_LAST]) {
539/* XXX */
2d21ac55 540 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 541 ;
542 else
543/* XXX */
544 if (kmz->kz_zalloczone == KMZ_SHAREZONE) {
545 kmz->kz_zalloczone =
546 kmzones[kmz->kz_elemsize].kz_zalloczone;
547 kmz->kz_elemsize =
548 kmzones[kmz->kz_elemsize].kz_elemsize;
549 }
550
551 kmz++;
552 }
553}
554
91447636 555void *
3e170ce0
A		 556_MALLOC_external(
557 size_t size,
558 int type,
559 int flags);
560void *
561_MALLOC_external(
1c79356b
A		 562 size_t size,
563 int type,
564 int flags)
3e170ce0 565{
5ba3f43e 566 static vm_allocation_site_t site = { .tag = VM_KERN_MEMORY_KALLOC, .flags = VM_TAG_BT };
3e170ce0
A		 567 return (__MALLOC(size, type, flags, &site));
568}
569
570void *
571__MALLOC(
572 size_t size,
573 int type,
574 int flags,
575 vm_allocation_site_t *site)
1c79356b 576{
39037602
A		 577 void *addr = NULL;
578 vm_size_t msize = size;
1c79356b
A		 579
580 if (type >= M_LAST)
581 panic("_malloc TYPE");
582
583 if (size == 0)
2d21ac55 584 return (NULL);
1c79356b 585
39037602
A		 586 if (msize != size) {
587 panic("Requested size to __MALLOC is too large (%llx)!\n", (uint64_t)size);
588 }
589
1c79356b 590 if (flags & M_NOWAIT) {
39037602 591 addr = (void *)kalloc_canblock(&msize, FALSE, site);
1c79356b 592 } else {
39037602
A		 593 addr = (void *)kalloc_canblock(&msize, TRUE, site);
594 if (addr == NULL) {
b0d623f7
A		 595 /*
596 * We get here when the caller told us to block waiting for memory, but
597 * kalloc said there's no memory left to get. Generally, this means there's a
813fb2f6
A		 598 * leak or the caller asked for an impossibly large amount of memory. If the caller
599 * is expecting a NULL return code then it should explicitly set the flag M_NULL.
600 * If the caller isn't expecting a NULL return code, we just panic. This is less
601 * than ideal, but returning NULL when the caller isn't expecting it doesn't help
602 * since the majority of callers don't check the return value and will just
603 * dereference the pointer and trap anyway. We may as well get a more
604 * descriptive message out while we can.
b0d623f7 605 */
813fb2f6
A		 606 if (flags & M_NULL) {
607 return NULL;
608 }
b0d623f7
A		 609 panic("_MALLOC: kalloc returned NULL (potential leak), size %llu", (uint64_t) size);
610 }
1c79356b 611 }
39037602 612 if (!addr)
1c79356b
A		 613 return (0);
614
55e303ae 615 if (flags & M_ZERO)
39037602 616 bzero(addr, size);
55e303ae 617
39037602 618 return (addr);
1c79356b
A		 619}
620
91447636
A		 621void
622_FREE(
1c79356b
A		 623 void *addr,
624 int type)
625{
1c79356b
A		 626 if (type >= M_LAST)
627 panic("_free TYPE");
628
9bccf70c
A		 629 if (!addr)
630 return; /* correct (convenient bsd kernel legacy) */
1c79356b 631
39037602 632 kfree_addr(addr);
1c79356b
A		 633}
634
6d2010ae 635void *
3e170ce0 636__REALLOC(
6d2010ae
A		 637 void *addr,
638 size_t size,
639 int type,
3e170ce0
A		 640 int flags,
641 vm_allocation_site_t *site)
6d2010ae 642{
6d2010ae
A		 643 void *newaddr;
644 size_t alloc;
645
646 /* realloc(NULL, ...) is equivalent to malloc(...) */
647 if (addr == NULL)
3e170ce0 648 return (__MALLOC(size, type, flags, site));
6d2010ae 649
39037602
A		 650 alloc = kalloc_size(addr);
651 /*
652 * Find out the size of the bucket in which the new sized allocation
653 * would land. If it matches the bucket of the original allocation,
654 * simply return the address.
655 */
813fb2f6
A		 656 if (kalloc_bucket_size(size) == alloc) {
657 if (flags & M_ZERO) {
658 if (alloc < size)
5ba3f43e 659 bzero(addr + alloc, (size - alloc));
813fb2f6 660 else
5ba3f43e 661 bzero(addr + size, (alloc - size));
813fb2f6 662 }
39037602 663 return addr;
813fb2f6 664 }
39037602 665
6d2010ae 666 /* Allocate a new, bigger (or smaller) block */
3e170ce0 667 if ((newaddr = __MALLOC(size, type, flags, site)) == NULL)
6d2010ae
A		 668 return (NULL);
669
6d2010ae
A		 670 /* Copy over original contents */
671 bcopy(addr, newaddr, MIN(size, alloc));
672 _FREE(addr, type);
673
674 return (newaddr);
675}
676
91447636 677void *
3e170ce0
A		 678_MALLOC_ZONE_external(
679 size_t size,
680 int type,
681 int flags);
682void *
683_MALLOC_ZONE_external(
1c79356b
A		 684 size_t size,
685 int type,
686 int flags)
3e170ce0
A		 687{
688 return (__MALLOC_ZONE(size, type, flags, NULL));
689}
690
691void *
692__MALLOC_ZONE(
693 size_t size,
694 int type,
695 int flags,
696 vm_allocation_site_t *site)
1c79356b
A		 697{
698 struct kmzones *kmz;
699 void *elem;
700
701 if (type >= M_LAST)
702 panic("_malloc_zone TYPE");
703
704 kmz = &kmzones[type];
705 if (kmz->kz_zalloczone == KMZ_MALLOC)
91447636 706 panic("_malloc_zone ZONE: type = %d", type);
1c79356b
A		 707
708/* XXX */
2d21ac55 709 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 710 panic("_malloc_zone XXX");
711/* XXX */
712 if (size == kmz->kz_elemsize)
713 if (flags & M_NOWAIT) {
714 elem = (void *)zalloc_noblock(kmz->kz_zalloczone);
715 } else {
716 elem = (void *)zalloc(kmz->kz_zalloczone);
717 }
39037602
A		 718 else {
719 vm_size_t kalloc_size = size;
720 if (size > kalloc_size) {
721 elem = NULL;
722 } else if (flags & M_NOWAIT) {
723 elem = (void *)kalloc_canblock(&kalloc_size, FALSE, site);
1c79356b 724 } else {
39037602 725 elem = (void *)kalloc_canblock(&kalloc_size, TRUE, site);
1c79356b 726 }
39037602 727 }
1c79356b 728
4d15aeb1
A		 729 if (elem && (flags & M_ZERO))
730 bzero(elem, size);
731
1c79356b
A		 732 return (elem);
733}
734
91447636
A		 735void
736_FREE_ZONE(
1c79356b
A		 737 void *elem,
738 size_t size,
739 int type)
740{
741 struct kmzones *kmz;
742
743 if (type >= M_LAST)
744 panic("FREE_SIZE");
745
746 kmz = &kmzones[type];
747 if (kmz->kz_zalloczone == KMZ_MALLOC)
748 panic("free_zone ZONE");
749
750/* XXX */
2d21ac55 751 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 752 panic("FREE_SIZE XXX");
753/* XXX */
754 if (size == kmz->kz_elemsize)
91447636 755 zfree(kmz->kz_zalloczone, elem);
1c79356b 756 else
91447636 757 kfree(elem, size);
1c79356b 758}
6d2010ae 759
5ba3f43e
A		 760#if DEBUG || DEVELOPMENT
761
762extern unsigned int zone_map_jetsam_limit;
763
764static int
765sysctl_zone_map_jetsam_limit SYSCTL_HANDLER_ARGS
766{
767#pragma unused(oidp, arg1, arg2)
768 int oldval = 0, val = 0, error = 0;
769
770 oldval = zone_map_jetsam_limit;
771 error = sysctl_io_number(req, oldval, sizeof(int), &val, NULL);
772 if (error || !req->newptr) {
773 return (error);
774 }
775
776 if (val <= 0 || val > 100) {
777 printf("sysctl_zone_map_jetsam_limit: new jetsam limit value is invalid.\n");
778 return EINVAL;
779 }
780
781 zone_map_jetsam_limit = val;
782 return (0);
783}
784
785SYSCTL_PROC(_kern, OID_AUTO, zone_map_jetsam_limit, CTLTYPE_INT|CTLFLAG_RW, 0, 0,
786 sysctl_zone_map_jetsam_limit, "I", "Zone map jetsam limit");
787
788extern boolean_t run_zone_test(void);
789
790static int
791sysctl_run_zone_test SYSCTL_HANDLER_ARGS
792{
793#pragma unused(oidp, arg1, arg2)
794 int ret_val = run_zone_test();
795
796 return SYSCTL_OUT(req, &ret_val, sizeof(ret_val));
797}
798
799SYSCTL_PROC(_kern, OID_AUTO, run_zone_test,
800 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED,
801 0, 0, &sysctl_run_zone_test, "I", "Test zone allocator KPI");
802
803#endif /* DEBUG || DEVELOPMENT */
804
6d2010ae
A		 805#if CONFIG_ZLEAKS
806
807SYSCTL_DECL(_kern_zleak);
808SYSCTL_NODE(_kern, OID_AUTO, zleak, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "zleak");
809
810/*
811 * kern.zleak.active
812 *
813 * Show the status of the zleak subsystem (0 = enabled, 1 = active,
814 * and -1 = failed), and if enabled, allow it to be activated immediately.
815 */
816static int
817sysctl_zleak_active SYSCTL_HANDLER_ARGS
818{
819#pragma unused(arg1, arg2)
820 int oldval, val, error;
821
822 val = oldval = get_zleak_state();
823 error = sysctl_handle_int(oidp, &val, 0, req);
824 if (error || !req->newptr)
825 return (error);
826 /*
827 * Can only be activated if it's off (and not failed.)
828 * Cannot be deactivated once it's on.
829 */
830 if (val == 1 && oldval == 0) {
831 kern_return_t kr = zleak_activate();
832
833 if (KERN_SUCCESS != kr)
834 printf("zleak_active: failed to activate "
835 "live zone leak debugging (%d).\n", kr);
836 } if (val == 0 && oldval == 1) {
837 printf("zleak_active: active, cannot be disabled.\n");
838 return (EINVAL);
839 }
840 return (0);
841}
842
843SYSCTL_PROC(_kern_zleak, OID_AUTO, active,
844 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
845 0, 0, sysctl_zleak_active, "I", "zleak activity");
846
847/*
848 * kern.zleak.max_zonemap_size
849 *
850 * Read the value of the maximum zonemap size in bytes; useful
851 * as the maximum size that zleak.global_threshold and
852 * zleak.zone_threshold should be set to.
853 */
854static int
855sysctl_zleak_max_zonemap_size SYSCTL_HANDLER_ARGS
856{
857 uint64_t zmap_max_size = *(vm_size_t *)arg1;
858
859 return sysctl_handle_quad(oidp, &zmap_max_size, arg2, req);
860}
861
862SYSCTL_PROC(_kern_zleak, OID_AUTO, max_zonemap_size,
863 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
864 &zleak_max_zonemap_size, 0,
865 sysctl_zleak_max_zonemap_size, "Q", "zleak max zonemap size");
866
867
868static int
869sysctl_zleak_threshold SYSCTL_HANDLER_ARGS
870{
871#pragma unused(oidp, arg2)
872 int error;
873 uint64_t value = *(vm_size_t *)arg1;
874
875 error = sysctl_io_number(req, value, sizeof (value), &value, NULL);
876
877 if (error || !req->newptr)
878 return (error);
879
880 if (value > (uint64_t)zleak_max_zonemap_size)
881 return (ERANGE);
882
883 *(vm_size_t *)arg1 = value;
884 return (0);
885}
886
887/*
888 * kern.zleak.global_threshold
889 *
890 * Set the global zleak threshold size (in bytes). If the zone map
891 * grows larger than this value, zleaks are automatically activated.
892 *
893 * The default value is set in zleak_init().
894 */
895SYSCTL_PROC(_kern_zleak, OID_AUTO, global_threshold,
896 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
897 &zleak_global_tracking_threshold, 0,
898 sysctl_zleak_threshold, "Q", "zleak global threshold");
899
900/*
901 * kern.zleak.zone_threshold
902 *
903 * Set the per-zone threshold size (in bytes) above which any
904 * zone will automatically start zleak tracking.
905 *
906 * The default value is set in zleak_init().
907 *
908 * Setting this variable will have no effect until zleak tracking is
909 * activated (See above.)
910 */
911SYSCTL_PROC(_kern_zleak, OID_AUTO, zone_threshold,
912 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
913 &zleak_per_zone_tracking_threshold, 0,
914 sysctl_zleak_threshold, "Q", "zleak per-zone threshold");
915
916#endif /* CONFIG_ZLEAKS */
5ba3f43e
A		 917
918extern uint64_t get_zones_collectable_bytes(void);
919
920static int
921sysctl_zones_collectable_bytes SYSCTL_HANDLER_ARGS
922{
923#pragma unused(oidp, arg1, arg2)
924 uint64_t zones_free_mem = get_zones_collectable_bytes();
925
926 return SYSCTL_OUT(req, &zones_free_mem, sizeof(zones_free_mem));
927}
928
929SYSCTL_PROC(_kern, OID_AUTO, zones_collectable_bytes,
930 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED,
931 0, 0, &sysctl_zones_collectable_bytes, "Q", "Collectable memory in zones");
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