bsd/kern/kern_malloc.c

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   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.
  14  *
  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
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  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.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  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  */
  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  */
  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>
  77
  78 #include <netinet/in.h>
  79 #include <netinet/in_systm.h>
  80 #include <netinet/ip.h>
  81 #include <netinet/in_pcb.h>
  82
  83 #include <sys/event.h>
  84 #include <sys/eventvar.h>
  85
  86 #include <sys/proc_internal.h>
  87 #include <sys/mount_internal.h>
  88 #include <sys/vnode_internal.h>
  89 #include <sys/ubc_internal.h>
  90 #include <sys/namei.h>
  91 #include <sys/file_internal.h>
  92 #include <sys/filedesc.h>
  93 #include <sys/tty.h>
  94 #include <sys/quota.h>
  95 #include <sys/uio_internal.h>
  96 #include <sys/resourcevar.h>
  97 #include <sys/signalvar.h>
  98
  99 #include <ufs/ufs/inode.h>
 100
 101 #include <hfs/hfs_cnode.h>
 102 #include <isofs/cd9660/cd9660_node.h>
 103
 104 #include <miscfs/specfs/specdev.h>
 105
 106 #include <nfs/rpcv2.h>
 107 #include <nfs/nfsproto.h>
 108 #include <nfs/nfsnode.h>
 109 #include <nfs/nfsmount.h>
 110
 111 #include <vfs/vfs_journal.h>
 112
 113 #include <mach/mach_types.h>
 114
 115 #include <kern/zalloc.h>
 116 #include <kern/kalloc.h>
 117
 118 void kmeminit(void) __attribute__((section("__TEXT, initcode")));
 119
 120 /* Strings corresponding to types of memory.
 121  * Must be in synch with the #defines is sys/malloc.h
 122  * NOTE - the reason we pass null strings in some cases is to reduce of foot
 123  * print as much as possible for systems where a tiny kernel is needed.
 124  * todo - We should probably redsign this and use enums for our types and only
 125  * include types needed for that configuration of the kernel.  This can't be
 126  * done without some kind of kpi since several types are hardwired and exported
 127  * (for example see types M_HFSMNT, M_UDFMNT, M_TEMP, etc in sys/malloc.h)
 128  */
 129 const char *memname[] = {
 130         "free",         /* 0 M_FREE */
 131         "mbuf",         /* 1 M_MBUF */
 132         "devbuf",       /* 2 M_DEVBUF */
 133         "socket",       /* 3 M_SOCKET */
 134         "pcb",          /* 4 M_PCB */
 135         "routetbl",     /* 5 M_RTABLE */
 136         "hosttbl",      /* 6 M_HTABLE */
 137         "fragtbl",      /* 7 M_FTABLE */
 138         "zombie",       /* 8 M_ZOMBIE */
 139         "ifaddr",       /* 9 M_IFADDR */
 140         "soopts",       /* 10 M_SOOPTS */
 141         "soname",       /* 11 M_SONAME */
 142         "namei",        /* 12 M_NAMEI */
 143         "gprof",        /* 13 M_GPROF */
 144         "ioctlops",     /* 14 M_IOCTLOPS */
 145         "mapmem",       /* 15 M_MAPMEM */
 146         "cred",         /* 16 M_CRED */
 147         "pgrp",         /* 17 M_PGRP */
 148         "session",      /* 18 M_SESSION */
 149         "iov32",        /* 19 M_IOV32 */
 150         "mount",        /* 20 M_MOUNT */
 151         "fhandle",              /* 21 M_FHANDLE */
 152 #if (NFSCLIENT || NFSSERVER)
 153         "NFS req",              /* 22 M_NFSREQ */
 154         "NFS mount",    /* 23 M_NFSMNT */
 155         "NFS node",             /* 24 M_NFSNODE */
 156 #else
 157         "",                             /* 22 M_NFSREQ */
 158         "",                             /* 23 M_NFSMNT */
 159         "",                             /* 24 M_NFSNODE */
 160 #endif
 161         "vnodes",               /* 25 M_VNODE */
 162         "namecache",    /* 26 M_CACHE */
 163 #if QUOTA
 164         "UFS quota",    /* 27 M_DQUOT */
 165 #else
 166         "",                             /* 27 M_DQUOT */
 167 #endif
 168 #if FFS
 169         "UFS mount",    /* 28 M_UFSMNT */
 170 #else
 171         "",                             /* 28 M_UFSMNT */
 172 #endif
 173 #if (SYSV_SEM || SYSV_MSG || SYSV_SHM)
 174         "shm",                  /* 29 M_SHM */
 175 #else
 176         "",                             /* 29 M_SHM */
 177 #endif
 178         "plimit",               /* 30 M_VMMAP */
 179         "sigacts",      /* 31 M_VMMAPENT */
 180         "VM object",    /* 32 M_VMOBJ */
 181         "VM objhash",   /* 33 M_VMOBJHASH */
 182         "VM pmap",              /* 34 M_VMPMAP */
 183         "VM pvmap",             /* 35 M_VMPVENT */
 184         "VM pager",             /* 36 M_VMPAGER */
 185         "VM pgdata",    /* 37 M_VMPGDATA */
 186         "fileproc",             /* 38 M_FILEPROC */
 187         "file desc",    /* 39 M_FILEDESC */
 188         "lockf",                /* 40 M_LOCKF */
 189         "proc",                 /* 41 M_PROC */
 190         "pstats",               /* 42 M_SUBPROC */
 191         "LFS segment",  /* 43 M_SEGMENT */
 192         "LFS node",             /* 44 M_LFSNODE */
 193 #if FFS
 194         "FFS node",             /* 45 M_FFSNODE */
 195 #else
 196         "",                             /* 45 M_FFSNODE */
 197 #endif
 198         "MFS node",             /* 46 M_MFSNODE */
 199         "NQNFS Lease",  /* 47 M_NQLEASE */
 200         "NQNFS Host",   /* 48 M_NQMHOST */
 201         "Export Host",  /* 49 M_NETADDR */
 202 #if (NFSCLIENT || NFSSERVER)
 203         "NFS srvsock",  /* 50 M_NFSSVC */
 204         "NFS uid",              /* 51 M_NFSUID */
 205         "NFS daemon",   /* 52 M_NFSD */
 206 #else
 207         "",                             /* 50 M_NFSSVC */
 208         "",                             /* 51 M_NFSUID */
 209         "",                             /* 52 M_NFSD */
 210 #endif
 211         "ip_moptions",  /* 53 M_IPMOPTS */
 212         "in_multi",             /* 54 M_IPMADDR */
 213         "ether_multi",  /* 55 M_IFMADDR */
 214         "mrt",                  /* 56 M_MRTABLE */
 215 #if CD9660
 216         "ISOFS mount",  /* 57 M_ISOFSMNT */
 217         "ISOFS node",   /* 58 M_ISOFSNODE */
 218 #else
 219         "",                             /* 57 M_ISOFSMNT */
 220         "",                             /* 58 M_ISOFSNODE */
 221 #endif
 222 #if (NFSCLIENT || NFSSERVER)
 223         "NFSV3 srvdesc",/* 59 M_NFSRVDESC */
 224         "NFSV3 diroff", /* 60 M_NFSDIROFF */
 225         "NFSV3 bigfh",  /* 61 M_NFSBIGFH */
 226 #else
 227         "",                             /* 59 M_NFSRVDESC */
 228         "",                             /* 60 M_NFSDIROFF */
 229         "",                             /* 61 M_NFSBIGFH */
 230 #endif
 231         "MSDOSFS mount",/* 62 M_MSDOSFSMNT */
 232         "MSDOSFS fat",  /* 63 M_MSDOSFSFAT */
 233         "MSDOSFS node", /* 64 M_MSDOSFSNODE */
 234         "ttys",                 /* 65 M_TTYS */
 235         "exec",                 /* 66 M_EXEC */
 236         "miscfs mount", /* 67 M_MISCFSMNT */
 237         "miscfs node",  /* 68 M_MISCFSNODE */
 238         "adosfs mount", /* 69 M_ADOSFSMNT */
 239         "adosfs node",  /* 70 M_ADOSFSNODE */
 240         "adosfs anode", /* 71 M_ANODE */
 241         "buf hdrs",             /* 72 M_BUFHDR */
 242         "ofile tabl",   /* 73 M_OFILETABL */
 243         "mbuf clust",   /* 74 M_MCLUST */
 244 #if HFS
 245         "HFS mount",    /* 75 M_HFSMNT */
 246         "HFS node",             /* 76 M_HFSNODE */
 247         "HFS fork",             /* 77 M_HFSFORK */
 248 #else
 249         "",                             /* 75 M_HFSMNT */
 250         "",                             /* 76 M_HFSNODE */
 251         "",                             /* 77 M_HFSFORK */
 252 #endif
 253         "ZFS mount",    /* 78 M_ZFSFSMNT */
 254         "ZFS node",     /* 79 M_ZFSNODE */
 255         "temp",                 /* 80 M_TEMP */
 256         "key mgmt",             /* 81 M_SECA */
 257         "DEVFS",                /* 82 M_DEVFS */
 258         "IpFw/IpAcct",  /* 83 M_IPFW */
 259         "UDF node",             /* 84 M_UDFNODE */
 260         "UDF mount",    /* 85 M_UDFMNT */
 261 #if INET6
 262         "IPv6 NDP",             /* 86 M_IP6NDP */
 263         "IPv6 options", /* 87 M_IP6OPT */
 264         "IPv6 Misc",    /* 88 M_IP6MISC */
 265 #else
 266         "",                             /* 86 M_IP6NDP */
 267         "",                             /* 87 M_IP6OPT */
 268         "",                             /* 88 M_IP6MISC */
 269 #endif
 270         "TCP Segment Q",/* 89 M_TSEGQ */
 271         "IGMP state",   /* 90 M_IGMP */
 272 #if JOURNALING
 273         "Journal",              /* 91 M_JNL_JNL */
 274         "Transaction",  /* 92 M_JNL_TR */
 275 #else
 276         "",                     /* 91 M_JNL_JNL */
 277         "",                     /* 92 M_JNL_TR */
 278 #endif
 279         "specinfo",             /* 93 M_SPECINFO */
 280         "kqueue",               /* 94 M_KQUEUE */
 281 #if HFS
 282         "HFS dirhint",  /* 95 M_HFSDIRHINT */
 283 #else
 284         "",                             /* 95 M_HFSDIRHINT */
 285 #endif
 286         "cluster_read", /* 96 M_CLRDAHEAD */
 287         "cluster_write",/* 97 M_CLWRBEHIND */
 288         "iov64",                /* 98 M_IOV64 */
 289         "fileglob",             /* 99 M_FILEGLOB */
 290         "kauth",                /* 100 M_KAUTH */
 291         "dummynet",             /* 101 M_DUMMYNET */
 292         "unsafe_fsnode",        /* 102 M_UNSAFEFS */
 293         "macpipelabel", /* 103 M_MACPIPELABEL */
 294         "mactemp",      /* 104 M_MACTEMP */
 295         "sbuf",         /* 105 M_SBUF */
 296         "extattr",      /* 106 M_EXTATTR */
 297         "lctx",         /* 107 M_LCTX */
 298 #if TRAFFIC_MGT
 299         "traffic_mgt",   /* 108 M_TRAFFIC_MGT */
 300 #else
 301         "", /* 108 M_TRAFFIC_MGT */
 302 #endif
 303 };
 304
 305 /* for use with kmzones.kz_zalloczone */
 306 #define KMZ_CREATEZONE          ((void *)-2)
 307 #define KMZ_LOOKUPZONE          ((void *)-1)
 308 #define KMZ_MALLOC                      ((void *)0)
 309 #define KMZ_SHAREZONE           ((void *)1)
 310
 311 struct kmzones {
 312         size_t          kz_elemsize;
 313         void            *kz_zalloczone;
 314 } kmzones[M_LAST] = {
 315 #define SOS(sname)      sizeof (struct sname)
 316 #define SOX(sname)      -1
 317         { -1,           0 },                    /* 0 M_FREE */
 318         { MSIZE,        KMZ_CREATEZONE },       /* 1 M_MBUF */
 319         { 0,            KMZ_MALLOC },           /* 2 M_DEVBUF */
 320         { SOS(socket),  KMZ_CREATEZONE },       /* 3 M_SOCKET */
 321         { SOS(inpcb),   KMZ_LOOKUPZONE },       /* 4 M_PCB */
 322         { M_MBUF,       KMZ_SHAREZONE },        /* 5 M_RTABLE */
 323         { M_MBUF,       KMZ_SHAREZONE },        /* 6 M_HTABLE */
 324         { M_MBUF,       KMZ_SHAREZONE },        /* 7 M_FTABLE */
 325         { SOS(rusage),  KMZ_CREATEZONE },       /* 8 M_ZOMBIE */
 326         { 0,            KMZ_MALLOC },           /* 9 M_IFADDR */
 327         { M_MBUF,       KMZ_SHAREZONE },                /* 10 M_SOOPTS */
 328         { 0,            KMZ_MALLOC },           /* 11 M_SONAME */
 329         { MAXPATHLEN,   KMZ_CREATEZONE },               /* 12 M_NAMEI */
 330         { 0,            KMZ_MALLOC },           /* 13 M_GPROF */
 331         { 0,            KMZ_MALLOC },           /* 14 M_IOCTLOPS */
 332         { 0,            KMZ_MALLOC },           /* 15 M_MAPMEM */
 333         { SOS(ucred),   KMZ_CREATEZONE },       /* 16 M_CRED */
 334         { SOS(pgrp),    KMZ_CREATEZONE },       /* 17 M_PGRP */
 335         { SOS(session), KMZ_CREATEZONE },       /* 18 M_SESSION */
 336         { SOS(iovec_32),        KMZ_LOOKUPZONE },       /* 19 M_IOV32 */
 337         { SOS(mount),   KMZ_CREATEZONE },       /* 20 M_MOUNT */
 338         { 0,            KMZ_MALLOC },           /* 21 M_FHANDLE */
 339 #if (NFSCLIENT || NFSSERVER)
 340         { SOS(nfsreq),  KMZ_CREATEZONE },       /* 22 M_NFSREQ */
 341         { SOS(nfsmount),        KMZ_CREATEZONE },       /* 23 M_NFSMNT */
 342         { SOS(nfsnode), KMZ_CREATEZONE },       /* 24 M_NFSNODE */
 343 #else
 344         { 0,            KMZ_MALLOC },           /* 22 M_NFSREQ */
 345         { 0,            KMZ_MALLOC },           /* 23 M_NFSMNT */
 346         { 0,            KMZ_MALLOC },           /* 24 M_NFSNODE */
 347 #endif
 348         { SOS(vnode),   KMZ_CREATEZONE },       /* 25 M_VNODE */
 349         { SOS(namecache),       KMZ_CREATEZONE },       /* 26 M_CACHE */
 350 #if QUOTA
 351         { SOX(dquot),   KMZ_LOOKUPZONE },       /* 27 M_DQUOT */
 352 #else
 353         { 0,            KMZ_MALLOC },           /* 27 M_DQUOT */
 354 #endif
 355 #if FFS
 356         { SOX(ufsmount),        KMZ_LOOKUPZONE },       /* 28 M_UFSMNT */
 357 #else
 358         { 0,            KMZ_MALLOC },           /* 28 M_UFSMNT */
 359 #endif
 360         { 0,            KMZ_MALLOC },           /* 29 M_CGSUM */
 361         { SOS(plimit),  KMZ_CREATEZONE },       /* 30 M_PLIMIT */
 362         { SOS(sigacts), KMZ_CREATEZONE },       /* 31 M_SIGACTS */
 363         { 0,            KMZ_MALLOC },           /* 32 M_VMOBJ */
 364         { 0,            KMZ_MALLOC },           /* 33 M_VMOBJHASH */
 365         { 0,            KMZ_MALLOC },           /* 34 M_VMPMAP */
 366         { 0,            KMZ_MALLOC },           /* 35 M_VMPVENT */
 367         { 0,            KMZ_MALLOC },           /* 36 M_VMPAGER */
 368         { 0,            KMZ_MALLOC },           /* 37 M_VMPGDATA */
 369         { SOS(fileproc),        KMZ_CREATEZONE },       /* 38 M_FILEPROC */
 370         { SOS(filedesc),        KMZ_CREATEZONE },       /* 39 M_FILEDESC */
 371         { SOX(lockf),   KMZ_CREATEZONE },       /* 40 M_LOCKF */
 372         { SOS(proc),    KMZ_CREATEZONE },       /* 41 M_PROC */
 373         { SOS(pstats),  KMZ_CREATEZONE },       /* 42 M_PSTATS */
 374         { 0,            KMZ_MALLOC },           /* 43 M_SEGMENT */
 375         { M_FFSNODE,    KMZ_SHAREZONE },        /* 44 M_LFSNODE */
 376 #if FFS
 377         { SOS(inode),   KMZ_CREATEZONE },       /* 45 M_FFSNODE */
 378 #else
 379         { 0,            KMZ_MALLOC },           /* 45 M_FFSNODE */
 380 #endif
 381         { M_FFSNODE,    KMZ_SHAREZONE },        /* 46 M_MFSNODE */
 382         { 0,            KMZ_MALLOC },           /* 47 M_NQLEASE */
 383         { 0,            KMZ_MALLOC },           /* 48 M_NQMHOST */
 384         { 0,            KMZ_MALLOC },           /* 49 M_NETADDR */
 385 #if (NFSCLIENT || NFSSERVER)
 386         { SOX(nfsrv_sock),
 387                         KMZ_CREATEZONE },       /* 50 M_NFSSVC */
 388         { 0,            KMZ_MALLOC },           /* 51 M_NFSUID */
 389         { SOX(nfsrvcache),
 390                         KMZ_CREATEZONE },       /* 52 M_NFSD */
 391 #else
 392         { 0,            KMZ_MALLOC },           /* 50 M_NFSSVC */
 393         { 0,            KMZ_MALLOC },           /* 51 M_NFSUID */
 394         { 0,            KMZ_MALLOC },           /* 52 M_NFSD */
 395 #endif
 396         { SOX(ip_moptions),
 397                         KMZ_LOOKUPZONE },       /* 53 M_IPMOPTS */
 398         { SOX(in_multi),        KMZ_LOOKUPZONE },       /* 54 M_IPMADDR */
 399         { SOX(ether_multi),
 400                         KMZ_LOOKUPZONE },       /* 55 M_IFMADDR */
 401         { SOX(mrt),     KMZ_CREATEZONE },       /* 56 M_MRTABLE */
 402 #if CD9660
 403         { SOX(iso_mnt), KMZ_LOOKUPZONE },       /* 57 M_ISOFSMNT */
 404         { SOS(iso_node),        KMZ_CREATEZONE },       /* 58 M_ISOFSNODE */
 405 #else
 406         { 0,            KMZ_MALLOC },           /* 57 M_ISOFSMNT */
 407         { 0,            KMZ_MALLOC },           /* 58 M_ISOFSNODE */
 408 #endif
 409 #if (NFSCLIENT || NFSSERVER)
 410         { SOS(nfsrv_descript),
 411                         KMZ_CREATEZONE },       /* 59 M_NFSRVDESC */
 412         { SOS(nfsdmap), KMZ_CREATEZONE },       /* 60 M_NFSDIROFF */
 413         { SOS(fhandle), KMZ_LOOKUPZONE },       /* 61 M_NFSBIGFH */
 414 #else
 415         { 0,            KMZ_MALLOC },           /* 59 M_NFSRVDESC */
 416         { 0,            KMZ_MALLOC },           /* 60 M_NFSDIROFF */
 417         { 0,            KMZ_MALLOC },           /* 61 M_NFSBIGFH */
 418 #endif
 419         { 0,            KMZ_MALLOC },           /* 62 M_MSDOSFSMNT */
 420         { 0,            KMZ_MALLOC },           /* 63 M_MSDOSFSFAT */
 421         { 0,            KMZ_MALLOC },           /* 64 M_MSDOSFSNODE */
 422         { SOS(tty),     KMZ_CREATEZONE },       /* 65 M_TTYS */
 423         { 0,            KMZ_MALLOC },           /* 66 M_EXEC */
 424         { 0,            KMZ_MALLOC },           /* 67 M_MISCFSMNT */
 425         { 0,            KMZ_MALLOC },           /* 68 M_MISCFSNODE */
 426         { 0,            KMZ_MALLOC },           /* 69 M_ADOSFSMNT */
 427         { 0,            KMZ_MALLOC },           /* 70 M_ADOSFSNODE */
 428         { 0,            KMZ_MALLOC },           /* 71 M_ANODE */
 429         { SOX(buf),     KMZ_CREATEZONE },       /* 72 M_BUFHDR */
 430         { (NDFILE * OFILESIZE),
 431                         KMZ_CREATEZONE },       /* 73 M_OFILETABL */
 432         { MCLBYTES,     KMZ_CREATEZONE },       /* 74 M_MCLUST */
 433 #if HFS
 434         { SOX(hfsmount),        KMZ_LOOKUPZONE },       /* 75 M_HFSMNT */
 435         { SOS(cnode),   KMZ_CREATEZONE },       /* 76 M_HFSNODE */
 436         { SOS(filefork),        KMZ_CREATEZONE },       /* 77 M_HFSFORK */
 437 #else
 438         { 0,            KMZ_MALLOC },           /* 75 M_HFSMNT */
 439         { 0,            KMZ_MALLOC },           /* 76 M_HFSNODE */
 440         { 0,            KMZ_MALLOC },           /* 77 M_HFSFORK */
 441 #endif
 442         { 0,            KMZ_MALLOC },           /* 78 M_ZFSMNT */
 443         { 0,            KMZ_MALLOC },           /* 79 M_ZFSNODE */
 444         { 0,            KMZ_MALLOC },           /* 80 M_TEMP */
 445         { 0,            KMZ_MALLOC },           /* 81 M_SECA */
 446         { 0,            KMZ_MALLOC },           /* 82 M_DEVFS */
 447         { 0,            KMZ_MALLOC },           /* 83 M_IPFW */
 448         { 0,            KMZ_MALLOC },           /* 84 M_UDFNODE */
 449         { 0,            KMZ_MALLOC },           /* 85 M_UDFMOUNT */
 450         { 0,            KMZ_MALLOC },           /* 86 M_IP6NDP */
 451         { 0,            KMZ_MALLOC },           /* 87 M_IP6OPT */
 452         { 0,            KMZ_MALLOC },           /* 88 M_IP6MISC */
 453         { 0,            KMZ_MALLOC },           /* 89 M_TSEGQ */
 454         { 0,            KMZ_MALLOC },           /* 90 M_IGMP */
 455 #if JOURNALING
 456         { SOS(journal), KMZ_CREATEZONE },       /* 91 M_JNL_JNL */
 457         { SOS(transaction), KMZ_CREATEZONE },   /* 92 M_JNL_TR */
 458 #else
 459         { 0,     KMZ_MALLOC },          /* 91 M_JNL_JNL */
 460         { 0,     KMZ_MALLOC },          /* 92 M_JNL_TR */
 461 #endif
 462         { SOS(specinfo), KMZ_CREATEZONE },      /* 93 M_SPECINFO */
 463         { SOS(kqueue), KMZ_CREATEZONE },        /* 94 M_KQUEUE */
 464 #if HFS
 465         { SOS(directoryhint), KMZ_CREATEZONE }, /* 95 M_HFSDIRHINT */
 466 #else
 467         { 0,    KMZ_MALLOC },           /* 95 M_HFSDIRHINT */
 468 #endif
 469         { SOS(cl_readahead),  KMZ_CREATEZONE }, /* 96 M_CLRDAHEAD */
 470         { SOS(cl_writebehind),KMZ_CREATEZONE }, /* 97 M_CLWRBEHIND */
 471         { SOS(iovec_64),        KMZ_LOOKUPZONE },       /* 98 M_IOV64 */
 472         { SOS(fileglob),        KMZ_CREATEZONE },       /* 99 M_FILEGLOB */
 473         { 0,            KMZ_MALLOC },           /* 100 M_KAUTH */
 474         { 0,            KMZ_MALLOC },           /* 101 M_DUMMYNET */
 475         { SOS(unsafe_fsnode),KMZ_CREATEZONE },  /* 102 M_UNSAFEFS */
 476         { 0,            KMZ_MALLOC },           /* 103 M_MACPIPELABEL */
 477         { 0,            KMZ_MALLOC },           /* 104 M_MACTEMP */
 478         { 0,            KMZ_MALLOC },           /* 105 M_SBUF */
 479         { 0,            KMZ_MALLOC },           /* 106 M_HFS_EXTATTR */
 480         { 0,            KMZ_MALLOC },           /* 107 M_LCTX */
 481         { 0,            KMZ_MALLOC },           /* 108 M_TRAFFIC_MGT */
 482 #undef  SOS
 483 #undef  SOX
 484 };
 485
 486 extern zone_t kalloc_zone(vm_size_t);   /* XXX */
 487
 488 /*
 489  * Initialize the kernel memory allocator
 490  */
 491 void
 492 kmeminit(void)
 493 {
 494         struct kmzones  *kmz;
 495
 496         if ((sizeof(kmzones)/sizeof(kmzones[0])) != (sizeof(memname)/sizeof(memname[0]))) {
 497                 panic("kmeminit: kmzones has %lu elements but memname has %lu\n",
 498                           (sizeof(kmzones)/sizeof(kmzones[0])), (sizeof(memname)/sizeof(memname[0])));
 499         }
 500
 501         kmz = kmzones;
 502         while (kmz < &kmzones[M_LAST]) {
 503 /* XXX */
 504                 if (kmz->kz_elemsize == (size_t)(-1))
 505                         ;
 506                 else
 507 /* XXX */
 508                 if (kmz->kz_zalloczone == KMZ_CREATEZONE) {
 509                         kmz->kz_zalloczone = zinit(kmz->kz_elemsize,
 510                                                 1024 * 1024, PAGE_SIZE,
 511                                                 memname[kmz - kmzones]);
 512                 }
 513                 else if (kmz->kz_zalloczone == KMZ_LOOKUPZONE)
 514                         kmz->kz_zalloczone = kalloc_zone(kmz->kz_elemsize);
 515
 516                 kmz++;
 517         }
 518
 519         kmz = kmzones;
 520         while (kmz < &kmzones[M_LAST]) {
 521 /* XXX */
 522                 if (kmz->kz_elemsize == (size_t)(-1))
 523                         ;
 524                 else
 525 /* XXX */
 526                 if (kmz->kz_zalloczone == KMZ_SHAREZONE) {
 527                         kmz->kz_zalloczone =
 528                                 kmzones[kmz->kz_elemsize].kz_zalloczone;
 529                         kmz->kz_elemsize =
 530                                 kmzones[kmz->kz_elemsize].kz_elemsize;
 531                 }
 532
 533                 kmz++;
 534         }
 535 }
 536
 537 #define MDECL(reqlen)                                   \
 538 union {                                                 \
 539         struct  _mhead hdr;                             \
 540         char    _m[(reqlen) + sizeof (struct _mhead)];  \
 541 }
 542
 543 struct _mhead {
 544         size_t  mlen;
 545         char    dat[0];
 546 };
 547
 548 void *
 549 _MALLOC(
 550         size_t          size,
 551         int             type,
 552         int             flags)
 553 {
 554         MDECL(size)     *mem;
 555         size_t          memsize = sizeof (*mem);
 556
 557         if (type >= M_LAST)
 558                 panic("_malloc TYPE");
 559
 560         if (size == 0)
 561                 return (NULL);
 562
 563         if (flags & M_NOWAIT) {
 564                 mem = (void *)kalloc_noblock(memsize);
 565         } else {
 566                 mem = (void *)kalloc(memsize);
 567         }
 568         if (!mem)
 569                 return (0);
 570
 571         mem->hdr.mlen = memsize;
 572
 573         if (flags & M_ZERO)
 574                 bzero(mem->hdr.dat, size);
 575
 576         return  (mem->hdr.dat);
 577 }
 578
 579 void
 580 _FREE(
 581         void            *addr,
 582         int             type)
 583 {
 584         struct _mhead   *hdr;
 585
 586         if (type >= M_LAST)
 587                 panic("_free TYPE");
 588
 589         if (!addr)
 590                 return; /* correct (convenient bsd kernel legacy) */
 591
 592         hdr = addr; hdr--;
 593         kfree(hdr, hdr->mlen);
 594 }
 595
 596 void *
 597 _MALLOC_ZONE(
 598         size_t          size,
 599         int             type,
 600         int             flags)
 601 {
 602         struct kmzones  *kmz;
 603         void            *elem;
 604
 605         if (type >= M_LAST)
 606                 panic("_malloc_zone TYPE");
 607
 608         kmz = &kmzones[type];
 609         if (kmz->kz_zalloczone == KMZ_MALLOC)
 610                 panic("_malloc_zone ZONE: type = %d", type);
 611
 612 /* XXX */
 613         if (kmz->kz_elemsize == (size_t)(-1))
 614                 panic("_malloc_zone XXX");
 615 /* XXX */
 616         if (size == kmz->kz_elemsize)
 617                 if (flags & M_NOWAIT) {
 618                         elem = (void *)zalloc_noblock(kmz->kz_zalloczone);
 619                 } else {
 620                         elem = (void *)zalloc(kmz->kz_zalloczone);
 621                 }
 622         else
 623                 if (flags & M_NOWAIT) {
 624                         elem = (void *)kalloc_noblock(size);
 625                 } else {
 626                         elem = (void *)kalloc(size);
 627                 }
 628
 629         return (elem);
 630 }
 631
 632 void
 633 _FREE_ZONE(
 634         void            *elem,
 635         size_t          size,
 636         int             type)
 637 {
 638         struct kmzones  *kmz;
 639
 640         if (type >= M_LAST)
 641                 panic("FREE_SIZE");
 642
 643         kmz = &kmzones[type];
 644         if (kmz->kz_zalloczone == KMZ_MALLOC)
 645                 panic("free_zone ZONE");
 646
 647 /* XXX */
 648         if (kmz->kz_elemsize == (size_t)(-1))
 649                 panic("FREE_SIZE XXX");
 650 /* XXX */
 651         if (size == kmz->kz_elemsize)
 652                 zfree(kmz->kz_zalloczone, elem);
 653         else
 654                 kfree(elem, size);
 655 }