[apple/xnu.git] / bsd / kern / kern_malloc.c

/*
 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1987, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)kern_malloc.c	8.4 (Berkeley) 5/20/95
 */

#include <sys/param.h>
#include <sys/malloc.h>

#include <sys/socket.h>
#include <sys/socketvar.h>

#include <net/route.h>

#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/in_pcb.h>

#include <sys/event.h>
#include <sys/eventvar.h>

#include <sys/proc_internal.h>
#include <sys/mount_internal.h>
#include <sys/vnode_internal.h>
#include <sys/ubc_internal.h>
#include <sys/namei.h>
#include <sys/file_internal.h>
#include <sys/filedesc.h>
#include <sys/tty.h>
#include <sys/quota.h>
#include <sys/uio_internal.h>

#include <ufs/ufs/inode.h>

#include <hfs/hfs_cnode.h>
#include <isofs/cd9660/cd9660_node.h>

#include <miscfs/volfs/volfs.h>
#include <miscfs/specfs/specdev.h>

#include <nfs/rpcv2.h>
#include <nfs/nfsproto.h>
#include <nfs/nfsnode.h>
#include <nfs/nfsmount.h>

#include <vfs/vfs_journal.h>

#include <mach/mach_types.h>

#include <kern/zalloc.h>
#include <kern/kalloc.h>

struct kmemstats kmemstats[M_LAST];
char *memname[] = INITKMEMNAMES;

struct kmzones {
	size_t		kz_elemsize;
	void		*kz_zalloczone;
#define	KMZ_CREATEZONE		((void *)-2)
#define KMZ_LOOKUPZONE		((void *)-1)
#define KMZ_MALLOC		((void *)0)
#define	KMZ_SHAREZONE		((void *)1)
} kmzones[M_LAST] = {
#define	SOS(sname)	sizeof (struct sname)
#define SOX(sname)	-1
	-1,		0,			/* 0 M_FREE */
	MSIZE,		KMZ_CREATEZONE,		/* 1 M_MBUF */
	0,		KMZ_MALLOC,		/* 2 M_DEVBUF */
	SOS(socket),	KMZ_CREATEZONE,		/* 3 M_SOCKET */
	SOS(inpcb),	KMZ_LOOKUPZONE,		/* 4 M_PCB */
	M_MBUF,		KMZ_SHAREZONE,		/* 5 M_RTABLE */
	M_MBUF,		KMZ_SHAREZONE,		/* 6 M_HTABLE */
	M_MBUF,		KMZ_SHAREZONE,		/* 7 M_FTABLE */
	SOS(rusage),	KMZ_CREATEZONE,		/* 8 M_ZOMBIE */
	0,		KMZ_MALLOC,		/* 9 M_IFADDR */
	M_MBUF,		KMZ_SHAREZONE,		/* 10 M_SOOPTS */
	0,		KMZ_MALLOC,		/* 11 M_SONAME */
	MAXPATHLEN,	KMZ_CREATEZONE,		/* 12 M_NAMEI */
	0,		KMZ_MALLOC,		/* 13 M_GPROF */
	0,		KMZ_MALLOC,		/* 14 M_IOCTLOPS */
	0,		KMZ_MALLOC,		/* 15 M_MAPMEM */
	SOS(ucred),	KMZ_CREATEZONE,		/* 16 M_CRED */
	SOS(pgrp),	KMZ_CREATEZONE,		/* 17 M_PGRP */
	SOS(session),	KMZ_CREATEZONE,		/* 18 M_SESSION */
	SOS(iovec_32),	KMZ_LOOKUPZONE,		/* 19 M_IOV32 */
	SOS(mount),	KMZ_CREATEZONE,		/* 20 M_MOUNT */
	0,		KMZ_MALLOC,		/* 21 M_FHANDLE */
	SOS(nfsreq),	KMZ_CREATEZONE,		/* 22 M_NFSREQ */
	SOS(nfsmount),	KMZ_CREATEZONE,		/* 23 M_NFSMNT */
	SOS(nfsnode),	KMZ_CREATEZONE,		/* 24 M_NFSNODE */
	SOS(vnode),	KMZ_CREATEZONE,		/* 25 M_VNODE */
	SOS(namecache),	KMZ_CREATEZONE,		/* 26 M_CACHE */
	SOX(dquot),	KMZ_LOOKUPZONE,		/* 27 M_DQUOT */
	SOX(ufsmount),	KMZ_LOOKUPZONE,		/* 28 M_UFSMNT */
	0,		KMZ_MALLOC,		/* 29 M_CGSUM */
	0,		KMZ_MALLOC,		/* 30 M_VMMAP */
	0,		KMZ_MALLOC,		/* 31 M_VMMAPENT */
	0,		KMZ_MALLOC,		/* 32 M_VMOBJ */
	0,		KMZ_MALLOC,		/* 33 M_VMOBJHASH */
	0,		KMZ_MALLOC,		/* 34 M_VMPMAP */
	0,		KMZ_MALLOC,		/* 35 M_VMPVENT */
	0,		KMZ_MALLOC,		/* 36 M_VMPAGER */
	0,		KMZ_MALLOC,		/* 37 M_VMPGDATA */
	SOS(fileproc),	KMZ_CREATEZONE,		/* 38 M_FILEPROC */
	SOS(filedesc),	KMZ_CREATEZONE,		/* 39 M_FILEDESC */
	SOX(lockf),	KMZ_CREATEZONE,		/* 40 M_LOCKF */
	SOS(proc),	KMZ_CREATEZONE,		/* 41 M_PROC */
	SOS(pstats),	KMZ_CREATEZONE,		/* 42 M_SUBPROC */
	0,		KMZ_MALLOC,		/* 43 M_SEGMENT */
	M_FFSNODE,	KMZ_SHAREZONE,		/* 44 M_LFSNODE */
	SOS(inode),	KMZ_CREATEZONE,		/* 45 M_FFSNODE */
	M_FFSNODE,	KMZ_SHAREZONE,		/* 46 M_MFSNODE */
	0,		KMZ_MALLOC,		/* 47 M_NQLEASE */
	0,		KMZ_MALLOC,		/* 48 M_NQMHOST */
	0,		KMZ_MALLOC,		/* 49 M_NETADDR */
	SOX(nfssvc_sock),
			KMZ_CREATEZONE,		/* 50 M_NFSSVC */
	SOS(nfsuid),	KMZ_CREATEZONE,		/* 51 M_NFSUID */
	SOX(nfsrvcache),
			KMZ_CREATEZONE,		/* 52 M_NFSD */
	SOX(ip_moptions),
			KMZ_LOOKUPZONE,		/* 53 M_IPMOPTS */
	SOX(in_multi),	KMZ_LOOKUPZONE,		/* 54 M_IPMADDR */
	SOX(ether_multi),
			KMZ_LOOKUPZONE,		/* 55 M_IFMADDR */
	SOX(mrt),	KMZ_CREATEZONE,		/* 56 M_MRTABLE */
	SOX(iso_mnt),	KMZ_LOOKUPZONE,		/* 57 M_ISOFSMNT */
	SOS(iso_node),	KMZ_CREATEZONE,		/* 58 M_ISOFSNODE */
	SOS(nfsrv_descript),
			KMZ_CREATEZONE,		/* 59 M_NFSRVDESC */
	SOS(nfsdmap),	KMZ_CREATEZONE,		/* 60 M_NFSDIROFF */
	SOS(fhandle),	KMZ_LOOKUPZONE,		/* 61 M_NFSBIGFH */
	0,		KMZ_MALLOC,		/* 62 M_MSDOSFSMNT */
	0,		KMZ_MALLOC,		/* 63 M_MSDOSFSFAT */
	0,		KMZ_MALLOC,		/* 64 M_MSDOSFSNODE */
	SOS(tty),	KMZ_CREATEZONE,		/* 65 M_TTYS */
	0,		KMZ_MALLOC,		/* 66 M_EXEC */
	0,		KMZ_MALLOC,		/* 67 M_MISCFSMNT */
	0,		KMZ_MALLOC,		/* 68 M_MISCFSNODE */
	0,		KMZ_MALLOC,		/* 69 M_ADOSFSMNT */
	0,		KMZ_MALLOC,		/* 70 M_ADOSFSNODE */
	0,		KMZ_MALLOC,		/* 71 M_ANODE */
	SOX(buf),	KMZ_CREATEZONE,		/* 72 M_BUFHDR */
	(NDFILE * OFILESIZE),
			KMZ_CREATEZONE,		/* 73 M_OFILETABL */
	MCLBYTES,	KMZ_CREATEZONE,		/* 74 M_MCLUST */
	SOX(hfsmount),	KMZ_LOOKUPZONE,		/* 75 M_HFSMNT */
	SOS(cnode),	KMZ_CREATEZONE,		/* 76 M_HFSNODE */
	SOS(filefork),	KMZ_CREATEZONE,		/* 77 M_HFSFORK */
	SOX(volfs_mntdata),	KMZ_LOOKUPZONE,		/* 78 M_VOLFSMNT */
	SOS(volfs_vndata),	KMZ_CREATEZONE,		/* 79 M_VOLFSNODE */
	0,		KMZ_MALLOC,		/* 80 M_TEMP */
	0,		KMZ_MALLOC,		/* 81 M_SECA */
	0,		KMZ_MALLOC,		/* 82 M_DEVFS */
	0,		KMZ_MALLOC,		/* 83 M_IPFW */
	0,		KMZ_MALLOC,		/* 84 M_UDFNODE */
	0,		KMZ_MALLOC,		/* 85 M_UDFMOUNT */
	0,		KMZ_MALLOC,		/* 86 M_IP6NDP */
	0,		KMZ_MALLOC,		/* 87 M_IP6OPT */
	0,		KMZ_MALLOC,		/* 88 M_IP6MISC */
	0,		KMZ_MALLOC,		/* 89 M_TSEGQ */
	0,		KMZ_MALLOC,		/* 90 M_IGMP */
	SOS(journal), KMZ_CREATEZONE,     /* 91 M_JNL_JNL */
	SOS(transaction), KMZ_CREATEZONE,     /* 92 M_JNL_TR */
	SOS(specinfo), KMZ_CREATEZONE,		/* 93 M_SPECINFO */
	SOS(kqueue), KMZ_CREATEZONE,		/* 94 M_KQUEUE */
	SOS(directoryhint), KMZ_CREATEZONE,	/* 95 M_HFSDIRHINT */
	SOS(cl_readahead),  KMZ_CREATEZONE,	/* 96 M_CLRDAHEAD */
	SOS(cl_writebehind),KMZ_CREATEZONE,	/* 97 M_CLWRBEHIND */
	SOS(iovec_64),	KMZ_LOOKUPZONE,		/* 98 M_IOV64 */
	SOS(fileglob),	KMZ_CREATEZONE,		/* 99 M_FILEGLOB */
	0,		KMZ_MALLOC,		/* 100 M_KAUTH */
	0,		KMZ_MALLOC,		/* 101 M_DUMMYNET */
	SOS(unsafe_fsnode),KMZ_CREATEZONE,	/* 102 M_UNSAFEFS */
#undef	SOS
#undef	SOX
};

extern zone_t kalloc_zone(vm_size_t);	/* XXX */

/*
 * Initialize the kernel memory allocator
 */
void
kmeminit(void)
{
	struct kmzones	*kmz;

	if ((sizeof(kmzones)/sizeof(kmzones[0])) != (sizeof(memname)/sizeof(memname[0]))) {
		panic("kmeminit: kmzones has %d elements but memname has %d\n",
			  (sizeof(kmzones)/sizeof(kmzones[0])), (sizeof(memname)/sizeof(memname[0])));
	}

	kmz = kmzones;
	while (kmz < &kmzones[M_LAST]) {
/* XXX */
		if (kmz->kz_elemsize == -1)
			;
		else
/* XXX */
		if (kmz->kz_zalloczone == KMZ_CREATEZONE) {
			kmz->kz_zalloczone = zinit(kmz->kz_elemsize,
						1024 * 1024, PAGE_SIZE,
						memname[kmz - kmzones]);
		}
		else if (kmz->kz_zalloczone == KMZ_LOOKUPZONE)
			kmz->kz_zalloczone = kalloc_zone(kmz->kz_elemsize);

		kmz++;
	}

	kmz = kmzones;
	while (kmz < &kmzones[M_LAST]) {
/* XXX */
		if (kmz->kz_elemsize == -1)
			;
		else
/* XXX */
		if (kmz->kz_zalloczone == KMZ_SHAREZONE) {
			kmz->kz_zalloczone =
				kmzones[kmz->kz_elemsize].kz_zalloczone;
			kmz->kz_elemsize =
				kmzones[kmz->kz_elemsize].kz_elemsize;
		}

		kmz++;
	}
}

#define	MDECL(reqlen)					\
union {							\
	struct	_mhead hdr;				\
	char	_m[(reqlen) + sizeof (struct _mhead)];	\
}

struct _mhead {
	size_t	mlen;
	char	dat[0];
};

#define ZEROSIZETOKEN (void *)0xFADEDFAD

void *
_MALLOC(
	size_t		size,
	int		type,
	int		flags)
{
	MDECL(size)	*mem;
	size_t		memsize = sizeof (*mem);

	if (type >= M_LAST)
		panic("_malloc TYPE");

	/*
	 * On zero request we do not return zero as that
	 * could be mistaken for ENOMEM.
	 */
	if (size == 0)
		return (ZEROSIZETOKEN);

	if (flags & M_NOWAIT) {
		mem = (void *)kalloc_noblock(memsize);
	} else {
		mem = (void *)kalloc(memsize);
	}
	if (!mem)
		return (0);

	mem->hdr.mlen = memsize;

	if (flags & M_ZERO)
		bzero(mem->hdr.dat, size);

	return  (mem->hdr.dat);
}

void
_FREE(
	void		*addr,
	int		type)
{
	struct _mhead	*hdr;

	if (type >= M_LAST)
		panic("_free TYPE");

	if (addr == (void *)ZEROSIZETOKEN)
		return;
	if (!addr)
		return; /* correct (convenient bsd kernel legacy) */

	hdr = addr; hdr--;
	kfree(hdr, hdr->mlen);
}

void *
_MALLOC_ZONE(
	size_t		size,
	int		type,
	int		flags)
{
	struct kmzones	*kmz;
	void		*elem;

	if (type >= M_LAST)
		panic("_malloc_zone TYPE");

	kmz = &kmzones[type];
	if (kmz->kz_zalloczone == KMZ_MALLOC)
		panic("_malloc_zone ZONE: type = %d", type);

/* XXX */
	if (kmz->kz_elemsize == -1)
		panic("_malloc_zone XXX");
/* XXX */
	if (size == kmz->kz_elemsize)
		if (flags & M_NOWAIT) {
	  		elem = (void *)zalloc_noblock(kmz->kz_zalloczone);
		} else {
	  		elem = (void *)zalloc(kmz->kz_zalloczone);
		}
	else
		if (flags & M_NOWAIT) {
			elem = (void *)kalloc_noblock(size);
		} else {
			elem = (void *)kalloc(size);
		}

	return (elem);
}

void
_FREE_ZONE(
	void		*elem,
	size_t		size,
	int		type)
{
	struct kmzones	*kmz;

	if (type >= M_LAST)
		panic("FREE_SIZE");

	kmz = &kmzones[type];
	if (kmz->kz_zalloczone == KMZ_MALLOC)
		panic("free_zone ZONE");

/* XXX */
	if (kmz->kz_elemsize == -1)
		panic("FREE_SIZE XXX");
/* XXX */
	if (size == kmz->kz_elemsize)
		zfree(kmz->kz_zalloczone, elem);
	else
		kfree(elem, size);
}
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
6601e61a	4	* @APPLE_LICENSE_HEADER_START@
1c79356b	5	*
6601e61a A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
8f6c56a5	11	*
6601e61a A	12	* This Original Code and all software distributed under the License are
6601e61a A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
6601e61a A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
8f6c56a5	19	*
6601e61a	20	* @APPLE_LICENSE_HEADER_END@
1c79356b A	21	*/
	22	/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
	23	/*
	24	* Copyright (c) 1987, 1991, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* Redistribution and use in source and binary forms, with or without
	28	* modification, are permitted provided that the following conditions
	29	* are met:
	30	* 1. Redistributions of source code must retain the above copyright
	31	* notice, this list of conditions and the following disclaimer.
	32	* 2. Redistributions in binary form must reproduce the above copyright
	33	* notice, this list of conditions and the following disclaimer in the
	34	* documentation and/or other materials provided with the distribution.
	35	* 3. All advertising materials mentioning features or use of this software
	36	* must display the following acknowledgement:
	37	* This product includes software developed by the University of
	38	* California, Berkeley and its contributors.
	39	* 4. Neither the name of the University nor the names of its contributors
	40	* may be used to endorse or promote products derived from this software
	41	* without specific prior written permission.
	42	*
	43	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	44	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	45	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	46	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	47	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	48	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	49	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	50	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	51	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	52	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	53	* SUCH DAMAGE.
	54	*
	55	* @(#)kern_malloc.c 8.4 (Berkeley) 5/20/95
	56	*/
	57
	58	#include <sys/param.h>
	59	#include <sys/malloc.h>
	60
	61	#include <sys/socket.h>
	62	#include <sys/socketvar.h>
	63
	64	#include <net/route.h>
	65
	66	#include <netinet/in.h>
	67	#include <netinet/in_systm.h>
	68	#include <netinet/ip.h>
	69	#include <netinet/in_pcb.h>
	70
55e303ae A	71	#include <sys/event.h>
	72	#include <sys/eventvar.h>
	73
91447636 A	74	#include <sys/proc_internal.h>
	75	#include <sys/mount_internal.h>
	76	#include <sys/vnode_internal.h>
	77	#include <sys/ubc_internal.h>
1c79356b	78	#include <sys/namei.h>
91447636	79	#include <sys/file_internal.h>
1c79356b A	80	#include <sys/filedesc.h>
1c79356b A	81	#include <sys/tty.h>
9bccf70c	82	#include <sys/quota.h>
91447636	83	#include <sys/uio_internal.h>
1c79356b	84
1c79356b A	85	#include <ufs/ufs/inode.h>
1c79356b A	86
9bccf70c	87	#include <hfs/hfs_cnode.h>
1c79356b A	88	#include <isofs/cd9660/cd9660_node.h>
	89
	90	#include <miscfs/volfs/volfs.h>
55e303ae	91	#include <miscfs/specfs/specdev.h>
1c79356b A	92
	93	#include <nfs/rpcv2.h>
	94	#include <nfs/nfsproto.h>
	95	#include <nfs/nfsnode.h>
	96	#include <nfs/nfsmount.h>
1c79356b	97
d7e50217 A	98	#include <vfs/vfs_journal.h>
d7e50217 A	99
1c79356b A	100	#include <mach/mach_types.h>
	101
	102	#include <kern/zalloc.h>
	103	#include <kern/kalloc.h>
	104
	105	struct kmemstats kmemstats[M_LAST];
	106	char *memname[] = INITKMEMNAMES;
	107
	108	struct kmzones {
	109	size_t kz_elemsize;
	110	void *kz_zalloczone;
	111	#define KMZ_CREATEZONE ((void *)-2)
	112	#define KMZ_LOOKUPZONE ((void *)-1)
	113	#define KMZ_MALLOC ((void *)0)
	114	#define KMZ_SHAREZONE ((void *)1)
	115	} kmzones[M_LAST] = {
	116	#define SOS(sname) sizeof (struct sname)
	117	#define SOX(sname) -1
	118	-1, 0, /* 0 M_FREE */
	119	MSIZE, KMZ_CREATEZONE, /* 1 M_MBUF */
	120	0, KMZ_MALLOC, /* 2 M_DEVBUF */
	121	SOS(socket), KMZ_CREATEZONE, /* 3 M_SOCKET */
	122	SOS(inpcb), KMZ_LOOKUPZONE, /* 4 M_PCB */
	123	M_MBUF, KMZ_SHAREZONE, /* 5 M_RTABLE */
	124	M_MBUF, KMZ_SHAREZONE, /* 6 M_HTABLE */
	125	M_MBUF, KMZ_SHAREZONE, /* 7 M_FTABLE */
	126	SOS(rusage), KMZ_CREATEZONE, /* 8 M_ZOMBIE */
	127	0, KMZ_MALLOC, /* 9 M_IFADDR */
	128	M_MBUF, KMZ_SHAREZONE, /* 10 M_SOOPTS */
	129	0, KMZ_MALLOC, /* 11 M_SONAME */
	130	MAXPATHLEN, KMZ_CREATEZONE, /* 12 M_NAMEI */
	131	0, KMZ_MALLOC, /* 13 M_GPROF */
	132	0, KMZ_MALLOC, /* 14 M_IOCTLOPS */
	133	0, KMZ_MALLOC, /* 15 M_MAPMEM */
	134	SOS(ucred), KMZ_CREATEZONE, /* 16 M_CRED */
	135	SOS(pgrp), KMZ_CREATEZONE, /* 17 M_PGRP */
	136	SOS(session), KMZ_CREATEZONE, /* 18 M_SESSION */
91447636	137	SOS(iovec_32), KMZ_LOOKUPZONE, /* 19 M_IOV32 */
1c79356b A	138	SOS(mount), KMZ_CREATEZONE, /* 20 M_MOUNT */
	139	0, KMZ_MALLOC, /* 21 M_FHANDLE */
	140	SOS(nfsreq), KMZ_CREATEZONE, /* 22 M_NFSREQ */
	141	SOS(nfsmount), KMZ_CREATEZONE, /* 23 M_NFSMNT */
	142	SOS(nfsnode), KMZ_CREATEZONE, /* 24 M_NFSNODE */
	143	SOS(vnode), KMZ_CREATEZONE, /* 25 M_VNODE */
	144	SOS(namecache), KMZ_CREATEZONE, /* 26 M_CACHE */
	145	SOX(dquot), KMZ_LOOKUPZONE, /* 27 M_DQUOT */
	146	SOX(ufsmount), KMZ_LOOKUPZONE, /* 28 M_UFSMNT */
	147	0, KMZ_MALLOC, /* 29 M_CGSUM */
	148	0, KMZ_MALLOC, /* 30 M_VMMAP */
	149	0, KMZ_MALLOC, /* 31 M_VMMAPENT */
	150	0, KMZ_MALLOC, /* 32 M_VMOBJ */
	151	0, KMZ_MALLOC, /* 33 M_VMOBJHASH */
	152	0, KMZ_MALLOC, /* 34 M_VMPMAP */
	153	0, KMZ_MALLOC, /* 35 M_VMPVENT */
	154	0, KMZ_MALLOC, /* 36 M_VMPAGER */
	155	0, KMZ_MALLOC, /* 37 M_VMPGDATA */
91447636	156	SOS(fileproc), KMZ_CREATEZONE, /* 38 M_FILEPROC */
1c79356b A	157	SOS(filedesc), KMZ_CREATEZONE, /* 39 M_FILEDESC */
	158	SOX(lockf), KMZ_CREATEZONE, /* 40 M_LOCKF */
	159	SOS(proc), KMZ_CREATEZONE, /* 41 M_PROC */
91447636	160	SOS(pstats), KMZ_CREATEZONE, /* 42 M_SUBPROC */
1c79356b A	161	0, KMZ_MALLOC, /* 43 M_SEGMENT */
	162	M_FFSNODE, KMZ_SHAREZONE, /* 44 M_LFSNODE */
	163	SOS(inode), KMZ_CREATEZONE, /* 45 M_FFSNODE */
	164	M_FFSNODE, KMZ_SHAREZONE, /* 46 M_MFSNODE */
91447636 A	165	0, KMZ_MALLOC, /* 47 M_NQLEASE */
91447636 A	166	0, KMZ_MALLOC, /* 48 M_NQMHOST */
1c79356b A	167	0, KMZ_MALLOC, /* 49 M_NETADDR */
	168	SOX(nfssvc_sock),
	169	KMZ_CREATEZONE, /* 50 M_NFSSVC */
	170	SOS(nfsuid), KMZ_CREATEZONE, /* 51 M_NFSUID */
	171	SOX(nfsrvcache),
	172	KMZ_CREATEZONE, /* 52 M_NFSD */
	173	SOX(ip_moptions),
	174	KMZ_LOOKUPZONE, /* 53 M_IPMOPTS */
	175	SOX(in_multi), KMZ_LOOKUPZONE, /* 54 M_IPMADDR */
	176	SOX(ether_multi),
	177	KMZ_LOOKUPZONE, /* 55 M_IFMADDR */
	178	SOX(mrt), KMZ_CREATEZONE, /* 56 M_MRTABLE */
	179	SOX(iso_mnt), KMZ_LOOKUPZONE, /* 57 M_ISOFSMNT */
	180	SOS(iso_node), KMZ_CREATEZONE, /* 58 M_ISOFSNODE */
	181	SOS(nfsrv_descript),
	182	KMZ_CREATEZONE, /* 59 M_NFSRVDESC */
	183	SOS(nfsdmap), KMZ_CREATEZONE, /* 60 M_NFSDIROFF */
	184	SOS(fhandle), KMZ_LOOKUPZONE, /* 61 M_NFSBIGFH */
	185	0, KMZ_MALLOC, /* 62 M_MSDOSFSMNT */
	186	0, KMZ_MALLOC, /* 63 M_MSDOSFSFAT */
	187	0, KMZ_MALLOC, /* 64 M_MSDOSFSNODE */
	188	SOS(tty), KMZ_CREATEZONE, /* 65 M_TTYS */
	189	0, KMZ_MALLOC, /* 66 M_EXEC */
	190	0, KMZ_MALLOC, /* 67 M_MISCFSMNT */
	191	0, KMZ_MALLOC, /* 68 M_MISCFSNODE */
	192	0, KMZ_MALLOC, /* 69 M_ADOSFSMNT */
	193	0, KMZ_MALLOC, /* 70 M_ADOSFSNODE */
	194	0, KMZ_MALLOC, /* 71 M_ANODE */
	195	SOX(buf), KMZ_CREATEZONE, /* 72 M_BUFHDR */
	196	(NDFILE * OFILESIZE),
	197	KMZ_CREATEZONE, /* 73 M_OFILETABL */
	198	MCLBYTES, KMZ_CREATEZONE, /* 74 M_MCLUST */
	199	SOX(hfsmount), KMZ_LOOKUPZONE, /* 75 M_HFSMNT */
9bccf70c A	200	SOS(cnode), KMZ_CREATEZONE, /* 76 M_HFSNODE */
9bccf70c A	201	SOS(filefork), KMZ_CREATEZONE, /* 77 M_HFSFORK */
1c79356b A	202	SOX(volfs_mntdata), KMZ_LOOKUPZONE, /* 78 M_VOLFSMNT */
	203	SOS(volfs_vndata), KMZ_CREATEZONE, /* 79 M_VOLFSNODE */
	204	0, KMZ_MALLOC, /* 80 M_TEMP */
	205	0, KMZ_MALLOC, /* 81 M_SECA */
	206	0, KMZ_MALLOC, /* 82 M_DEVFS */
	207	0, KMZ_MALLOC, /* 83 M_IPFW */
	208	0, KMZ_MALLOC, /* 84 M_UDFNODE */
	209	0, KMZ_MALLOC, /* 85 M_UDFMOUNT */
	210	0, KMZ_MALLOC, /* 86 M_IP6NDP */
	211	0, KMZ_MALLOC, /* 87 M_IP6OPT */
9bccf70c A	212	0, KMZ_MALLOC, /* 88 M_IP6MISC */
	213	0, KMZ_MALLOC, /* 89 M_TSEGQ */
	214	0, KMZ_MALLOC, /* 90 M_IGMP */
55e303ae	215	SOS(journal), KMZ_CREATEZONE, /* 91 M_JNL_JNL */
d7e50217	216	SOS(transaction), KMZ_CREATEZONE, /* 92 M_JNL_TR */
55e303ae A	217	SOS(specinfo), KMZ_CREATEZONE, /* 93 M_SPECINFO */
55e303ae A	218	SOS(kqueue), KMZ_CREATEZONE, /* 94 M_KQUEUE */
91447636 A	219	SOS(directoryhint), KMZ_CREATEZONE, /* 95 M_HFSDIRHINT */
	220	SOS(cl_readahead), KMZ_CREATEZONE, /* 96 M_CLRDAHEAD */
	221	SOS(cl_writebehind),KMZ_CREATEZONE, /* 97 M_CLWRBEHIND */
	222	SOS(iovec_64), KMZ_LOOKUPZONE, /* 98 M_IOV64 */
	223	SOS(fileglob), KMZ_CREATEZONE, /* 99 M_FILEGLOB */
	224	0, KMZ_MALLOC, /* 100 M_KAUTH */
	225	0, KMZ_MALLOC, /* 101 M_DUMMYNET */
	226	SOS(unsafe_fsnode),KMZ_CREATEZONE, /* 102 M_UNSAFEFS */
1c79356b A	227	#undef SOS
	228	#undef SOX
	229	};
	230
55e303ae	231	extern zone_t kalloc_zone(vm_size_t); /* XXX */
1c79356b A	232
	233	/*
	234	* Initialize the kernel memory allocator
	235	*/
	236	void
	237	kmeminit(void)
	238	{
	239	struct kmzones *kmz;
	240
d7e50217 A	241	if ((sizeof(kmzones)/sizeof(kmzones[0])) != (sizeof(memname)/sizeof(memname[0]))) {
	242	panic("kmeminit: kmzones has %d elements but memname has %d\n",
	243	(sizeof(kmzones)/sizeof(kmzones[0])), (sizeof(memname)/sizeof(memname[0])));
	244	}
	245
1c79356b A	246	kmz = kmzones;
	247	while (kmz < &kmzones[M_LAST]) {
	248	/* XXX */
	249	if (kmz->kz_elemsize == -1)
	250	;
	251	else
	252	/* XXX */
	253	if (kmz->kz_zalloczone == KMZ_CREATEZONE) {
	254	kmz->kz_zalloczone = zinit(kmz->kz_elemsize,
	255	1024 * 1024, PAGE_SIZE,
	256	memname[kmz - kmzones]);
	257	}
	258	else if (kmz->kz_zalloczone == KMZ_LOOKUPZONE)
	259	kmz->kz_zalloczone = kalloc_zone(kmz->kz_elemsize);
	260
	261	kmz++;
	262	}
	263
	264	kmz = kmzones;
	265	while (kmz < &kmzones[M_LAST]) {
	266	/* XXX */
	267	if (kmz->kz_elemsize == -1)
	268	;
	269	else
	270	/* XXX */
	271	if (kmz->kz_zalloczone == KMZ_SHAREZONE) {
	272	kmz->kz_zalloczone =
	273	kmzones[kmz->kz_elemsize].kz_zalloczone;
	274	kmz->kz_elemsize =
	275	kmzones[kmz->kz_elemsize].kz_elemsize;
	276	}
	277
	278	kmz++;
	279	}
	280	}
	281
	282	#define MDECL(reqlen) \
	283	union { \
	284	struct _mhead hdr; \
	285	char _m[(reqlen) + sizeof (struct _mhead)]; \
	286	}
	287
	288	struct _mhead {
	289	size_t mlen;
	290	char dat[0];
	291	};
	292
55e303ae	293	#define ZEROSIZETOKEN (void *)0xFADEDFAD
9bccf70c	294
91447636 A	295	void *
91447636 A	296	_MALLOC(
1c79356b A	297	size_t size,
	298	int type,
	299	int flags)
	300	{
	301	MDECL(size) *mem;
	302	size_t memsize = sizeof (*mem);
	303
	304	if (type >= M_LAST)
	305	panic("_malloc TYPE");
	306
9bccf70c A	307	/*
	308	* On zero request we do not return zero as that
	309	* could be mistaken for ENOMEM.
	310	*/
1c79356b	311	if (size == 0)
9bccf70c	312	return (ZEROSIZETOKEN);
1c79356b A	313
	314	if (flags & M_NOWAIT) {
	315	mem = (void *)kalloc_noblock(memsize);
	316	} else {
	317	mem = (void *)kalloc(memsize);
	318	}
	319	if (!mem)
	320	return (0);
	321
	322	mem->hdr.mlen = memsize;
	323
55e303ae A	324	if (flags & M_ZERO)
	325	bzero(mem->hdr.dat, size);
	326
1c79356b A	327	return (mem->hdr.dat);
	328	}
	329
91447636 A	330	void
91447636 A	331	_FREE(
1c79356b A	332	void *addr,
	333	int type)
	334	{
	335	struct _mhead *hdr;
	336
	337	if (type >= M_LAST)
	338	panic("_free TYPE");
	339
9bccf70c	340	if (addr == (void *)ZEROSIZETOKEN)
1c79356b	341	return;
9bccf70c A	342	if (!addr)
9bccf70c A	343	return; /* correct (convenient bsd kernel legacy) */
1c79356b A	344
1c79356b A	345	hdr = addr; hdr--;
91447636	346	kfree(hdr, hdr->mlen);
1c79356b A	347	}
1c79356b A	348
91447636 A	349	void *
91447636 A	350	_MALLOC_ZONE(
1c79356b A	351	size_t size,
	352	int type,
	353	int flags)
	354	{
	355	struct kmzones *kmz;
	356	void *elem;
	357
	358	if (type >= M_LAST)
	359	panic("_malloc_zone TYPE");
	360
	361	kmz = &kmzones[type];
	362	if (kmz->kz_zalloczone == KMZ_MALLOC)
91447636	363	panic("_malloc_zone ZONE: type = %d", type);
1c79356b A	364
	365	/* XXX */
	366	if (kmz->kz_elemsize == -1)
	367	panic("_malloc_zone XXX");
	368	/* XXX */
	369	if (size == kmz->kz_elemsize)
	370	if (flags & M_NOWAIT) {
	371	elem = (void *)zalloc_noblock(kmz->kz_zalloczone);
	372	} else {
	373	elem = (void *)zalloc(kmz->kz_zalloczone);
	374	}
	375	else
	376	if (flags & M_NOWAIT) {
	377	elem = (void *)kalloc_noblock(size);
	378	} else {
	379	elem = (void *)kalloc(size);
	380	}
	381
	382	return (elem);
	383	}
	384
91447636 A	385	void
91447636 A	386	_FREE_ZONE(
1c79356b A	387	void *elem,
	388	size_t size,
	389	int type)
	390	{
	391	struct kmzones *kmz;
	392
	393	if (type >= M_LAST)
	394	panic("FREE_SIZE");
	395
	396	kmz = &kmzones[type];
	397	if (kmz->kz_zalloczone == KMZ_MALLOC)
	398	panic("free_zone ZONE");
	399
	400	/* XXX */
	401	if (kmz->kz_elemsize == -1)
	402	panic("FREE_SIZE XXX");
	403	/* XXX */
	404	if (size == kmz->kz_elemsize)
91447636	405	zfree(kmz->kz_zalloczone, elem);
1c79356b	406	else
91447636	407	kfree(elem, size);
1c79356b	408	}