mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
f806cdcf99
VM_KMEM_MAX_SIZE. The code was not taking into account the size of the kernel_map, which the kmem_map is allocated from, so it could produce a sub-map size too large to fit. The simplest solution is to ignore VM_KMEM_MAX entirely and base the memguard map's size off the kernel_map's size, since this is always relevant and always smaller. Found by: Justin Hibbits
58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
/*-
|
|
* Copyright (c) 2005,
|
|
* Bosko Milekic <bmilekic@FreeBSD.org>. 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 unmodified, 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _VM_MEMGUARD_H_
|
|
#define _VM_MEMGUARD_H_
|
|
|
|
#include "opt_vm.h"
|
|
|
|
struct malloc_type;
|
|
struct vm_map;
|
|
|
|
#ifdef DEBUG_MEMGUARD
|
|
unsigned long memguard_fudge(unsigned long, const struct vm_map *);
|
|
void memguard_init(struct vm_map *);
|
|
void *memguard_alloc(unsigned long, int);
|
|
void *memguard_realloc(void *, unsigned long, struct malloc_type *, int);
|
|
void memguard_free(void *);
|
|
int memguard_cmp_mtp(struct malloc_type *, unsigned long);
|
|
int memguard_cmp_zone(uma_zone_t);
|
|
int is_memguard_addr(void *);
|
|
#else
|
|
#define memguard_fudge(size, xxx) (size)
|
|
#define memguard_init(map) do { } while (0)
|
|
#define memguard_alloc(size, flags) NULL
|
|
#define memguard_realloc(a, s, mtp, f) NULL
|
|
#define memguard_free(addr) do { } while (0)
|
|
#define memguard_cmp_mtp(mtp, size) 0
|
|
#define memguard_cmp_zone(zone) 0
|
|
#define is_memguard_addr(addr) 0
|
|
#endif
|
|
|
|
#endif /* _VM_MEMGUARD_H_ */
|