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#ifndef _HACK_MM_H_
#define _HACK_MM_H_
#include <linux/kernel.h>
#include <linux/sched.h>
/* All memory addresses are presumptively valid, because they are
all internal. */
#define verify_area(a,b,c) 0
#define VERIFY_READ 0
#define VERIFY_WRITE 0
#define GFP_ATOMIC 0
#define GFP_KERNEL 0
#define GFP_BUFFER 0
#define __GFP_WAIT 0
#include <mach.h>
#include <sys/mman.h>
#include <stdint.h>
#define PAGE_SIZE (1 << PAGE_SHIFT)
/* The one use of this is by net/ipv4/tcp.c::tcp_init, which
uses the power of two above `num_physpages >> (20 - PAGE_SHIFT)'
as a starting point and halves from there the number of pages
it tries to allocate for the hash table of TCP connections. */
#define num_physpages (64 << 20 >> PAGE_SHIFT) /* XXX calculate for 32MB */
static inline uintptr_t
__get_free_pages (int gfp_mask, unsigned long int order)
{
void *ptr = mmap (0, PAGE_SIZE << order,
PROT_READ|PROT_WRITE, MAP_ANON, 0, 0);
return ptr == MAP_FAILED ? 0 : (uintptr_t) ptr;
}
#endif
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