ia64/linux-2.6.18-xen.hg

view arch/um/sys-i386/unmap.c @ 647:a5bb490065f6

Fix the build after public header sync.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Aug 13 14:01:49 2008 +0100 (2008-08-13)
parents 831230e53067
children
line source
1 /*
2 * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
4 */
6 #include <linux/mman.h>
7 #include <asm/unistd.h>
9 static int errno;
11 static inline _syscall2(int,munmap,void *,start,size_t,len)
12 static inline _syscall6(void *,mmap2,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset)
13 int switcheroo(int fd, int prot, void *from, void *to, int size)
14 {
15 if(munmap(to, size) < 0){
16 return(-1);
17 }
18 if(mmap2(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1 ){
19 return(-1);
20 }
21 if(munmap(from, size) < 0){
22 return(-1);
23 }
24 return(0);
25 }