/* * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */#include <stdio.h>#include <errno.h>#include <sys/mman.h>#include "user.h"intswitcheroo(intfd,intprot,void*from,void*to,intsize){if(munmap(to,size)<0){return(-1);}if(mmap(to,size,prot,MAP_SHARED|MAP_FIXED,fd,0)!=to){return(-1);}if(munmap(from,size)<0){return(-1);}return(0);}/* * Overrides for Emacs so that we follow Linus's tabbing style. * Emacs will notice this stuff at the end of the file and automatically * adjust the settings for this buffer only. This must remain at the end * of the file. * --------------------------------------------------------------------------- * Local variables: * c-file-style: "linux" * End: */