#include <asm/uaccess.h>
-#define MIN_MAP_ADDR PAGE_SIZE /* minimum fixed mmap address */
-
-/*
- * memory mapping syscall
- */
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- struct file *file = NULL;
- long error = -EINVAL;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
- if (flags & MAP_FIXED && addr < MIN_MAP_ADDR)
- goto out;
-
- error = -EBADF;
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- down_write(¤t->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(¤t->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return error;
-}
-
asmlinkage long old_mmap(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long offset)
{
if (offset & ~PAGE_MASK)
return -EINVAL;
- return sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-}
-
-struct sel_arg_struct {
- unsigned long n;
- fd_set *inp;
- fd_set *outp;
- fd_set *exp;
- struct timeval *tvp;
-};
-
-asmlinkage int old_select(struct sel_arg_struct __user *arg)
-{
- struct sel_arg_struct a;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- return -EFAULT;
- /* sys_select() does the appropriate kernel locking */
- return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
+ return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
}
/*