| Alex Dewar | 0d1fb0a | 2019-08-25 10:49:17 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| Jeff Dike | 1d3468a | 2006-07-10 04:45:13 -0700 | [diff] [blame] | 2 | /* |
| Jeff Dike | ba180fd | 2007-10-16 01:27:00 -0700 | [diff] [blame] | 3 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | */ |
| 5 | |
| Al Viro | 37185b3 | 2012-10-08 03:27:32 +0100 | [diff] [blame] | 6 | #include <linux/file.h> |
| 7 | #include <linux/fs.h> |
| 8 | #include <linux/mm.h> |
| 9 | #include <linux/sched.h> |
| 10 | #include <linux/utsname.h> |
| 11 | #include <linux/syscalls.h> |
| 12 | #include <asm/current.h> |
| 13 | #include <asm/mman.h> |
| Linus Torvalds | 7c0f6ba | 2016-12-24 11:46:01 -0800 | [diff] [blame] | 14 | #include <linux/uaccess.h> |
| Al Viro | 37185b3 | 2012-10-08 03:27:32 +0100 | [diff] [blame] | 15 | #include <asm/unistd.h> |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | long old_mmap(unsigned long addr, unsigned long len, |
| 18 | unsigned long prot, unsigned long flags, |
| 19 | unsigned long fd, unsigned long offset) |
| 20 | { |
| 21 | long err = -EINVAL; |
| 22 | if (offset & ~PAGE_MASK) |
| 23 | goto out; |
| 24 | |
| Dominik Brodowski | a90f590 | 2018-03-11 11:34:46 +0100 | [diff] [blame] | 25 | err = ksys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | out: |
| 27 | return err; |
| 28 | } |