File: syscall.c

package info (click to toggle)
linux 4.19.194-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 967,940 kB
  • sloc: ansic: 16,799,826; asm: 272,028; makefile: 38,421; sh: 33,838; perl: 27,701; python: 21,148; cpp: 5,066; yacc: 4,650; lex: 2,584; awk: 1,385; ruby: 25; sed: 5
file content (28 lines) | stat: -rw-r--r-- 659 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/*
 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 * Licensed under the GPL
 */

#include <linux/file.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/utsname.h>
#include <linux/syscalls.h>
#include <asm/current.h>
#include <asm/mman.h>
#include <linux/uaccess.h>
#include <asm/unistd.h>

long old_mmap(unsigned long addr, unsigned long len,
	      unsigned long prot, unsigned long flags,
	      unsigned long fd, unsigned long offset)
{
	long err = -EINVAL;
	if (offset & ~PAGE_MASK)
		goto out;

	err = ksys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
 out:
	return err;
}