1 /*
2  * posix_fallocate() for uClibc
3  * http://www.opengroup.org/onlinepubs/9699919799/functions/posix_fallocate.html
4  *
5  * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
6  *
7  * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
8  */
9 
10 #include <sys/syscall.h>
11 #include <fcntl.h>
12 #include <bits/kernel-features.h>
13 #include <stdint.h>
14 #include <errno.h>
15 
16 #if defined __NR_fallocate
17 # if __WORDSIZE == 64
18 /* Can use normal posix_fallocate() */
19 # elif __WORDSIZE == 32
20 extern __typeof(fallocate64) __libc_fallocate64 attribute_hidden;
posix_fallocate64(int fd,__off64_t offset,__off64_t len)21 int posix_fallocate64(int fd, __off64_t offset, __off64_t len)
22 {
23 	if (__libc_fallocate64(fd, 0, offset, len))
24 		return errno;
25 	return 0;
26 }
27 # else
28 #  error your machine is neither 32 bit or 64 bit ... it must be magical
29 # endif
30 #endif
31