1#define _GNU_SOURCE
2#include <fcntl.h>
3#include <errno.h>
4#include "syscall.h"
5
6int sync_file_range(int fd, off_t pos, off_t len, unsigned flags)
7{
8#if defined(SYS_sync_file_range2)
9 return syscall(SYS_sync_file_range2, fd, flags,
10 __SYSCALL_LL_E(pos), __SYSCALL_LL_E(len));
11#elif defined(SYS_sync_file_range)
12 return syscall(SYS_sync_file_range, fd,
13 __SYSCALL_LL_O(pos), __SYSCALL_LL_E(len), flags);
14#else
15 return __syscall_ret(-ENOSYS);
16#endif
17}