include: <fcntl.h>
include: <errno.h>
fiu name base: linux/io/
# sync_file_range() is linux-only, and depends on _FILE_OFFSET_BITS==64.
v: #if defined __linux__ && _FILE_OFFSET_BITS == 64
int sync_file_range(int fd, off_t offset, off_t nbytes, \
unsigned int flags);
on error: -1
valid errnos: EBADF EINVAL EIO ENOMEM ENOSPC
v: #endif