func Fadvise(fd int, offset int64, length int64, advice int) (err error) {
	_, _, e1 := Syscall9(SYS_FADVISE64, uintptr(fd), 0, uintptr(offset), uintptr(offset>>32), uintptr(length), uintptr(length>>32), uintptr(advice), 0, 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
package unix
import (
	"syscall"
	"unsafe"
)
var _ syscall.Errno
func fanotifyMark(fd int, flags uint, mask uint64, dirFd int, pathname *byte) (err error) {
	_, _, e1 := Syscall6(SYS_FANOTIFY_MARK, uintptr(fd), uintptr(flags), uintptr(mask), uintptr(mask>>32), uintptr(dirFd), uintptr(unsafe.Pointer(pathname)))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
func Fallocate(fd int, mode uint32, off int64, len int64) (err error) {
	_, _, e1 := Syscall6(SYS_FALLOCATE, uintptr(fd), uintptr(mode), uintptr(off), uintptr(off>>32), uintptr(len), uintptr(len>>32))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
func Tee(rfd int, wfd int, len int, flags int) (n int64, err error) {
	r0, r1, e1 := Syscall6(SYS_TEE, uintptr(rfd), uintptr(wfd), uintptr(len), uintptr(flags), 0, 0)
	n = int64(int64(r1)<<32 | int64(r0))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
func dup2(oldfd int, newfd int) (err error) {
	_, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
func EpollCreate(size int) (fd int, err error) {
	r0, _, e1 := RawSyscall(SYS_EPOLL_CREATE, uintptr(size), 0, 0)
	fd = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}
func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(events) > 0 {
		_p0 = unsafe.Pointer(&events[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := Syscall6(SYS_EPOLL_WAIT, uintptr(epfd), uintptr(_p0), uintptr(len(events)), uintptr(msec), 0, 0)
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}