sync::atomic::spin_loop_hint -> hint::spin_loop

Replaced std::sync::atomic::spin_loop_hint as it is deprecated.

src/bin/uhyve.rs

@@ -10,7 +10,7 @@ extern crate rftrace;
 extern crate rftrace_frontend;
 
 use std::env;
-use std::sync::atomic::spin_loop_hint;
+use std::hint;
 use std::sync::Arc;
 use std::thread;
 
@@ -273,7 +273,7 @@ fn main() {
 				// only one core is able to enter startup code
 				// => the wait for the predecessor core
 				while tid != vm.cpu_online() {
-					spin_loop_hint();
+					hint::spin_loop();
 				}
 
 				// jump into the VM and excute code of the guest

src/linux/uhyve.rs

@@ -14,13 +14,13 @@ use kvm_ioctls::VmFd;
 use log::debug;
 use nix::sys::mman::*;
 use std::convert::TryInto;
+use std::hint;
 use std::mem;
 use std::net::Ipv4Addr;
 use std::os::raw::c_void;
 use std::ptr;
 use std::ptr::{read_volatile, write_volatile};
 use std::str::FromStr;
-use std::sync::atomic::spin_loop_hint;
 use std::sync::mpsc::sync_channel;
 use std::sync::{Arc, Mutex};
 use std::thread;
@@ -104,7 +104,7 @@ impl UhyveNetwork {
 
 					evtfd.write(1).expect("Unable to trigger interrupt");
 				} else {
-					spin_loop_hint();
+					hint::spin_loop();
 				}
 			}
 		});