misc: virtio-devices: drop extern crate, use modern rust

This commit is part of a series of similar commits.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com

virtio-devices/src/vhost_user/blk.rs

@@ -6,6 +6,8 @@ use std::sync::{Arc, Barrier, Mutex};
 use std::{mem, result, thread};
 
 use block::VirtioBlockConfig;
+use event_monitor::event;
+use log::{error, info};
 use seccompiler::SeccompAction;
 use serde::{Deserialize, Serialize};
 use vhost::vhost_user::message::{

virtio-devices/src/vhost_user/fs.rs

@@ -5,6 +5,8 @@ use std::sync::atomic::AtomicBool;
 use std::sync::{Arc, Barrier, Mutex};
 use std::{result, thread};
 
+use event_monitor::event;
+use log::{error, info};
 use seccompiler::SeccompAction;
 use serde::{Deserialize, Serialize};
 use serde_with::{Bytes, serde_as};

virtio-devices/src/vhost_user/mod.rs

@@ -8,6 +8,7 @@ use std::sync::atomic::AtomicBool;
 use std::sync::{Arc, Barrier, Mutex};
 
 use anyhow::anyhow;
+use log::error;
 use serde::{Deserialize, Serialize};
 use thiserror::Error;
 use vhost::Error as VhostError;

virtio-devices/src/vhost_user/net.rs

@@ -5,6 +5,8 @@ use std::sync::atomic::AtomicBool;
 use std::sync::{Arc, Barrier, Mutex};
 use std::{result, thread};
 
+use event_monitor::event;
+use log::{error, info};
 use net_util::{CtrlQueue, MacAddr, VirtioNetConfig, build_net_config_space};
 use seccompiler::SeccompAction;
 use serde::{Deserialize, Serialize};

virtio-devices/src/vhost_user/vu_common_ctrl.rs

@@ -10,6 +10,7 @@ use std::sync::atomic::Ordering;
 use std::thread::sleep;
 use std::time::{Duration, Instant};
 
+use log::{error, info};
 use vhost::vhost_kern::vhost_binding::{VHOST_F_LOG_ALL, VHOST_VRING_F_LOG};
 use vhost::vhost_user::message::{
     VhostUserHeaderFlag, VhostUserInflight, VhostUserProtocolFeatures, VhostUserVirtioFeatures,