Fix tests by removing invalid test cases

Due to rust-lang/rust#124210, when an owned fd
has already been closed before it's dropped means that something else
touched the fd in ways its not allowed to. Therefore, these tests fail
due to this new behavior enforcement

Signed-off-by: Bryant Biggs <[email protected]>

Author: bryantbiggs

benches/lai/no_op.rs

@@ -4,6 +4,7 @@ use tokio::task::JoinSet;
 #[derive(Clone)]
 struct Options {
     iterations: usize,
+    #[allow(dead_code)]
     concurrency: usize,
     sq_size: usize,
     cq_size: usize,

tests/fs_file.rs

@@ -1,7 +1,4 @@
-use std::{
-    io::prelude::*,
-    os::unix::io::{AsRawFd, FromRawFd, RawFd},
-};
+use std::io::prelude::*;
 
 use tempfile::NamedTempFile;
 
@@ -129,21 +126,6 @@ fn cancel_read() {
     });
 }
 
-#[test]
-fn explicit_close() {
-    let mut tempfile = tempfile();
-    tempfile.write_all(HELLO).unwrap();
-
-    tokio_uring::start(async {
-        let file = File::open(tempfile.path()).await.unwrap();
-        let fd = file.as_raw_fd();
-
-        file.close().await.unwrap();
-
-        assert_invalid_fd(fd);
-    })
-}
-
 #[test]
 fn drop_open() {
     tokio_uring::start(async {
@@ -160,19 +142,6 @@ fn drop_open() {
     });
 }
 
-#[test]
-fn drop_off_runtime() {
-    let file = tokio_uring::start(async {
-        let tempfile = tempfile();
-        File::open(tempfile.path()).await.unwrap()
-    });
-
-    let fd = file.as_raw_fd();
-    drop(file);
-
-    assert_invalid_fd(fd);
-}
-
 #[test]
 fn sync_doesnt_kill_anything() {
     let tempfile = tempfile();
@@ -319,7 +288,6 @@ fn tempfile() -> NamedTempFile {
 
 async fn poll_once(future: impl std::future::Future) {
     use std::future::poll_fn;
-    // use std::future::Future;
     use std::task::Poll;
     use tokio::pin;
 
@@ -331,15 +299,3 @@ async fn poll_once(future: impl std::future::Future) {
     })
     .await;
 }
-
-fn assert_invalid_fd(fd: RawFd) {
-    use std::fs::File;
-
-    let mut f = unsafe { File::from_raw_fd(fd) };
-    let mut buf = vec![];
-
-    match f.read_to_end(&mut buf) {
-        Err(ref e) if e.raw_os_error() == Some(libc::EBADF) => {}
-        res => panic!("assert_invalid_fd finds for fd {:?}, res = {:?}", fd, res),
-    }
-}