util: add `const fn` support for internal `LinkedList`. (#2805)

3 files changed, 6 insertions, 6 deletions

diff --git a/tokio/src/runtime/basic_scheduler.rs b/tokio/src/runtime/basic_scheduler.rs
index 48cff709..7bf8b445 100644
--- a/tokio/src/runtime/basic_scheduler.rs
+++ b/tokio/src/runtime/basic_scheduler.rs
@@ -1,7 +1,7 @@
 use crate::park::{Park, Unpark};
 use crate::runtime;
 use crate::runtime::task::{self, JoinHandle, Schedule, Task};
-use crate::util::linked_list::LinkedList;
+use crate::util::linked_list::{Link, LinkedList};
 use crate::util::{waker_ref, Wake};
 
 use std::cell::RefCell;
@@ -42,7 +42,7 @@ pub(crate) struct Spawner {
 
 struct Tasks {
     /// Collection of all active tasks spawned onto this executor.
-    owned: LinkedList<Task<Arc<Shared>>>,
+    owned: LinkedList<Task<Arc<Shared>>, <Task<Arc<Shared>> as Link>::Target>,
 
     /// Local run queue.
     ///
diff --git a/tokio/src/runtime/tests/task.rs b/tokio/src/runtime/tests/task.rs
index 82315a04..a34526f3 100644
--- a/tokio/src/runtime/tests/task.rs
+++ b/tokio/src/runtime/tests/task.rs
@@ -1,5 +1,5 @@
 use crate::runtime::task::{self, Schedule, Task};
-use crate::util::linked_list::LinkedList;
+use crate::util::linked_list::{Link, LinkedList};
 use crate::util::TryLock;
 
 use std::collections::VecDeque;
@@ -72,7 +72,7 @@ struct Inner {
 
 struct Core {
     queue: VecDeque<task::Notified<Runtime>>,
-    tasks: LinkedList<Task<Runtime>>,
+    tasks: LinkedList<Task<Runtime>, <Task<Runtime> as Link>::Target>,
 }
 
 static CURRENT: TryLock<Option<Runtime>> = TryLock::new(None);
diff --git a/tokio/src/runtime/thread_pool/worker.rs b/tokio/src/runtime/thread_pool/worker.rs
index ac052854..10e973f6 100644
--- a/tokio/src/runtime/thread_pool/worker.rs
+++ b/tokio/src/runtime/thread_pool/worker.rs
@@ -12,7 +12,7 @@ use crate::runtime;
 use crate::runtime::park::{Parker, Unparker};
 use crate::runtime::thread_pool::{AtomicCell, Idle};
 use crate::runtime::{queue, task};
-use crate::util::linked_list::LinkedList;
+use crate::util::linked_list::{Link, LinkedList};
 use crate::util::FastRand;
 
 use std::cell::RefCell;
@@ -53,7 +53,7 @@ struct Core {
     is_shutdown: bool,
 
     /// Tasks owned by the core
-    tasks: LinkedList<Task>,
+    tasks: LinkedList<Task, <Task as Link>::Target>,
 
     /// Parker
     ///