perf(kernel): linked cap tree, translate-based page lookup, next-fit frames/heap, targeted dequeue; host benches

crates/domain/src/notification/mod.rs

@@ -116,6 +116,11 @@ impl Notification {
         self.unbind(thread);
     }
 
+    /// Takes `thread` out of the waiters, leaving any binding.
+    pub fn remove_waiter(&mut self, thread: ThreadId) {
+        self.waiters.remove_thread(thread);
+    }
+
     /// Drains every waiter, e.g. when the notification is destroyed.
     pub fn pop_waiter(&mut self) -> Option<ThreadId> {
         self.waiters.pop()
@@ -177,12 +182,6 @@ impl NotificationTable {
             .filter(move |n| n.owner == owner)
             .map(|n| n.id)
     }
-
-    pub fn remove_thread_from_all(&mut self, thread: ThreadId) {
-        for n in self.slots.iter_mut().flatten() {
-            n.remove_thread(thread);
-        }
-    }
 }
 
 impl Default for NotificationTable {