From 234c565e040e13bac2ebfdd5840ab248b331e138 Mon Sep 17 00:00:00 2001
From: Yijie Shen <henry.yijieshen@gmail.com>
Date: Wed, 12 Jan 2022 11:09:44 +0800
Subject: [PATCH] unnecessary unsafe

---
 datafusion/src/execution/memory_manager.rs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/datafusion/src/execution/memory_manager.rs b/datafusion/src/execution/memory_manager.rs
index 903bda4e722e..a60d972265f3 100644
--- a/datafusion/src/execution/memory_manager.rs
+++ b/datafusion/src/execution/memory_manager.rs
@@ -26,11 +26,9 @@ use std::fmt::{Debug, Display, Formatter};
 use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::{Arc, Condvar, Mutex, Weak};
 
-static mut CONSUMER_ID: AtomicUsize = AtomicUsize::new(0);
+static CONSUMER_ID: AtomicUsize = AtomicUsize::new(0);
 
-fn next_id() -> usize {
-    unsafe { CONSUMER_ID.fetch_add(1, Ordering::SeqCst) }
-}
+fn next_id() -> usize { CONSUMER_ID.fetch_add(1, Ordering::SeqCst) }
 
 /// Type of the memory consumer
 pub enum ConsumerType {