From 547a32033ec60edc143da33c6c0fbde9d845e91a Mon Sep 17 00:00:00 2001
From: Alice Ryhl <aliceryhl@google.com>
Date: Fri, 15 Apr 2022 22:46:40 +0200
Subject: Add TSAN support (#541)

---
 src/bytes.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'src/bytes.rs')

diff --git a/src/bytes.rs b/src/bytes.rs
index 24c2137..1afab33 100644
--- a/src/bytes.rs
+++ b/src/bytes.rs
@@ -13,7 +13,7 @@ use alloc::{
 use crate::buf::IntoIter;
 #[allow(unused)]
 use crate::loom::sync::atomic::AtomicMut;
-use crate::loom::sync::atomic::{self, AtomicPtr, AtomicUsize, Ordering};
+use crate::loom::sync::atomic::{AtomicPtr, AtomicUsize, Ordering};
 use crate::Buf;
 
 /// A cheaply cloneable and sliceable chunk of contiguous memory.
@@ -1095,7 +1095,10 @@ unsafe fn release_shared(ptr: *mut Shared) {
     // > "acquire" operation before deleting the object.
     //
     // [1]: (www.boost.org/doc/libs/1_55_0/doc/html/atomic/usage_examples.html)
-    atomic::fence(Ordering::Acquire);
+    //
+    // Thread sanitizer does not support atomic fences. Use an atomic load
+    // instead.
+    (*ptr).ref_cnt.load(Ordering::Acquire);
 
     // Drop the data
     Box::from_raw(ptr);
-- 
cgit v1.2.3