From 1fe0d6eeebba4dba682db22ed53742ea95148bf9 Mon Sep 17 00:00:00 2001
From: Brooks Prumo <brooks@solana.com>
Date: Wed, 9 Mar 2022 19:22:42 -0600
Subject: [PATCH] Set ordering flushing_active.swap() to AcqRel (#23567)

---
 runtime/src/in_mem_accounts_index.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/runtime/src/in_mem_accounts_index.rs b/runtime/src/in_mem_accounts_index.rs
index 460edb8bcd..b2af1bcd8e 100644
--- a/runtime/src/in_mem_accounts_index.rs
+++ b/runtime/src/in_mem_accounts_index.rs
@@ -864,7 +864,7 @@ impl<T: IndexValue> InMemAccountsIndex<T> {
     }
 
     pub(crate) fn flush(&self) {
-        let flushing = self.flushing_active.swap(true, Ordering::Acquire);
+        let flushing = self.flushing_active.swap(true, Ordering::AcqRel);
         if flushing {
             // already flushing in another thread
             return;