From 80ffbe9fd8457cb4dce60db05d3e6635f3b00a0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joel=20Wejdenst=C3=A5l?= <jwejdenstal@icloud.com>
Date: Mon, 24 Jun 2024 15:38:57 +0200
Subject: [PATCH] fix deadlock in shrink_to_fit

---
 src/lib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index ef2e6b56..1b0225a5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1110,7 +1110,9 @@ impl<'a, K: 'a + Eq + Hash, V: 'a, S: 'a + BuildHasher + Clone> Map<'a, K, V, S>
 
     fn _shrink_to_fit(&self) {
         self.shards.iter().for_each(|s| {
-            s.write().shrink_to(self.len(), |(k, _v)| {
+            let mut shard = s.write();
+            let size = shard.len();
+            shard.shrink_to(size, |(k, _v)| {
                 let mut hasher = self.hasher.build_hasher();
                 k.hash(&mut hasher);
                 hasher.finish()