From f41a1c294bf09c4ab7e523f6c9aff5119044a097 Mon Sep 17 00:00:00 2001
From: Jim Blandy <jimb@red-bean.com>
Date: Tue, 15 Nov 2022 13:52:12 -0800
Subject: [PATCH] Remove unnecessary mutability from ResourceMetadata field
 uses. (#3210)

---
 wgpu-core/src/track/buffer.rs    | 6 +++---
 wgpu-core/src/track/stateless.rs | 6 +++---
 wgpu-core/src/track/texture.rs   | 6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/wgpu-core/src/track/buffer.rs b/wgpu-core/src/track/buffer.rs
index 933201dc85..c021a349ac 100644
--- a/wgpu-core/src/track/buffer.rs
+++ b/wgpu-core/src/track/buffer.rs
@@ -537,11 +537,11 @@ impl<A: hub::HalApi> BufferTracker<A> {
 
         unsafe {
             if self.metadata.owned.get(index).unwrap_unchecked() {
-                let existing_epoch = self.metadata.epochs.get_unchecked_mut(index);
-                let existing_ref_count = self.metadata.ref_counts.get_unchecked_mut(index);
+                let existing_epoch = self.metadata.epochs.get_unchecked(index);
+                let existing_ref_count = self.metadata.ref_counts.get_unchecked(index);
 
                 if *existing_epoch == epoch
-                    && existing_ref_count.as_mut().unwrap_unchecked().load() == 1
+                    && existing_ref_count.as_ref().unwrap_unchecked().load() == 1
                 {
                     self.metadata.reset(index);
 
diff --git a/wgpu-core/src/track/stateless.rs b/wgpu-core/src/track/stateless.rs
index 4267e829db..13117cb53e 100644
--- a/wgpu-core/src/track/stateless.rs
+++ b/wgpu-core/src/track/stateless.rs
@@ -191,11 +191,11 @@ impl<A: hub::HalApi, T: hub::Resource, Id: TypedId> StatelessTracker<A, T, Id> {
 
         unsafe {
             if self.metadata.owned.get(index).unwrap_unchecked() {
-                let existing_epoch = self.metadata.epochs.get_unchecked_mut(index);
-                let existing_ref_count = self.metadata.ref_counts.get_unchecked_mut(index);
+                let existing_epoch = self.metadata.epochs.get_unchecked(index);
+                let existing_ref_count = self.metadata.ref_counts.get_unchecked(index);
 
                 if *existing_epoch == epoch
-                    && existing_ref_count.as_mut().unwrap_unchecked().load() == 1
+                    && existing_ref_count.as_ref().unwrap_unchecked().load() == 1
                 {
                     self.metadata.reset(index);
 
diff --git a/wgpu-core/src/track/texture.rs b/wgpu-core/src/track/texture.rs
index 99e8119c4b..0e0271688a 100644
--- a/wgpu-core/src/track/texture.rs
+++ b/wgpu-core/src/track/texture.rs
@@ -754,11 +754,11 @@ impl<A: hub::HalApi> TextureTracker<A> {
 
         unsafe {
             if self.metadata.owned.get(index).unwrap_unchecked() {
-                let existing_epoch = self.metadata.epochs.get_unchecked_mut(index);
-                let existing_ref_count = self.metadata.ref_counts.get_unchecked_mut(index);
+                let existing_epoch = self.metadata.epochs.get_unchecked(index);
+                let existing_ref_count = self.metadata.ref_counts.get_unchecked(index);
 
                 if *existing_epoch == epoch
-                    && existing_ref_count.as_mut().unwrap_unchecked().load() == 1
+                    && existing_ref_count.as_ref().unwrap_unchecked().load() == 1
                 {
                     self.start_set.complex.remove(&index32);
                     self.end_set.complex.remove(&index32);