2 files changed, 4 insertions, 7 deletions
diff --git a/src/libANGLE/renderer/vulkan/vk_utils.cpp b/src/libANGLE/renderer/vulkan/vk_utils.cpp
index 7285841ad3..0a2fb137f1 100644
--- a/src/libANGLE/renderer/vulkan/vk_utils.cpp
+++ b/src/libANGLE/renderer/vulkan/vk_utils.cpp
@@ -1618,7 +1618,6 @@ angle::Result BufferBlock::init(Context *context,
     ASSERT(!mBuffer.valid());
     ASSERT(!mDeviceMemory.valid());
 
-    mVirtualBlockMutex.init(renderer->isAsyncCommandQueueEnabled());
     ANGLE_VK_TRY(context, mVirtualBlock.init(renderer->getDevice(), flags, size));
 
     mBuffer              = std::move(buffer);
@@ -1664,7 +1663,7 @@ void BufferBlock::unmap(const VkDevice device)
 
 void BufferBlock::free(VkDeviceSize offset)
 {
-    std::lock_guard<ConditionalMutex> lock(mVirtualBlockMutex);
+    std::unique_lock<std::mutex> lock(mVirtualBlockMutex);
     mVirtualBlock.free(offset);
 }
 
diff --git a/src/libANGLE/renderer/vulkan/vk_utils.h b/src/libANGLE/renderer/vulkan/vk_utils.h
index a53c8a462f..37f07acc36 100644
--- a/src/libANGLE/renderer/vulkan/vk_utils.h
+++ b/src/libANGLE/renderer/vulkan/vk_utils.h
@@ -945,9 +945,7 @@ class BufferBlock final : angle::NonCopyable
     int32_t getAndIncrementEmptyCounter();
 
   private:
-    // Protect multi-thread access to mVirtualBlock, which could be possible when asyncCommandQueue
-    // is enabled.
-    ConditionalMutex mVirtualBlockMutex;
+    mutable std::mutex mVirtualBlockMutex;
     VirtualBlock mVirtualBlock;
 
     Buffer mBuffer;
@@ -1025,7 +1023,7 @@ ANGLE_INLINE VkDeviceSize BufferBlock::getMemorySize() const
 
 ANGLE_INLINE VkBool32 BufferBlock::isEmpty()
 {
-    std::lock_guard<ConditionalMutex> lock(mVirtualBlockMutex);
+    std::unique_lock<std::mutex> lock(mVirtualBlockMutex);
     return vma::IsVirtualBlockEmpty(mVirtualBlock.getHandle());
 }
 
@@ -1054,7 +1052,7 @@ ANGLE_INLINE VkResult BufferBlock::allocate(VkDeviceSize size,
                                             VkDeviceSize alignment,
                                             VkDeviceSize *offsetOut)
 {
-    std::lock_guard<ConditionalMutex> lock(mVirtualBlockMutex);
+    std::unique_lock<std::mutex> lock(mVirtualBlockMutex);
     mCountRemainsEmpty = 0;
     return mVirtualBlock.allocate(size, alignment, offsetOut);
 }