Revert "use spin lock in auto growth allocator (#34910)" (#35069)

This reverts commit 6bacfb0.

paddle/fluid/memory/allocation/auto_growth_best_fit_allocator.cc

@@ -45,7 +45,7 @@ AutoGrowthBestFitAllocator::AutoGrowthBestFitAllocator(
 Allocation *AutoGrowthBestFitAllocator::AllocateImpl(size_t size) {
   size = AlignedSize(size, alignment_);
 
-  std::lock_guard<SpinLock> guard(spinlock_);
+  std::lock_guard<std::mutex> guard(mtx_);
   auto iter = free_blocks_.lower_bound(std::make_pair(size, nullptr));
   BlockIt block_it;
   if (iter != free_blocks_.end()) {
@@ -94,12 +94,11 @@ Allocation *AutoGrowthBestFitAllocator::AllocateImpl(size_t size) {
     VLOG(2) << "Not found and reallocate " << realloc_size << ", and remaining "
             << remaining_size;
   }
-
   return new BlockAllocation(block_it);
 }
 
 void AutoGrowthBestFitAllocator::FreeImpl(Allocation *allocation) {
-  std::lock_guard<SpinLock> guard(spinlock_);
+  std::lock_guard<std::mutex> guard(mtx_);
   auto block_it = static_cast<BlockAllocation *>(allocation)->block_it_;
   auto &blocks = block_it->chunk_->blocks_;
 

paddle/fluid/memory/allocation/auto_growth_best_fit_allocator.h

@@ -21,7 +21,6 @@
 #include <utility>
 
 #include "paddle/fluid/memory/allocation/allocator.h"
-#include "paddle/fluid/memory/allocation/spin_lock.h"
 
 namespace paddle {
 namespace memory {
@@ -87,7 +86,7 @@ class AutoGrowthBestFitAllocator : public Allocator {
   size_t alignment_;
   size_t chunk_size_;
 
-  SpinLock spinlock_;
+  mutable std::mutex mtx_;
 };
 
 }  // namespace allocation