[MSan] Linker-initialize static fallback_mutex in msan_allocator.cc
Summary:
static fallback_mutex in msan_allocator.cc does not need the ctor
call and can be linker initialized.
Issue:
Reviewers: morehouse, eugenis
Subscribers: delcypher, #sanitizers, llvm-commits
@@ -120,7 +120,7 @@ typedef CombinedAllocator<PrimaryAllocator, AllocatorCache,
static Allocator allocator;
static AllocatorCache fallback_allocator_cache;
-static SpinMutex fallback_mutex;
+static StaticSpinMutex fallback_mutex;
void MsanAllocatorInit() {
SetAllocatorMayReturnNull(common_flags()->allocator_may_return_null);
