[compiler-rt] [scudo] Only init RingBuffer when needed. (PR #85994)

[Christopher Ferris via llvm-commits]

================
@@ -181,13 +181,15 @@ class Allocator {
         static_cast<uptr>(getFlags()->thread_local_quarantine_size_kb << 10));
   }
 
-  void enableRingBuffer() {
+  void enableRingBuffer() NO_THREAD_SAFETY_ANALYSIS {
+    RingBufferInitLock.unlock();
     AllocationRingBuffer *RB = getRingBuffer();
     if (RB)
       RB->Depot->enable();
   }
 
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cferris1000 wrote:

Done.

https://github.com/llvm/llvm-project/pull/85994