[compiler-rt] [scudo] Reduce thread contention in secondary cache releases. (PR #102984)

[Christopher Ferris via llvm-commits]

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@@ -351,9 +351,10 @@ class MapAllocatorCache {
     for (MemMapT &EvictMemMap : EvictionMemMaps)
       unmapCallBack(EvictMemMap);
 
-    if (Interval >= 0) {
+    if (Interval >= 0 && Mutex.tryLock()) {
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cferris1000 wrote:

Small nit, add a comment explaining why you are doing this.

https://github.com/llvm/llvm-project/pull/102984