Export of internal Abseil changes

--
08d99ee216b7bfac1c5182db952d4e053e5ebc31 by Abseil Team <absl-team@google.com>:

Fix race condition reported by tsan on `inline_element_size` in hashtablez.

PiperOrigin-RevId: 413520771
GitOrigin-RevId: 08d99ee216b7bfac1c5182db952d4e053e5ebc31
Change-Id: Ibd396803f04a659cfbdb8dc7ec37511643657694

1 files changed, 4 insertions, 2 deletions

diff --git a/absl/container/internal/hashtablez_sampler.cc b/absl/container/internal/hashtablez_sampler.cc
index 1a3ca7cc..a3e15a70 100644
--- a/absl/container/internal/hashtablez_sampler.cc
+++ b/absl/container/internal/hashtablez_sampler.cc
@@ -111,7 +111,8 @@ HashtablezInfo* SampleSlow(int64_t* next_sample, size_t inline_element_size) {
   if (ABSL_PREDICT_FALSE(ShouldForceSampling())) {
     *next_sample = 1;
     HashtablezInfo* result = GlobalHashtablezSampler().Register();
-    result->inline_element_size = inline_element_size;
+    result->inline_element_size.store(inline_element_size,
+                                      std::memory_order_relaxed);
     return result;
   }
 
@@ -138,7 +139,8 @@ HashtablezInfo* SampleSlow(int64_t* next_sample, size_t inline_element_size) {
   }
 
   HashtablezInfo* result = GlobalHashtablezSampler().Register();
-  result->inline_element_size = inline_element_size;
+  result->inline_element_size.store(inline_element_size,
+                                    std::memory_order_relaxed);
   return result;
 #endif
 }