diff --git a/0019-cmake-modules-CheckCxxAtomic.cmake.patch b/0019-cmake-modules-CheckCxxAtomic.cmake.patch
index e443f1e..c6c02dc 100644
--- a/0019-cmake-modules-CheckCxxAtomic.cmake.patch
+++ b/0019-cmake-modules-CheckCxxAtomic.cmake.patch
@@ -1,39 +1,10 @@
 --- ceph-17.2.0-359-gb2fe9ec8/cmake/modules/CheckCxxAtomic.cmake.orig	2022-06-03 08:45:32.341075140 -0400
 +++ ceph-17.2.0-359-gb2fe9ec8/cmake/modules/CheckCxxAtomic.cmake	2022-06-03 08:46:47.195775813 -0400
-@@ -10,6 +10,7 @@
-     check_cxx_source_compiles("
- #include <atomic>
- #include <cstdint>
-+#include <cstddef>
- 
- #if __s390x__
- // Boost needs 16-byte atomics for tagged pointers.
-@@ -21,13 +22,27 @@
+@@ -21,6 +21,7 @@
  // We specifically test access via an otherwise unknown pointer here
  // to ensure we get the most complex case.  If this access can be
  // done without libatomic, then all accesses can be done.
-+struct tagged_ptr {
-+  int* ptr;
-+  std::size_t tag;
-+};
-+
-+void atomic16(std::atomic<tagged_ptr> *ptr) __attribute__ ((used));
++bool atomic16(std::atomic<unsigned __int128> *ptr) __attribute__ ((used));
  bool atomic16(std::atomic<unsigned __int128> *ptr)
  {
--  return *ptr != 0;
-+  tagged_ptr p{nullptr, 1};
-+  ptr->store(p);
-+  tagged_ptr f = ptr->load();
-+  tagged_ptr new_tag{nullptr, 0};
-+  ptr->compare_exchange_strong(f, new_tag);
- }
- #endif
- 
- int main() {
-+#if __s390x__
-+  std::atomic<tagged_ptr> ptr;
-+  atomic16(&ptr);
-+#endif
-   std::atomic<uint8_t> w1;
-   std::atomic<uint16_t> w2;
-   std::atomic<uint32_t> w4;
+   return *ptr != 0;