diff --git a/.githubmap b/.githubmap
index 776cba95a74..3b38a3097da 100644
--- a/.githubmap
+++ b/.githubmap
@@ -26,6 +26,7 @@ badone Brad Hubbard <bhubbard@redhat.com>
 baruza Barbora Ančincová <bara@redhat.com>
 bassamtabbara Bassam Tabbara <bassam.tabbara@quantum.com>
 batrick Patrick Donnelly <pdonnell@redhat.com>
+bigjust Justin Caratzas <jcaratza@redhat.com>
 bk201 Kiefer Chang <kiefer.chang@suse.com>
 BlaineEXE Blaine Gardner <bgardner@suse.com>
 branch-predictor Piotr Dałek <piotr.dalek@corp.ovh.com>
diff --git a/ceph.spec.in b/ceph.spec.in
index 6823be99dca..d3c49e20a1b 100644
--- a/ceph.spec.in
+++ b/ceph.spec.in
@@ -377,6 +377,7 @@ Requires:	systemd
 BuildRequires:  boost-random
 BuildRequires:	nss-devel
 BuildRequires:	keyutils-libs-devel
+BuildRequires:  libatomic
 BuildRequires:	libibverbs-devel
 BuildRequires:  librdmacm-devel
 BuildRequires:  ninja-build
diff --git a/cmake/modules/CheckCxxAtomic.cmake b/cmake/modules/CheckCxxAtomic.cmake
index 02d55612e81..8bbeaa09f36 100644
--- a/cmake/modules/CheckCxxAtomic.cmake
+++ b/cmake/modules/CheckCxxAtomic.cmake
@@ -27,6 +27,7 @@ struct tagged_ptr {
   std::size_t tag;
 };
 
+void atomic16(std::atomic<tagged_ptr> *ptr) __attribute__ ((used));
 void atomic16(std::atomic<tagged_ptr> *ptr)
 {
   tagged_ptr p{nullptr, 1};