riscv64: fix 16-byte atomic build error

Ceph source include boost package. Boost not implement atomic
functions for RISC-V. Set riscv to the ceph autodect arches.

0022-add-atomic-library-for-riscv64.patch

@@ -0,0 +1,11 @@
+--- a/cmake/modules/CheckCxxAtomic.cmake	2023-08-23 14:08:23.304911386 +0800
++++ b/cmake/modules/CheckCxxAtomic.cmake	2023-08-23 14:09:10.994614880 +0800
+@@ -11,7 +11,7 @@
+ #include <atomic>
+ #include <cstdint>
+ 
+-#if defined(__s390x__) || defined(__sw_64__) || defined(__loongarch64)
++#if defined(__s390x__) || defined(__sw_64__) || defined(__loongarch64) || defined(__riscv)
+ // Boost needs 16-byte atomics for tagged pointers.
+ // These are implemented via inline instructions on the platform
+ // if 16-byte alignment can be proven, and are delegated to libatomic

ceph.spec

@@ -129,7 +129,7 @@
 #################################################################################
 Name:		ceph
 Version:	16.2.7
-Release:	22
+Release:	23
 %if 0%{?fedora} || 0%{?rhel} || 0%{?openEuler}
 Epoch:		2
 %endif
@@ -168,6 +168,7 @@ Patch18: 0018-Fix-Python-3.10-PEP-620-incompatibility.patch
 Patch19: 0019-include-memory.patch
 Patch20: 0020-compiled-with-gcc12.patch
 Patch21: 0021-boost-enable-sw64-architecture.patch
+Patch22: 0022-add-atomic-library-for-riscv64.patch
 %if 0%{?suse_version}
 # _insert_obs_source_lines_here
 ExclusiveArch:  x86_64 aarch64 ppc64le s390x
@@ -422,6 +423,8 @@ BuildRequires:  /usr/bin/pathfix.py
 %ifarch loongarch64
 BuildRequires:  boost-devel
 BuildRequires:  boost-random
+%endif
+%ifarch loongarch64 riscv64
 BuildRequires:  libatomic
 %endif
 
@@ -2531,6 +2534,9 @@ exit 0
 %config %{_sysconfdir}/prometheus/ceph/ceph_default_alerts.yml
 
 %changelog
+* Wed Aug 23 2023 laokz <zhangkai@iscas.ac.cn> - 2:16.2.7-23
+- fix riscv64 16-byte atomic build error
+
 * Mon Aug 21 2023 liuqinfei <lucas.liuqinfei@huawei.com> - 2:16.2.7-22
 - fix conflicts among multiple processor architectures