client: Add shared_mutex

Signed-off-by: Christopher Hoffman <choffman@redhat.com>

diff --git a/src/client/FSCrypt.cc b/src/client/FSCrypt.cc
index 4128ce57c01d39880adb2edff9cfbd6f98850c65..32269b0afb9fdd39ac6210602c000e2385a8ed33 100644 (file)
--- a/src/client/FSCrypt.cc
+++ b/src/client/FSCrypt.cc
@@ -28,6 +28,7 @@
 #include <openssl/core_names.h>
 
 #include <string.h>
+#include <shared_mutex>
 
 #define dout_subsys ceph_subsys_client