os/kstore: add missing include

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>

diff --git a/src/os/kstore/KStore.cc b/src/os/kstore/KStore.cc
index a069d429155a80f85bf3bcbc17d428e2962000f1..24ab4ed4d7314b71be7b584a75186f90a1715bc0 100644 (file)
--- a/src/os/kstore/KStore.cc
+++ b/src/os/kstore/KStore.cc
@@ -33,6 +33,8 @@
 #include "common/Formatter.h"
 #include "common/pretty_binary.h"
 
+#include <shared_mutex> // for std::shared_lock
+
 #define dout_context cct
 #define dout_subsys ceph_subsys_kstore