diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index d12ff9385f49..b752d85ad8c6 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -12,6 +12,7 @@
 #include "nfs42.h"
 #include "iostat.h"
 #include "pnfs.h"
+#include "nfs4session.h"
 #include "internal.h"
 
 #define NFSDBG_FACILITY NFSDBG_PROC
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 665165833660..04ffea093d56 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -273,11 +273,6 @@ extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
 		fmode_t fmode);
 
 #if defined(CONFIG_NFS_V4_1)
-static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
-{
-	return server->nfs_client->cl_session;
-}
-
 extern int nfs41_setup_sequence(struct nfs4_session *session,
 		struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
 		struct rpc_task *task);
@@ -357,11 +352,6 @@ nfs4_state_protect_write(struct nfs_client *clp, struct rpc_clnt **clntp,
 		hdr->args.stable = NFS_FILE_SYNC;
 }
 #else /* CONFIG_NFS_v4_1 */
-static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
-{
-	return NULL;
-}
-
 static inline bool
 is_ds_only_client(struct nfs_client *clp)
 {
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index dae385500005..22cb55015b2b 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -103,6 +103,11 @@ static inline bool nfs4_test_locked_slot(const struct nfs4_slot_table *tbl,
 	return !!test_bit(slotid, tbl->used_slots);
 }
 
+static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
+{
+	return server->nfs_client->cl_session;
+}
+
 #if defined(CONFIG_NFS_V4_1)
 extern void nfs41_set_target_slotid(struct nfs4_slot_table *tbl,
 		u32 target_highest_slotid);