nfsd4: declare nfs4_recoverydir properly

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index fa49cff..009632a 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1008,8 +1008,6 @@
 	return nfsd4_write_time(file, buf, size, &nfsd4_grace);
 }
 
-extern char *nfs4_recoverydir(void);
-
 static ssize_t __write_recoverydir(struct file *file, char *buf, size_t size)
 {
 	char *mesg = buf;
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 2244222..36243a3 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -124,6 +124,7 @@
 void nfs4_state_shutdown(void);
 void nfs4_reset_lease(time_t leasetime);
 int nfs4_reset_recoverydir(char *recdir);
+char * nfs4_recoverydir(void);
 #else
 static inline void nfs4_state_init(void) { }
 static inline int nfsd4_init_slabs(void) { return 0; }
@@ -132,6 +133,7 @@
 static inline void nfs4_state_shutdown(void) { }
 static inline void nfs4_reset_lease(time_t leasetime) { }
 static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
+static inline char * nfs4_recoverydir(void) {return NULL; }
 #endif
 
 /*