Index: sys/fs/tmpfs/tmpfs.h
===================================================================
--- sys/fs/tmpfs/tmpfs.h
+++ sys/fs/tmpfs/tmpfs.h
@@ -404,6 +404,7 @@
 };
 
 #ifdef _KERNEL
+#include <sys/lock.h>
 /*
  * Prototypes for tmpfs_subr.c.
  */
@@ -493,8 +494,6 @@
 void tmpfs_subr_init(void);
 void tmpfs_subr_uninit(void);
 
-#endif
-
 /*
  * Macros/functions to convert from generic data structures to tmpfs
  * specific ones.
@@ -536,5 +535,6 @@
 
 	return (!(VFS_TO_TMPFS(vp->v_mount)->tm_nonc));
 }
+#endif /* _KERNEL */
 
 #endif /* _FS_TMPFS_TMPFS_H_ */