diff --git a/hw/9pfs/9p.h b/hw/9pfs/9p.h
index 994f952600..a523ac34a9 100644
--- a/hw/9pfs/9p.h
+++ b/hw/9pfs/9p.h
@@ -424,21 +424,24 @@ typedef struct V9fsGetlock
 extern int open_fd_hw;
 extern int total_open_fd;
 
-static inline void v9fs_path_write_lock(V9fsState *s)
+static inline void coroutine_fn
+v9fs_path_write_lock(V9fsState *s)
 {
     if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {
         qemu_co_rwlock_wrlock(&s->rename_lock);
     }
 }
 
-static inline void v9fs_path_read_lock(V9fsState *s)
+static inline void coroutine_fn
+v9fs_path_read_lock(V9fsState *s)
 {
     if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {
         qemu_co_rwlock_rdlock(&s->rename_lock);
     }
 }
 
-static inline void v9fs_path_unlock(V9fsState *s)
+static inline void coroutine_fn
+v9fs_path_unlock(V9fsState *s)
 {
     if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {
         qemu_co_rwlock_unlock(&s->rename_lock);