diff --git a/headers/os/drivers/fs_interface.h b/headers/os/drivers/fs_interface.h
index fb4a8ac737..2b65cce789 100644
--- a/headers/os/drivers/fs_interface.h
+++ b/headers/os/drivers/fs_interface.h
@@ -107,6 +107,7 @@ struct fs_volume_ops {
 	status_t (*rewind_query)(fs_volume *volume, void *cookie);
 
 	/* support for FS layers */
+	status_t (*all_layers_mounted)(fs_volume *volume);
 	status_t (*create_sub_vnode)(fs_volume *volume, ino_t id, fs_vnode *vnode);
 	status_t (*delete_sub_vnode)(fs_volume *volume, fs_vnode *vnode);
 };
diff --git a/src/system/kernel/fs/vfs.cpp b/src/system/kernel/fs/vfs.cpp
index 654cfc3fcd..f4baa9270a 100644
--- a/src/system/kernel/fs/vfs.cpp
+++ b/src/system/kernel/fs/vfs.cpp
@@ -7023,6 +7023,13 @@ fs_mount(char* path, const char* device, const char* fsName, uint32 flags,
 
 			volume = volume->super_volume;
 		}
+
+		volume = mount->volume;
+		while (volume) {
+			if (volume->ops->all_layers_mounted != NULL)
+				volume->ops->all_layers_mounted(volume);
+			volume = volume->super_volume;
+		}
 	}
 
 	// the root node is supposed to be owned by the file system - it must