On Thu, Aug 15, 2019 at 04:05:35PM +0200, Jan Kara wrote:

quoted

+int cgroup_writeback_by_id(u64 bdi_id, int memcg_id, unsigned long nr_pages,
+			   enum wb_reason reason, struct wb_completion *done);
+int writeback_by_id(int id, unsigned long nr, enum wb_reason reason,
+		    struct wb_completion *done);

I guess this writeback_by_id() is stale? I didn't find it anywhere else...

Yes, removed.

Thanks.

-- 
tejun