blkcg: blk-iocost: predeclare used structs
Fixes: 7caa47151ab2 ("blkcg: implement blk-iocost")
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/include/trace/events/iocost.h b/include/trace/events/iocost.h
index ec2217d..7ecaa65b 100644
--- a/include/trace/events/iocost.h
+++ b/include/trace/events/iocost.h
@@ -2,6 +2,10 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iocost
+struct ioc;
+struct ioc_now;
+struct ioc_gq;
+
#if !defined(_TRACE_BLK_IOCOST_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_BLK_IOCOST_H