Right now any link trace is listed as being linked after the head
request in the chain, but it's more useful to note explicitly which
request a given new request is chained to. Change the link trace to dump
the tail request so that chains are immediately apparent when looking at
traces.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index d5425f4055ae..2b81269c4266 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -2163,7 +2163,7 @@ static inline int io_submit_sqe(struct io_ring_ctx *ctx, struct io_kiocb *req,
* conditions are true (normal request), then just queue it.
*/
if (unlikely(link->head)) {
- trace_io_uring_link(req, link->head);
+ trace_io_uring_link(req, link->last);
link->last->link = req;
link->last = req;
--
Jens Axboe
