From 753456ece6b47718e2cbde595d3f43b82ef1ebf6 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Tue, 20 Oct 2020 23:50:27 +0100
Subject: io_uring: don't reuse linked_timeout

commit ff5771613cd7b3a76cd16cb54aa81d30d3c11d48 upstream.

Clear linked_timeout for next requests in __io_queue_sqe() so we won't
queue it up unnecessary when it's going to be punted.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Cc: stable@vger.kernel.org # v5.9
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/io_uring.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index f333ead8dc4e..59ab8c5c2aaa 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -6249,8 +6249,10 @@ err:
 	if (nxt) {
 		req = nxt;
 
-		if (req->flags & REQ_F_FORCE_ASYNC)
+		if (req->flags & REQ_F_FORCE_ASYNC) {
+			linked_timeout = NULL;
 			goto punt;
+		}
 		goto again;
 	}
 exit:
-- 
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