From aede728aae355d4c1d38dd02747d415af011eea7 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Mon, 4 Oct 2021 20:02:51 +0100
Subject: [PATCH] io_uring: don't wake sqpoll in io_cqring_ev_posted
Git-commit: aede728aae355d4c1d38dd02747d415af011eea7
Patch-mainline: v5.16-rc1
References: bsc#1205205

io_cqring_ev_posted() doesn't need to wake SQPOLL, it's either done by
userspace or with task_work, but no action is required on request
completion. Rip off bits waking it up in io_cqring_ev_posted().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b49dab27b64cf11f4c50f2f90dcaac123430e05d.1633373302.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
 fs/io_uring.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 614c982c2697..af2cbe633345 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1619,8 +1619,6 @@ static void io_cqring_ev_posted(struct io_ring_ctx *ctx)
 	 */
 	if (wq_has_sleeper(&ctx->cq_wait))
 		wake_up_all(&ctx->cq_wait);
-	if (ctx->sq_data && waitqueue_active(&ctx->sq_data->wait))
-		wake_up(&ctx->sq_data->wait);
 	if (io_should_trigger_evfd(ctx))
 		eventfd_signal(ctx->cq_ev_fd, 1);
 	if (waitqueue_active(&ctx->poll_wait))
-- 
2.35.3