From a8c7c2509c0dd05409b9eb1e6e44dee83c00a052 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Thu, 15 Apr 2021 17:33:21 +0800
Subject: [PATCH] io_uring: Fix getting file for timeout

mainline inclusion
from mainline-5.4-rc8
commit 5683e5406e94ae1bfb0d9516a18fdb281d0f8d1d
category: feature
bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=27
CVE: NA
---------------------------

For timeout requests io_uring tries to grab a file with specified fd,
which is usually stdin/fd=0.
Update io_op_needs_file()

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Cheng Jian <cj.chengjian@huawei.com>
---
 fs/io_uring.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index cc69f38c77e5..77e8d403b3e7 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2612,6 +2612,7 @@ static bool io_op_needs_file(const struct io_uring_sqe *sqe)
 	switch (op) {
 	case IORING_OP_NOP:
 	case IORING_OP_POLL_REMOVE:
+	case IORING_OP_TIMEOUT:
 		return false;
 	default:
 		return true;
-- 
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